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// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The Google C++ Testing and Mocking Framework (Google Test)
#include "gtest/gtest.h"
#if GTEST_OS_STARBOARD
#include "starboard/client_porting/eztime/eztime.h"
#include "starboard/common/file.h"
#include "starboard/system.h"
#endif
#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <wchar.h>
#include <wctype.h>
#include <algorithm>
#include <chrono> // NOLINT
#include <cmath>
#include <cstdint>
#include <iomanip>
#include <iterator>
#include <limits>
#include <list>
#include <map>
#include <ostream> // NOLINT
#include <sstream>
#include <unordered_set>
#include <vector>
#include "gtest/gtest-assertion-result.h"
#include "gtest/gtest-spi.h"
#include "gtest/internal/custom/gtest.h"
#if GTEST_OS_STARBOARD
// Starboard does not require any additional includes.
#elif GTEST_OS_LINUX
#include <fcntl.h> // NOLINT
#include <limits.h> // NOLINT
#include <sched.h> // NOLINT
// Declares vsnprintf(). This header is not available on Windows.
#include <strings.h> // NOLINT
#include <sys/mman.h> // NOLINT
#include <sys/time.h> // NOLINT
#include <unistd.h> // NOLINT
#include <string>
#elif GTEST_OS_ZOS
#include <sys/time.h> // NOLINT
// On z/OS we additionally need strings.h for strcasecmp.
#include <strings.h> // NOLINT
#elif GTEST_OS_WINDOWS_MOBILE // We are on Windows CE.
#include <windows.h> // NOLINT
#undef min
#elif GTEST_OS_WINDOWS // We are on Windows proper.
#include <windows.h> // NOLINT
#undef min
#ifdef _MSC_VER
#include <crtdbg.h> // NOLINT
#endif
#include <io.h> // NOLINT
#include <sys/stat.h> // NOLINT
#include <sys/timeb.h> // NOLINT
#include <sys/types.h> // NOLINT
#if GTEST_OS_WINDOWS_MINGW
#include <sys/time.h> // NOLINT
#endif // GTEST_OS_WINDOWS_MINGW
#else
// cpplint thinks that the header is already included, so we want to
// silence it.
#include <sys/time.h> // NOLINT
#include <unistd.h> // NOLINT
#endif // GTEST_OS_LINUX
#if GTEST_HAS_EXCEPTIONS
#include <stdexcept>
#endif
#if GTEST_CAN_STREAM_RESULTS_
#include <arpa/inet.h> // NOLINT
#include <netdb.h> // NOLINT
#include <sys/socket.h> // NOLINT
#include <sys/types.h> // NOLINT
#endif
#include "src/gtest-internal-inl.h"
#if GTEST_OS_WINDOWS
#define vsnprintf _vsnprintf
#endif // GTEST_OS_WINDOWS
#if GTEST_OS_MAC
#ifndef GTEST_OS_IOS
#include <crt_externs.h>
#endif
#endif
#if GTEST_HAS_ABSL
#include "absl/debugging/failure_signal_handler.h"
#include "absl/debugging/stacktrace.h"
#include "absl/debugging/symbolize.h"
#include "absl/strings/str_cat.h"
#endif // GTEST_HAS_ABSL
namespace testing {
using internal::CountIf;
using internal::ForEach;
using internal::GetElementOr;
using internal::Shuffle;
// Constants.
// A test whose test suite name or test name matches this filter is
// disabled and not run.
static const char kDisableTestFilter[] = "DISABLED_*:*/DISABLED_*";
// A test suite whose name matches this filter is considered a death
// test suite and will be run before test suites whose name doesn't
// match this filter.
static const char kDeathTestSuiteFilter[] = "*DeathTest:*DeathTest/*";
// A test filter that matches everything.
static const char kUniversalFilter[] = "*";
// The default output format.
static const char kDefaultOutputFormat[] = "xml";
// The default output file.
static const char kDefaultOutputFile[] = "test_detail";
// The environment variable name for the test shard index.
static const char kTestShardIndex[] = "GTEST_SHARD_INDEX";
// The environment variable name for the total number of test shards.
static const char kTestTotalShards[] = "GTEST_TOTAL_SHARDS";
// The environment variable name for the test shard status file.
static const char kTestShardStatusFile[] = "GTEST_SHARD_STATUS_FILE";
namespace internal {
// The text used in failure messages to indicate the start of the
// stack trace.
const char kStackTraceMarker[] = "\nStack trace:\n";
// g_help_flag is true if and only if the --help flag or an equivalent form
// is specified on the command line.
bool g_help_flag = false;
#if !GTEST_OS_STARBOARD
// Utility function to Open File for Writing
static FILE* OpenFileForWriting(const std::string& output_file) {
FILE* fileout = nullptr;
FilePath output_file_path(output_file);
FilePath output_dir(output_file_path.RemoveFileName());
if (output_dir.CreateDirectoriesRecursively()) {
fileout = posix::FOpen(output_file.c_str(), "w");
}
if (fileout == nullptr) {
GTEST_LOG_(FATAL) << "Unable to open file \"" << output_file << "\"";
}
return fileout;
}
#endif
} // namespace internal
// Bazel passes in the argument to '--test_filter' via the TESTBRIDGE_TEST_ONLY
// environment variable.
static const char* GetDefaultFilter() {
const char* const testbridge_test_only =
internal::posix::GetEnv("TESTBRIDGE_TEST_ONLY");
if (testbridge_test_only != nullptr) {
return testbridge_test_only;
}
return kUniversalFilter;
}
// Bazel passes in the argument to '--test_runner_fail_fast' via the
// TESTBRIDGE_TEST_RUNNER_FAIL_FAST environment variable.
static bool GetDefaultFailFast() {
const char* const testbridge_test_runner_fail_fast =
internal::posix::GetEnv("TESTBRIDGE_TEST_RUNNER_FAIL_FAST");
if (testbridge_test_runner_fail_fast != nullptr) {
return strcmp(testbridge_test_runner_fail_fast, "1") == 0;
}
return false;
}
} // namespace testing
GTEST_DEFINE_bool_(
fail_fast,
testing::internal::BoolFromGTestEnv("fail_fast",
testing::GetDefaultFailFast()),
"True if and only if a test failure should stop further test execution.");
GTEST_DEFINE_bool_(
also_run_disabled_tests,
testing::internal::BoolFromGTestEnv("also_run_disabled_tests", false),
"Run disabled tests too, in addition to the tests normally being run.");
GTEST_DEFINE_bool_(
break_on_failure,
testing::internal::BoolFromGTestEnv("break_on_failure", false),
"True if and only if a failed assertion should be a debugger "
"break-point.");
GTEST_DEFINE_bool_(catch_exceptions,
testing::internal::BoolFromGTestEnv("catch_exceptions",
true),
"True if and only if " GTEST_NAME_
" should catch exceptions and treat them as test failures.");
GTEST_DEFINE_string_(
color, testing::internal::StringFromGTestEnv("color", "auto"),
"Whether to use colors in the output. Valid values: yes, no, "
"and auto. 'auto' means to use colors if the output is "
"being sent to a terminal and the TERM environment variable "
"is set to a terminal type that supports colors.");
GTEST_DEFINE_string_(
filter,
testing::internal::StringFromGTestEnv("filter",
testing::GetDefaultFilter()),
"A colon-separated list of glob (not regex) patterns "
"for filtering the tests to run, optionally followed by a "
"'-' and a : separated list of negative patterns (tests to "
"exclude). A test is run if it matches one of the positive "
"patterns and does not match any of the negative patterns.");
GTEST_DEFINE_bool_(
install_failure_signal_handler,
testing::internal::BoolFromGTestEnv("install_failure_signal_handler",
false),
"If true and supported on the current platform, " GTEST_NAME_
" should "
"install a signal handler that dumps debugging information when fatal "
"signals are raised.");
GTEST_DEFINE_bool_(list_tests, false, "List all tests without running them.");
// The net priority order after flag processing is thus:
// --gtest_output command line flag
// GTEST_OUTPUT environment variable
// XML_OUTPUT_FILE environment variable
// ''
GTEST_DEFINE_string_(
output,
testing::internal::StringFromGTestEnv(
"output", testing::internal::OutputFlagAlsoCheckEnvVar().c_str()),
"A format (defaults to \"xml\" but can be specified to be \"json\"), "
"optionally followed by a colon and an output file name or directory. "
"A directory is indicated by a trailing pathname separator. "
"Examples: \"xml:filename.xml\", \"xml::directoryname/\". "
"If a directory is specified, output files will be created "
"within that directory, with file-names based on the test "
"executable's name and, if necessary, made unique by adding "
"digits.");
GTEST_DEFINE_bool_(
brief, testing::internal::BoolFromGTestEnv("brief", false),
"True if only test failures should be displayed in text output.");
GTEST_DEFINE_bool_(print_time,
testing::internal::BoolFromGTestEnv("print_time", true),
"True if and only if " GTEST_NAME_
" should display elapsed time in text output.");
GTEST_DEFINE_bool_(print_utf8,
testing::internal::BoolFromGTestEnv("print_utf8", true),
"True if and only if " GTEST_NAME_
" prints UTF8 characters as text.");
GTEST_DEFINE_int32_(
random_seed, testing::internal::Int32FromGTestEnv("random_seed", 0),
"Random number seed to use when shuffling test orders. Must be in range "
"[1, 99999], or 0 to use a seed based on the current time.");
GTEST_DEFINE_int32_(
repeat, testing::internal::Int32FromGTestEnv("repeat", 1),
"How many times to repeat each test. Specify a negative number "
"for repeating forever. Useful for shaking out flaky tests.");
GTEST_DEFINE_bool_(
recreate_environments_when_repeating,
testing::internal::BoolFromGTestEnv("recreate_environments_when_repeating",
false),
"Controls whether global test environments are recreated for each repeat "
"of the tests. If set to false the global test environments are only set "
"up once, for the first iteration, and only torn down once, for the last. "
"Useful for shaking out flaky tests with stable, expensive test "
"environments. If --gtest_repeat is set to a negative number, meaning "
"there is no last run, the environments will always be recreated to avoid "
"leaks.");
GTEST_DEFINE_bool_(show_internal_stack_frames, false,
"True if and only if " GTEST_NAME_
" should include internal stack frames when "
"printing test failure stack traces.");
GTEST_DEFINE_bool_(shuffle,
testing::internal::BoolFromGTestEnv("shuffle", false),
"True if and only if " GTEST_NAME_
" should randomize tests' order on every run.");
GTEST_DEFINE_int32_(
stack_trace_depth,
testing::internal::Int32FromGTestEnv("stack_trace_depth",
testing::kMaxStackTraceDepth),
"The maximum number of stack frames to print when an "
"assertion fails. The valid range is 0 through 100, inclusive.");
GTEST_DEFINE_string_(
stream_result_to,
testing::internal::StringFromGTestEnv("stream_result_to", ""),
"This flag specifies the host name and the port number on which to stream "
"test results. Example: \"localhost:555\". The flag is effective only on "
"Linux.");
GTEST_DEFINE_bool_(
throw_on_failure,
testing::internal::BoolFromGTestEnv("throw_on_failure", false),
"When this flag is specified, a failed assertion will throw an exception "
"if exceptions are enabled or exit the program with a non-zero code "
"otherwise. For use with an external test framework.");
#if GTEST_USE_OWN_FLAGFILE_FLAG_
GTEST_DEFINE_string_(
flagfile, testing::internal::StringFromGTestEnv("flagfile", ""),
"This flag specifies the flagfile to read command-line flags from.");
#endif // GTEST_USE_OWN_FLAGFILE_FLAG_
#if GTEST_OS_STARBOARD
GTEST_DEFINE_int32_(
total_shards,
internal::Int32FromGTestEnv("total_shards", -1),
"The total number of shards to split test cases into.");
GTEST_DEFINE_int32_(
shard_index,
internal::Int32FromGTestEnv("shard_index", -1),
"The shard index that determines the subset of unit tests run in the shard.");
#endif // GTEST_OS_STARBOARD
namespace testing {
namespace internal {
// Generates a random number from [0, range), using a Linear
// Congruential Generator (LCG). Crashes if 'range' is 0 or greater
// than kMaxRange.
uint32_t Random::Generate(uint32_t range) {
// These constants are the same as are used in glibc's rand(3).
// Use wider types than necessary to prevent unsigned overflow diagnostics.
state_ = static_cast<uint32_t>(1103515245ULL * state_ + 12345U) % kMaxRange;
GTEST_CHECK_(range > 0) << "Cannot generate a number in the range [0, 0).";
GTEST_CHECK_(range <= kMaxRange)
<< "Generation of a number in [0, " << range << ") was requested, "
<< "but this can only generate numbers in [0, " << kMaxRange << ").";
// Converting via modulus introduces a bit of downward bias, but
// it's simple, and a linear congruential generator isn't too good
// to begin with.
return state_ % range;
}
// GTestIsInitialized() returns true if and only if the user has initialized
// Google Test. Useful for catching the user mistake of not initializing
// Google Test before calling RUN_ALL_TESTS().
static bool GTestIsInitialized() { return GetArgvs().size() > 0; }
// Iterates over a vector of TestSuites, keeping a running sum of the
// results of calling a given int-returning method on each.
// Returns the sum.
static int SumOverTestSuiteList(const std::vector<TestSuite*>& case_list,
int (TestSuite::*method)() const) {
int sum = 0;
for (size_t i = 0; i < case_list.size(); i++) {
sum += (case_list[i]->*method)();
}
return sum;
}
// Returns true if and only if the test suite passed.
static bool TestSuitePassed(const TestSuite* test_suite) {
return test_suite->should_run() && test_suite->Passed();
}
// Returns true if and only if the test suite failed.
static bool TestSuiteFailed(const TestSuite* test_suite) {
return test_suite->should_run() && test_suite->Failed();
}
// Returns true if and only if test_suite contains at least one test that
// should run.
static bool ShouldRunTestSuite(const TestSuite* test_suite) {
return test_suite->should_run();
}
// AssertHelper constructor.
AssertHelper::AssertHelper(TestPartResult::Type type, const char* file,
int line, const char* message)
: data_(new AssertHelperData(type, file, line, message)) {}
AssertHelper::~AssertHelper() { delete data_; }
// Message assignment, for assertion streaming support.
void AssertHelper::operator=(const Message& message) const {
UnitTest::GetInstance()->AddTestPartResult(
data_->type, data_->file, data_->line,
AppendUserMessage(data_->message, message),
UnitTest::GetInstance()->impl()->CurrentOsStackTraceExceptTop(1)
// Skips the stack frame for this function itself.
); // NOLINT
}
namespace {
// When TEST_P is found without a matching INSTANTIATE_TEST_SUITE_P
// to creates test cases for it, a synthetic test case is
// inserted to report ether an error or a log message.
//
// This configuration bit will likely be removed at some point.
constexpr bool kErrorOnUninstantiatedParameterizedTest = true;
constexpr bool kErrorOnUninstantiatedTypeParameterizedTest = true;
// A test that fails at a given file/line location with a given message.
class FailureTest : public Test {
public:
explicit FailureTest(const CodeLocation& loc, std::string error_message,
bool as_error)
: loc_(loc),
error_message_(std::move(error_message)),
as_error_(as_error) {}
void TestBody() override {
if (as_error_) {
AssertHelper(TestPartResult::kNonFatalFailure, loc_.file.c_str(),
loc_.line, "") = Message() << error_message_;
} else {
std::cout << error_message_ << std::endl;
}
}
private:
const CodeLocation loc_;
const std::string error_message_;
const bool as_error_;
};
} // namespace
std::set<std::string>* GetIgnoredParameterizedTestSuites() {
return UnitTest::GetInstance()->impl()->ignored_parameterized_test_suites();
}
// Add a given test_suit to the list of them allow to go un-instantiated.
MarkAsIgnored::MarkAsIgnored(const char* test_suite) {
GetIgnoredParameterizedTestSuites()->insert(test_suite);
}
// If this parameterized test suite has no instantiations (and that
// has not been marked as okay), emit a test case reporting that.
void InsertSyntheticTestCase(const std::string& name, CodeLocation location,
bool has_test_p) {
const auto& ignored = *GetIgnoredParameterizedTestSuites();
if (ignored.find(name) != ignored.end()) return;
const char kMissingInstantiation[] = //
" is defined via TEST_P, but never instantiated. None of the test cases "
"will run. Either no INSTANTIATE_TEST_SUITE_P is provided or the only "
"ones provided expand to nothing."
"\n\n"
"Ideally, TEST_P definitions should only ever be included as part of "
"binaries that intend to use them. (As opposed to, for example, being "
"placed in a library that may be linked in to get other utilities.)";
const char kMissingTestCase[] = //
" is instantiated via INSTANTIATE_TEST_SUITE_P, but no tests are "
"defined via TEST_P . No test cases will run."
"\n\n"
"Ideally, INSTANTIATE_TEST_SUITE_P should only ever be invoked from "
"code that always depend on code that provides TEST_P. Failing to do "
"so is often an indication of dead code, e.g. the last TEST_P was "
"removed but the rest got left behind.";
std::string message =
"Parameterized test suite " + name +
(has_test_p ? kMissingInstantiation : kMissingTestCase) +
"\n\n"
"To suppress this error for this test suite, insert the following line "
"(in a non-header) in the namespace it is defined in:"
"\n\n"
"GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(" +
name + ");";
std::string full_name = "UninstantiatedParameterizedTestSuite<" + name + ">";
RegisterTest( //
"GoogleTestVerification", full_name.c_str(),
nullptr, // No type parameter.
nullptr, // No value parameter.
location.file.c_str(), location.line, [message, location] {
return new FailureTest(location, message,
kErrorOnUninstantiatedParameterizedTest);
});
}
void RegisterTypeParameterizedTestSuite(const char* test_suite_name,
CodeLocation code_location) {
GetUnitTestImpl()->type_parameterized_test_registry().RegisterTestSuite(
test_suite_name, code_location);
}
void RegisterTypeParameterizedTestSuiteInstantiation(const char* case_name) {
GetUnitTestImpl()->type_parameterized_test_registry().RegisterInstantiation(
case_name);
}
void TypeParameterizedTestSuiteRegistry::RegisterTestSuite(
const char* test_suite_name, CodeLocation code_location) {
suites_.emplace(std::string(test_suite_name),
TypeParameterizedTestSuiteInfo(code_location));
}
void TypeParameterizedTestSuiteRegistry::RegisterInstantiation(
const char* test_suite_name) {
auto it = suites_.find(std::string(test_suite_name));
if (it != suites_.end()) {
it->second.instantiated = true;
} else {
GTEST_LOG_(ERROR) << "Unknown type parameterized test suit '"
<< test_suite_name << "'";
}
}
void TypeParameterizedTestSuiteRegistry::CheckForInstantiations() {
const auto& ignored = *GetIgnoredParameterizedTestSuites();
for (const auto& testcase : suites_) {
if (testcase.second.instantiated) continue;
if (ignored.find(testcase.first) != ignored.end()) continue;
std::string message =
"Type parameterized test suite " + testcase.first +
" is defined via REGISTER_TYPED_TEST_SUITE_P, but never instantiated "
"via INSTANTIATE_TYPED_TEST_SUITE_P. None of the test cases will run."
"\n\n"
"Ideally, TYPED_TEST_P definitions should only ever be included as "
"part of binaries that intend to use them. (As opposed to, for "
"example, being placed in a library that may be linked in to get other "
"utilities.)"
"\n\n"
"To suppress this error for this test suite, insert the following line "
"(in a non-header) in the namespace it is defined in:"
"\n\n"
"GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(" +
testcase.first + ");";
std::string full_name =
"UninstantiatedTypeParameterizedTestSuite<" + testcase.first + ">";
RegisterTest( //
"GoogleTestVerification", full_name.c_str(),
nullptr, // No type parameter.
nullptr, // No value parameter.
testcase.second.code_location.file.c_str(),
testcase.second.code_location.line, [message, testcase] {
return new FailureTest(testcase.second.code_location, message,
kErrorOnUninstantiatedTypeParameterizedTest);
});
}
}
// A copy of all command line arguments. Set by InitGoogleTest().
static ::std::vector<std::string> g_argvs;
::std::vector<std::string> GetArgvs() {
#if defined(GTEST_CUSTOM_GET_ARGVS_)
// GTEST_CUSTOM_GET_ARGVS_() may return a container of std::string or
// ::string. This code converts it to the appropriate type.
const auto& custom = GTEST_CUSTOM_GET_ARGVS_();
return ::std::vector<std::string>(custom.begin(), custom.end());
#else // defined(GTEST_CUSTOM_GET_ARGVS_)
return g_argvs;
#endif // defined(GTEST_CUSTOM_GET_ARGVS_)
}
// Returns the current application's name, removing directory path if that
// is present.
FilePath GetCurrentExecutableName() {
FilePath result;
#if GTEST_OS_WINDOWS || GTEST_OS_OS2
result.Set(FilePath(GetArgvs()[0]).RemoveExtension("exe"));
#else
result.Set(FilePath(GetArgvs()[0]));
#endif // GTEST_OS_WINDOWS
return result.RemoveDirectoryName();
}
// Functions for processing the gtest_output flag.
// Returns the output format, or "" for normal printed output.
std::string UnitTestOptions::GetOutputFormat() {
std::string s = GTEST_FLAG_GET(output);
const char* const gtest_output_flag = s.c_str();
const char* const colon = strchr(gtest_output_flag, ':');
return (colon == nullptr)
? std::string(gtest_output_flag)
: std::string(gtest_output_flag,
static_cast<size_t>(colon - gtest_output_flag));
}
// Returns the name of the requested output file, or the default if none
// was explicitly specified.
std::string UnitTestOptions::GetAbsolutePathToOutputFile() {
std::string s = GTEST_FLAG_GET(output);
const char* const gtest_output_flag = s.c_str();
std::string format = GetOutputFormat();
if (format.empty()) format = std::string(kDefaultOutputFormat);
const char* const colon = strchr(gtest_output_flag, ':');
if (colon == nullptr)
return internal::FilePath::MakeFileName(
internal::FilePath(
UnitTest::GetInstance()->original_working_dir()),
internal::FilePath(kDefaultOutputFile), 0, format.c_str())
.string();
internal::FilePath output_name(colon + 1);
if (!output_name.IsAbsolutePath())
output_name = internal::FilePath::ConcatPaths(
internal::FilePath(UnitTest::GetInstance()->original_working_dir()),
internal::FilePath(colon + 1));
if (!output_name.IsDirectory()) return output_name.string();
internal::FilePath result(internal::FilePath::GenerateUniqueFileName(
output_name, internal::GetCurrentExecutableName(),
GetOutputFormat().c_str()));
return result.string();
}
// Returns true if and only if the wildcard pattern matches the string. Each
// pattern consists of regular characters, single-character wildcards (?), and
// multi-character wildcards (*).
//
// This function implements a linear-time string globbing algorithm based on
// https://research.swtch.com/glob.
static bool PatternMatchesString(const std::string& name_str,
const char* pattern, const char* pattern_end) {
const char* name = name_str.c_str();
const char* const name_begin = name;
const char* const name_end = name + name_str.size();
const char* pattern_next = pattern;
const char* name_next = name;
while (pattern < pattern_end || name < name_end) {
if (pattern < pattern_end) {
switch (*pattern) {
default: // Match an ordinary character.
if (name < name_end && *name == *pattern) {
++pattern;
++name;
continue;
}
break;
case '?': // Match any single character.
if (name < name_end) {
++pattern;
++name;
continue;
}
break;
case '*':
// Match zero or more characters. Start by skipping over the wildcard
// and matching zero characters from name. If that fails, restart and
// match one more character than the last attempt.
pattern_next = pattern;
name_next = name + 1;
++pattern;
continue;
}
}
// Failed to match a character. Restart if possible.
if (name_begin < name_next && name_next <= name_end) {
pattern = pattern_next;
name = name_next;
continue;
}
return false;
}
return true;
}
namespace {
bool IsGlobPattern(const std::string& pattern) {
return std::any_of(pattern.begin(), pattern.end(),
[](const char c) { return c == '?' || c == '*'; });
}
class UnitTestFilter {
public:
UnitTestFilter() = default;
// Constructs a filter from a string of patterns separated by `:`.
explicit UnitTestFilter(const std::string& filter) {
// By design "" filter matches "" string.
std::vector<std::string> all_patterns;
SplitString(filter, ':', &all_patterns);
const auto exact_match_patterns_begin = std::partition(
all_patterns.begin(), all_patterns.end(), &IsGlobPattern);
glob_patterns_.reserve(static_cast<size_t>(
std::distance(all_patterns.begin(), exact_match_patterns_begin)));
std::move(all_patterns.begin(), exact_match_patterns_begin,
std::inserter(glob_patterns_, glob_patterns_.begin()));
std::move(
exact_match_patterns_begin, all_patterns.end(),
std::inserter(exact_match_patterns_, exact_match_patterns_.begin()));
}
// Returns true if and only if name matches at least one of the patterns in
// the filter.
bool MatchesName(const std::string& name) const {
return exact_match_patterns_.count(name) > 0 ||
std::any_of(glob_patterns_.begin(), glob_patterns_.end(),
[&name](const std::string& pattern) {
return PatternMatchesString(
name, pattern.c_str(),
pattern.c_str() + pattern.size());
});
}
private:
std::vector<std::string> glob_patterns_;
std::unordered_set<std::string> exact_match_patterns_;
};
class PositiveAndNegativeUnitTestFilter {
public:
// Constructs a positive and a negative filter from a string. The string
// contains a positive filter optionally followed by a '-' character and a
// negative filter. In case only a negative filter is provided the positive
// filter will be assumed "*".
// A filter is a list of patterns separated by ':'.
explicit PositiveAndNegativeUnitTestFilter(const std::string& filter) {
std::vector<std::string> positive_and_negative_filters;
// NOTE: `SplitString` always returns a non-empty container.
SplitString(filter, '-', &positive_and_negative_filters);
const auto& positive_filter = positive_and_negative_filters.front();
if (positive_and_negative_filters.size() > 1) {
positive_filter_ = UnitTestFilter(
positive_filter.empty() ? kUniversalFilter : positive_filter);
// TODO(b/214626361): Fail on multiple '-' characters
// For the moment to preserve old behavior we concatenate the rest of the
// string parts with `-` as separator to generate the negative filter.
auto negative_filter_string = positive_and_negative_filters[1];
for (std::size_t i = 2; i < positive_and_negative_filters.size(); i++)
negative_filter_string =
negative_filter_string + '-' + positive_and_negative_filters[i];
negative_filter_ = UnitTestFilter(negative_filter_string);
} else {
// In case we don't have a negative filter and positive filter is ""
// we do not use kUniversalFilter by design as opposed to when we have a
// negative filter.
positive_filter_ = UnitTestFilter(positive_filter);
}
}
// Returns true if and only if test name (this is generated by appending test
// suit name and test name via a '.' character) matches the positive filter
// and does not match the negative filter.
bool MatchesTest(const std::string& test_suite_name,
const std::string& test_name) const {
return MatchesName(test_suite_name + "." + test_name);
}
// Returns true if and only if name matches the positive filter and does not
// match the negative filter.
bool MatchesName(const std::string& name) const {
return positive_filter_.MatchesName(name) &&
!negative_filter_.MatchesName(name);
}
private:
UnitTestFilter positive_filter_;
UnitTestFilter negative_filter_;
};
} // namespace
bool UnitTestOptions::MatchesFilter(const std::string& name_str,
const char* filter) {
return UnitTestFilter(filter).MatchesName(name_str);
}
// Returns true if and only if the user-specified filter matches the test
// suite name and the test name.
bool UnitTestOptions::FilterMatchesTest(const std::string& test_suite_name,
const std::string& test_name) {
// Split --gtest_filter at '-', if there is one, to separate into
// positive filter and negative filter portions
return PositiveAndNegativeUnitTestFilter(GTEST_FLAG_GET(filter))
.MatchesTest(test_suite_name, test_name);
}
#if GTEST_HAS_SEH
// Returns EXCEPTION_EXECUTE_HANDLER if Google Test should handle the
// given SEH exception, or EXCEPTION_CONTINUE_SEARCH otherwise.
// This function is useful as an __except condition.
int UnitTestOptions::GTestShouldProcessSEH(DWORD exception_code) {
// Google Test should handle a SEH exception if:
// 1. the user wants it to, AND
// 2. this is not a breakpoint exception, AND
// 3. this is not a C++ exception (VC++ implements them via SEH,
// apparently).
//
// SEH exception code for C++ exceptions.
// (see http://support.microsoft.com/kb/185294 for more information).
const DWORD kCxxExceptionCode = 0xe06d7363;
bool should_handle = true;
if (!GTEST_FLAG_GET(catch_exceptions))
should_handle = false;
else if (exception_code == EXCEPTION_BREAKPOINT)
should_handle = false;
else if (exception_code == kCxxExceptionCode)
should_handle = false;
return should_handle ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
}
#endif // GTEST_HAS_SEH
} // namespace internal
// The c'tor sets this object as the test part result reporter used by
// Google Test. The 'result' parameter specifies where to report the
// results. Intercepts only failures from the current thread.
ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter(
TestPartResultArray* result)
: intercept_mode_(INTERCEPT_ONLY_CURRENT_THREAD), result_(result) {
Init();
}
// The c'tor sets this object as the test part result reporter used by
// Google Test. The 'result' parameter specifies where to report the
// results.
ScopedFakeTestPartResultReporter::ScopedFakeTestPartResultReporter(
InterceptMode intercept_mode, TestPartResultArray* result)
: intercept_mode_(intercept_mode), result_(result) {
Init();
}
void ScopedFakeTestPartResultReporter::Init() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
if (intercept_mode_ == INTERCEPT_ALL_THREADS) {
old_reporter_ = impl->GetGlobalTestPartResultReporter();
impl->SetGlobalTestPartResultReporter(this);
} else {
old_reporter_ = impl->GetTestPartResultReporterForCurrentThread();
impl->SetTestPartResultReporterForCurrentThread(this);
}
}
// The d'tor restores the test part result reporter used by Google Test
// before.
ScopedFakeTestPartResultReporter::~ScopedFakeTestPartResultReporter() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
if (intercept_mode_ == INTERCEPT_ALL_THREADS) {
impl->SetGlobalTestPartResultReporter(old_reporter_);
} else {
impl->SetTestPartResultReporterForCurrentThread(old_reporter_);
}
}
// Increments the test part result count and remembers the result.
// This method is from the TestPartResultReporterInterface interface.
void ScopedFakeTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
result_->Append(result);
}
namespace internal {
// Returns the type ID of ::testing::Test. We should always call this
// instead of GetTypeId< ::testing::Test>() to get the type ID of
// testing::Test. This is to work around a suspected linker bug when
// using Google Test as a framework on Mac OS X. The bug causes
// GetTypeId< ::testing::Test>() to return different values depending
// on whether the call is from the Google Test framework itself or
// from user test code. GetTestTypeId() is guaranteed to always
// return the same value, as it always calls GetTypeId<>() from the
// gtest.cc, which is within the Google Test framework.
TypeId GetTestTypeId() { return GetTypeId<Test>(); }
// The value of GetTestTypeId() as seen from within the Google Test
// library. This is solely for testing GetTestTypeId().
extern const TypeId kTestTypeIdInGoogleTest = GetTestTypeId();
// This predicate-formatter checks that 'results' contains a test part
// failure of the given type and that the failure message contains the
// given substring.
static AssertionResult HasOneFailure(const char* /* results_expr */,
const char* /* type_expr */,
const char* /* substr_expr */,
const TestPartResultArray& results,
TestPartResult::Type type,
const std::string& substr) {
const std::string expected(type == TestPartResult::kFatalFailure
? "1 fatal failure"
: "1 non-fatal failure");
Message msg;
if (results.size() != 1) {
msg << "Expected: " << expected << "\n"
<< " Actual: " << results.size() << " failures";
for (int i = 0; i < results.size(); i++) {
msg << "\n" << results.GetTestPartResult(i);
}
return AssertionFailure() << msg;
}
const TestPartResult& r = results.GetTestPartResult(0);
if (r.type() != type) {
return AssertionFailure() << "Expected: " << expected << "\n"
<< " Actual:\n"
<< r;
}
if (strstr(r.message(), substr.c_str()) == nullptr) {
return AssertionFailure()
<< "Expected: " << expected << " containing \"" << substr << "\"\n"
<< " Actual:\n"
<< r;
}
return AssertionSuccess();
}
// The constructor of SingleFailureChecker remembers where to look up
// test part results, what type of failure we expect, and what
// substring the failure message should contain.
SingleFailureChecker::SingleFailureChecker(const TestPartResultArray* results,
TestPartResult::Type type,
const std::string& substr)
: results_(results), type_(type), substr_(substr) {}
// The destructor of SingleFailureChecker verifies that the given
// TestPartResultArray contains exactly one failure that has the given
// type and contains the given substring. If that's not the case, a
// non-fatal failure will be generated.
SingleFailureChecker::~SingleFailureChecker() {
EXPECT_PRED_FORMAT3(HasOneFailure, *results_, type_, substr_);
}
DefaultGlobalTestPartResultReporter::DefaultGlobalTestPartResultReporter(
UnitTestImpl* unit_test)
: unit_test_(unit_test) {}
void DefaultGlobalTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
unit_test_->current_test_result()->AddTestPartResult(result);
unit_test_->listeners()->repeater()->OnTestPartResult(result);
}
DefaultPerThreadTestPartResultReporter::DefaultPerThreadTestPartResultReporter(
UnitTestImpl* unit_test)
: unit_test_(unit_test) {}
void DefaultPerThreadTestPartResultReporter::ReportTestPartResult(
const TestPartResult& result) {
unit_test_->GetGlobalTestPartResultReporter()->ReportTestPartResult(result);
}
// Returns the global test part result reporter.
TestPartResultReporterInterface*
UnitTestImpl::GetGlobalTestPartResultReporter() {
internal::MutexLock lock(&global_test_part_result_reporter_mutex_);
return global_test_part_result_repoter_;
}
// Sets the global test part result reporter.
void UnitTestImpl::SetGlobalTestPartResultReporter(
TestPartResultReporterInterface* reporter) {
internal::MutexLock lock(&global_test_part_result_reporter_mutex_);
global_test_part_result_repoter_ = reporter;
}
// Returns the test part result reporter for the current thread.
TestPartResultReporterInterface*
UnitTestImpl::GetTestPartResultReporterForCurrentThread() {
return per_thread_test_part_result_reporter_.get();
}
// Sets the test part result reporter for the current thread.
void UnitTestImpl::SetTestPartResultReporterForCurrentThread(
TestPartResultReporterInterface* reporter) {
per_thread_test_part_result_reporter_.set(reporter);
}
// Gets the number of successful test suites.
int UnitTestImpl::successful_test_suite_count() const {
return CountIf(test_suites_, TestSuitePassed);
}
// Gets the number of failed test suites.
int UnitTestImpl::failed_test_suite_count() const {
return CountIf(test_suites_, TestSuiteFailed);
}
// Gets the number of all test suites.
int UnitTestImpl::total_test_suite_count() const {
return static_cast<int>(test_suites_.size());
}
// Gets the number of all test suites that contain at least one test
// that should run.
int UnitTestImpl::test_suite_to_run_count() const {
return CountIf(test_suites_, ShouldRunTestSuite);
}
// Gets the number of successful tests.
int UnitTestImpl::successful_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::successful_test_count);
}
// Gets the number of skipped tests.
int UnitTestImpl::skipped_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::skipped_test_count);
}
// Gets the number of failed tests.
int UnitTestImpl::failed_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::failed_test_count);
}
// Gets the number of disabled tests that will be reported in the XML report.
int UnitTestImpl::reportable_disabled_test_count() const {
return SumOverTestSuiteList(test_suites_,
&TestSuite::reportable_disabled_test_count);
}
// Gets the number of disabled tests.
int UnitTestImpl::disabled_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::disabled_test_count);
}
// Gets the number of tests to be printed in the XML report.
int UnitTestImpl::reportable_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::reportable_test_count);
}
// Gets the number of all tests.
int UnitTestImpl::total_test_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::total_test_count);
}
// Gets the number of tests that should run.
int UnitTestImpl::test_to_run_count() const {
return SumOverTestSuiteList(test_suites_, &TestSuite::test_to_run_count);
}
// Returns the current OS stack trace as an std::string.
//
// The maximum number of stack frames to be included is specified by
// the gtest_stack_trace_depth flag. The skip_count parameter
// specifies the number of top frames to be skipped, which doesn't
// count against the number of frames to be included.
//
// For example, if Foo() calls Bar(), which in turn calls
// CurrentOsStackTraceExceptTop(1), Foo() will be included in the
// trace but Bar() and CurrentOsStackTraceExceptTop() won't.
std::string UnitTestImpl::CurrentOsStackTraceExceptTop(int skip_count) {
return os_stack_trace_getter()->CurrentStackTrace(
static_cast<int>(GTEST_FLAG_GET(stack_trace_depth)), skip_count + 1
// Skips the user-specified number of frames plus this function
// itself.
); // NOLINT
}
// A helper class for measuring elapsed times.
class Timer {
public:
Timer() : start_(std::chrono::steady_clock::now()) {}
// Return time elapsed in milliseconds since the timer was created.
TimeInMillis Elapsed() {
return std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - start_)
.count();
}
private:
std::chrono::steady_clock::time_point start_;
};
// Returns a timestamp as milliseconds since the epoch. Note this time may jump
// around subject to adjustments by the system, to measure elapsed time use
// Timer instead.
TimeInMillis GetTimeInMillis() {
#if GTEST_OS_STARBOARD
// Use EzTime to get millis from posix epoch.
EzTimeValue time_value;
EzTimeValueGetNow(&time_value, NULL);
return time_value.tv_sec * 1000 + time_value.tv_usec / 1000;
#else
return std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::system_clock::now() -
std::chrono::system_clock::from_time_t(0))
.count();
#endif // GTEST_OS_STARBOARD
}
// Utilities
// class String.
#if GTEST_OS_WINDOWS_MOBILE
// Creates a UTF-16 wide string from the given ANSI string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the wide string, or NULL if the
// input is NULL.
LPCWSTR String::AnsiToUtf16(const char* ansi) {
if (!ansi) return nullptr;
const int length = strlen(ansi);
const int unicode_length =
MultiByteToWideChar(CP_ACP, 0, ansi, length, nullptr, 0);
WCHAR* unicode = new WCHAR[unicode_length + 1];
MultiByteToWideChar(CP_ACP, 0, ansi, length, unicode, unicode_length);
unicode[unicode_length] = 0;
return unicode;
}
// Creates an ANSI string from the given wide string, allocating
// memory using new. The caller is responsible for deleting the return
// value using delete[]. Returns the ANSI string, or NULL if the
// input is NULL.
const char* String::Utf16ToAnsi(LPCWSTR utf16_str) {
if (!utf16_str) return nullptr;
const int ansi_length = WideCharToMultiByte(CP_ACP, 0, utf16_str, -1, nullptr,
0, nullptr, nullptr);
char* ansi = new char[ansi_length + 1];
WideCharToMultiByte(CP_ACP, 0, utf16_str, -1, ansi, ansi_length, nullptr,
nullptr);
ansi[ansi_length] = 0;
return ansi;
}
#endif // GTEST_OS_WINDOWS_MOBILE
// Compares two C strings. Returns true if and only if they have the same
// content.
//
// Unlike strcmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CStringEquals(const char* lhs, const char* rhs) {
if (lhs == nullptr) return rhs == nullptr;
if (rhs == nullptr) return false;
return strcmp(lhs, rhs) == 0;
}
#if GTEST_HAS_STD_WSTRING
// Converts an array of wide chars to a narrow string using the UTF-8
// encoding, and streams the result to the given Message object.
static void StreamWideCharsToMessage(const wchar_t* wstr, size_t length,
Message* msg) {
for (size_t i = 0; i != length;) { // NOLINT
if (wstr[i] != L'\0') {
*msg << WideStringToUtf8(wstr + i, static_cast<int>(length - i));
while (i != length && wstr[i] != L'\0') i++;
} else {
*msg << '\0';
i++;
}
}
}
#endif // GTEST_HAS_STD_WSTRING
void SplitString(const ::std::string& str, char delimiter,
::std::vector< ::std::string>* dest) {
::std::vector< ::std::string> parsed;
::std::string::size_type pos = 0;
while (::testing::internal::AlwaysTrue()) {
const ::std::string::size_type colon = str.find(delimiter, pos);
if (colon == ::std::string::npos) {
parsed.push_back(str.substr(pos));
break;
} else {
parsed.push_back(str.substr(pos, colon - pos));
pos = colon + 1;
}
}
dest->swap(parsed);
}
} // namespace internal
// Constructs an empty Message.
// We allocate the stringstream separately because otherwise each use of
// ASSERT/EXPECT in a procedure adds over 200 bytes to the procedure's
// stack frame leading to huge stack frames in some cases; gcc does not reuse
// the stack space.
Message::Message() : ss_(new ::std::stringstream) {
// By default, we want there to be enough precision when printing
// a double to a Message.
*ss_ << std::setprecision(std::numeric_limits<double>::digits10 + 2);
}
// These two overloads allow streaming a wide C string to a Message
// using the UTF-8 encoding.
Message& Message::operator<<(const wchar_t* wide_c_str) {
return *this << internal::String::ShowWideCString(wide_c_str);
}
Message& Message::operator<<(wchar_t* wide_c_str) {
return *this << internal::String::ShowWideCString(wide_c_str);
}
#if GTEST_HAS_STD_WSTRING
// Converts the given wide string to a narrow string using the UTF-8
// encoding, and streams the result to this Message object.
Message& Message::operator<<(const ::std::wstring& wstr) {
internal::StreamWideCharsToMessage(wstr.c_str(), wstr.length(), this);
return *this;
}
#endif // GTEST_HAS_STD_WSTRING
// Gets the text streamed to this object so far as an std::string.
// Each '\0' character in the buffer is replaced with "\\0".
std::string Message::GetString() const {
return internal::StringStreamToString(ss_.get());
}
namespace internal {
namespace edit_distance {
std::vector<EditType> CalculateOptimalEdits(const std::vector<size_t>& left,
const std::vector<size_t>& right) {
std::vector<std::vector<double> > costs(
left.size() + 1, std::vector<double>(right.size() + 1));
std::vector<std::vector<EditType> > best_move(
left.size() + 1, std::vector<EditType>(right.size() + 1));
// Populate for empty right.
for (size_t l_i = 0; l_i < costs.size(); ++l_i) {
costs[l_i][0] = static_cast<double>(l_i);
best_move[l_i][0] = kRemove;
}
// Populate for empty left.
for (size_t r_i = 1; r_i < costs[0].size(); ++r_i) {
costs[0][r_i] = static_cast<double>(r_i);
best_move[0][r_i] = kAdd;
}
for (size_t l_i = 0; l_i < left.size(); ++l_i) {
for (size_t r_i = 0; r_i < right.size(); ++r_i) {
if (left[l_i] == right[r_i]) {
// Found a match. Consume it.
costs[l_i + 1][r_i + 1] = costs[l_i][r_i];
best_move[l_i + 1][r_i + 1] = kMatch;
continue;
}
const double add = costs[l_i + 1][r_i];
const double remove = costs[l_i][r_i + 1];
const double replace = costs[l_i][r_i];
if (add < remove && add < replace) {
costs[l_i + 1][r_i + 1] = add + 1;
best_move[l_i + 1][r_i + 1] = kAdd;
} else if (remove < add && remove < replace) {
costs[l_i + 1][r_i + 1] = remove + 1;
best_move[l_i + 1][r_i + 1] = kRemove;
} else {
// We make replace a little more expensive than add/remove to lower
// their priority.
costs[l_i + 1][r_i + 1] = replace + 1.00001;
best_move[l_i + 1][r_i + 1] = kReplace;
}
}
}
// Reconstruct the best path. We do it in reverse order.
std::vector<EditType> best_path;
for (size_t l_i = left.size(), r_i = right.size(); l_i > 0 || r_i > 0;) {
EditType move = best_move[l_i][r_i];
best_path.push_back(move);
l_i -= move != kAdd;
r_i -= move != kRemove;
}
std::reverse(best_path.begin(), best_path.end());
return best_path;
}
namespace {
// Helper class to convert string into ids with deduplication.
class InternalStrings {
public:
size_t GetId(const std::string& str) {
IdMap::iterator it = ids_.find(str);
if (it != ids_.end()) return it->second;
size_t id = ids_.size();
return ids_[str] = id;
}
private:
typedef std::map<std::string, size_t> IdMap;
IdMap ids_;
};
} // namespace
std::vector<EditType> CalculateOptimalEdits(
const std::vector<std::string>& left,
const std::vector<std::string>& right) {
std::vector<size_t> left_ids, right_ids;
{
InternalStrings intern_table;
for (size_t i = 0; i < left.size(); ++i) {
left_ids.push_back(intern_table.GetId(left[i]));
}
for (size_t i = 0; i < right.size(); ++i) {
right_ids.push_back(intern_table.GetId(right[i]));
}
}
return CalculateOptimalEdits(left_ids, right_ids);
}
namespace {
// Helper class that holds the state for one hunk and prints it out to the
// stream.
// It reorders adds/removes when possible to group all removes before all
// adds. It also adds the hunk header before printint into the stream.
class Hunk {
public:
Hunk(size_t left_start, size_t right_start)
: left_start_(left_start),
right_start_(right_start),
adds_(),
removes_(),
common_() {}
void PushLine(char edit, const char* line) {
switch (edit) {
case ' ':
++common_;
FlushEdits();
hunk_.push_back(std::make_pair(' ', line));
break;
case '-':
++removes_;
hunk_removes_.push_back(std::make_pair('-', line));
break;
case '+':
++adds_;
hunk_adds_.push_back(std::make_pair('+', line));
break;
}
}
void PrintTo(std::ostream* os) {
PrintHeader(os);
FlushEdits();
for (std::list<std::pair<char, const char*> >::const_iterator it =
hunk_.begin();
it != hunk_.end(); ++it) {
*os << it->first << it->second << "\n";
}
}
bool has_edits() const { return adds_ || removes_; }
private:
void FlushEdits() {
hunk_.splice(hunk_.end(), hunk_removes_);
hunk_.splice(hunk_.end(), hunk_adds_);
}
// Print a unified diff header for one hunk.
// The format is
// "@@ -<left_start>,<left_length> +<right_start>,<right_length> @@"
// where the left/right parts are omitted if unnecessary.
void PrintHeader(std::ostream* ss) const {
*ss << "@@ ";
if (removes_) {
*ss << "-" << left_start_ << "," << (removes_ + common_);
}
if (removes_ && adds_) {
*ss << " ";
}
if (adds_) {
*ss << "+" << right_start_ << "," << (adds_ + common_);
}
*ss << " @@\n";
}
size_t left_start_, right_start_;
size_t adds_, removes_, common_;
std::list<std::pair<char, const char*> > hunk_, hunk_adds_, hunk_removes_;
};
} // namespace
// Create a list of diff hunks in Unified diff format.
// Each hunk has a header generated by PrintHeader above plus a body with
// lines prefixed with ' ' for no change, '-' for deletion and '+' for
// addition.
// 'context' represents the desired unchanged prefix/suffix around the diff.
// If two hunks are close enough that their contexts overlap, then they are
// joined into one hunk.
std::string CreateUnifiedDiff(const std::vector<std::string>& left,
const std::vector<std::string>& right,
size_t context) {
const std::vector<EditType> edits = CalculateOptimalEdits(left, right);
size_t l_i = 0, r_i = 0, edit_i = 0;
std::stringstream ss;
while (edit_i < edits.size()) {
// Find first edit.
while (edit_i < edits.size() && edits[edit_i] == kMatch) {
++l_i;
++r_i;
++edit_i;
}
// Find the first line to include in the hunk.
const size_t prefix_context = std::min(l_i, context);
Hunk hunk(l_i - prefix_context + 1, r_i - prefix_context + 1);
for (size_t i = prefix_context; i > 0; --i) {
hunk.PushLine(' ', left[l_i - i].c_str());
}
// Iterate the edits until we found enough suffix for the hunk or the input
// is over.
size_t n_suffix = 0;
for (; edit_i < edits.size(); ++edit_i) {
if (n_suffix >= context) {
// Continue only if the next hunk is very close.
auto it = edits.begin() + static_cast<int>(edit_i);
while (it != edits.end() && *it == kMatch) ++it;
if (it == edits.end() ||
static_cast<size_t>(it - edits.begin()) - edit_i >= context) {
// There is no next edit or it is too far away.
break;
}
}
EditType edit = edits[edit_i];
// Reset count when a non match is found.
n_suffix = edit == kMatch ? n_suffix + 1 : 0;
if (edit == kMatch || edit == kRemove || edit == kReplace) {
hunk.PushLine(edit == kMatch ? ' ' : '-', left[l_i].c_str());
}
if (edit == kAdd || edit == kReplace) {
hunk.PushLine('+', right[r_i].c_str());
}
// Advance indices, depending on edit type.
l_i += edit != kAdd;
r_i += edit != kRemove;
}
if (!hunk.has_edits()) {
// We are done. We don't want this hunk.
break;
}
hunk.PrintTo(&ss);
}
return ss.str();
}
} // namespace edit_distance
namespace {
// The string representation of the values received in EqFailure() are already
// escaped. Split them on escaped '\n' boundaries. Leave all other escaped
// characters the same.
std::vector<std::string> SplitEscapedString(const std::string& str) {
std::vector<std::string> lines;
size_t start = 0, end = str.size();
if (end > 2 && str[0] == '"' && str[end - 1] == '"') {
++start;
--end;
}
bool escaped = false;
for (size_t i = start; i + 1 < end; ++i) {
if (escaped) {
escaped = false;
if (str[i] == 'n') {
lines.push_back(str.substr(start, i - start - 1));
start = i + 1;
}
} else {
escaped = str[i] == '\\';
}
}
lines.push_back(str.substr(start, end - start));
return lines;
}
} // namespace
// Constructs and returns the message for an equality assertion
// (e.g. ASSERT_EQ, EXPECT_STREQ, etc) failure.
//
// The first four parameters are the expressions used in the assertion
// and their values, as strings. For example, for ASSERT_EQ(foo, bar)
// where foo is 5 and bar is 6, we have:
//
// lhs_expression: "foo"
// rhs_expression: "bar"
// lhs_value: "5"
// rhs_value: "6"
//
// The ignoring_case parameter is true if and only if the assertion is a
// *_STRCASEEQ*. When it's true, the string "Ignoring case" will
// be inserted into the message.
AssertionResult EqFailure(const char* lhs_expression,
const char* rhs_expression,
const std::string& lhs_value,
const std::string& rhs_value, bool ignoring_case) {
Message msg;
msg << "Expected equality of these values:";
msg << "\n " << lhs_expression;
if (lhs_value != lhs_expression) {
msg << "\n Which is: " << lhs_value;
}
msg << "\n " << rhs_expression;
if (rhs_value != rhs_expression) {
msg << "\n Which is: " << rhs_value;
}
if (ignoring_case) {
msg << "\nIgnoring case";
}
if (!lhs_value.empty() && !rhs_value.empty()) {
const std::vector<std::string> lhs_lines = SplitEscapedString(lhs_value);
const std::vector<std::string> rhs_lines = SplitEscapedString(rhs_value);
if (lhs_lines.size() > 1 || rhs_lines.size() > 1) {
msg << "\nWith diff:\n"
<< edit_distance::CreateUnifiedDiff(lhs_lines, rhs_lines);
}
}
return AssertionFailure() << msg;
}
// Constructs a failure message for Boolean assertions such as EXPECT_TRUE.
std::string GetBoolAssertionFailureMessage(
const AssertionResult& assertion_result, const char* expression_text,
const char* actual_predicate_value, const char* expected_predicate_value) {
const char* actual_message = assertion_result.message();
Message msg;
msg << "Value of: " << expression_text
<< "\n Actual: " << actual_predicate_value;
if (actual_message[0] != '\0') msg << " (" << actual_message << ")";
msg << "\nExpected: " << expected_predicate_value;
return msg.GetString();
}
// Helper function for implementing ASSERT_NEAR.
AssertionResult DoubleNearPredFormat(const char* expr1, const char* expr2,
const char* abs_error_expr, double val1,
double val2, double abs_error) {
const double diff = fabs(val1 - val2);
if (diff <= abs_error) return AssertionSuccess();
// Find the value which is closest to zero.
const double min_abs = std::min(fabs(val1), fabs(val2));
// Find the distance to the next double from that value.
const double epsilon =
nextafter(min_abs, std::numeric_limits<double>::infinity()) - min_abs;
// Detect the case where abs_error is so small that EXPECT_NEAR is
// effectively the same as EXPECT_EQUAL, and give an informative error
// message so that the situation can be more easily understood without
// requiring exotic floating-point knowledge.
// Don't do an epsilon check if abs_error is zero because that implies
// that an equality check was actually intended.
if (!(std::isnan)(val1) && !(std::isnan)(val2) && abs_error > 0 &&
abs_error < epsilon) {
return AssertionFailure()
<< "The difference between " << expr1 << " and " << expr2 << " is "
<< diff << ", where\n"
<< expr1 << " evaluates to " << val1 << ",\n"
<< expr2 << " evaluates to " << val2 << ".\nThe abs_error parameter "
<< abs_error_expr << " evaluates to " << abs_error
<< " which is smaller than the minimum distance between doubles for "
"numbers of this magnitude which is "
<< epsilon
<< ", thus making this EXPECT_NEAR check equivalent to "
"EXPECT_EQUAL. Consider using EXPECT_DOUBLE_EQ instead.";
}
return AssertionFailure()
<< "The difference between " << expr1 << " and " << expr2 << " is "
<< diff << ", which exceeds " << abs_error_expr << ", where\n"
<< expr1 << " evaluates to " << val1 << ",\n"
<< expr2 << " evaluates to " << val2 << ", and\n"
<< abs_error_expr << " evaluates to " << abs_error << ".";
}
// Helper template for implementing FloatLE() and DoubleLE().
template <typename RawType>
AssertionResult FloatingPointLE(const char* expr1, const char* expr2,
RawType val1, RawType val2) {
// Returns success if val1 is less than val2,
if (val1 < val2) {
return AssertionSuccess();
}
// or if val1 is almost equal to val2.
const FloatingPoint<RawType> lhs(val1), rhs(val2);
if (lhs.AlmostEquals(rhs)) {
return AssertionSuccess();
}
// Note that the above two checks will both fail if either val1 or
// val2 is NaN, as the IEEE floating-point standard requires that
// any predicate involving a NaN must return false.
::std::stringstream val1_ss;
val1_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val1;
::std::stringstream val2_ss;
val2_ss << std::setprecision(std::numeric_limits<RawType>::digits10 + 2)
<< val2;
return AssertionFailure()
<< "Expected: (" << expr1 << ") <= (" << expr2 << ")\n"
<< " Actual: " << StringStreamToString(&val1_ss) << " vs "
<< StringStreamToString(&val2_ss);
}
} // namespace internal
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult FloatLE(const char* expr1, const char* expr2, float val1,
float val2) {
return internal::FloatingPointLE<float>(expr1, expr2, val1, val2);
}
// Asserts that val1 is less than, or almost equal to, val2. Fails
// otherwise. In particular, it fails if either val1 or val2 is NaN.
AssertionResult DoubleLE(const char* expr1, const char* expr2, double val1,
double val2) {
return internal::FloatingPointLE<double>(expr1, expr2, val1, val2);
}
namespace internal {
// The helper function for {ASSERT|EXPECT}_STREQ.
AssertionResult CmpHelperSTREQ(const char* lhs_expression,
const char* rhs_expression, const char* lhs,
const char* rhs) {
if (String::CStringEquals(lhs, rhs)) {
return AssertionSuccess();
}
return EqFailure(lhs_expression, rhs_expression, PrintToString(lhs),
PrintToString(rhs), false);
}
// The helper function for {ASSERT|EXPECT}_STRCASEEQ.
AssertionResult CmpHelperSTRCASEEQ(const char* lhs_expression,
const char* rhs_expression, const char* lhs,
const char* rhs) {
if (String::CaseInsensitiveCStringEquals(lhs, rhs)) {
return AssertionSuccess();
}
return EqFailure(lhs_expression, rhs_expression, PrintToString(lhs),
PrintToString(rhs), true);
}
// The helper function for {ASSERT|EXPECT}_STRNE.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression, const char* s1,
const char* s2) {
if (!String::CStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
return AssertionFailure()
<< "Expected: (" << s1_expression << ") != (" << s2_expression
<< "), actual: \"" << s1 << "\" vs \"" << s2 << "\"";
}
}
// The helper function for {ASSERT|EXPECT}_STRCASENE.
AssertionResult CmpHelperSTRCASENE(const char* s1_expression,
const char* s2_expression, const char* s1,
const char* s2) {
if (!String::CaseInsensitiveCStringEquals(s1, s2)) {
return AssertionSuccess();
} else {
return AssertionFailure()
<< "Expected: (" << s1_expression << ") != (" << s2_expression
<< ") (ignoring case), actual: \"" << s1 << "\" vs \"" << s2 << "\"";
}
}
} // namespace internal
namespace {
// Helper functions for implementing IsSubString() and IsNotSubstring().
// This group of overloaded functions return true if and only if needle
// is a substring of haystack. NULL is considered a substring of
// itself only.
bool IsSubstringPred(const char* needle, const char* haystack) {
if (needle == nullptr || haystack == nullptr) return needle == haystack;
return strstr(haystack, needle) != nullptr;
}
bool IsSubstringPred(const wchar_t* needle, const wchar_t* haystack) {
if (needle == nullptr || haystack == nullptr) return needle == haystack;
return wcsstr(haystack, needle) != nullptr;
}
// StringType here can be either ::std::string or ::std::wstring.
template <typename StringType>
bool IsSubstringPred(const StringType& needle, const StringType& haystack) {
return haystack.find(needle) != StringType::npos;
}
// This function implements either IsSubstring() or IsNotSubstring(),
// depending on the value of the expected_to_be_substring parameter.
// StringType here can be const char*, const wchar_t*, ::std::string,
// or ::std::wstring.
template <typename StringType>
AssertionResult IsSubstringImpl(bool expected_to_be_substring,
const char* needle_expr,
const char* haystack_expr,
const StringType& needle,
const StringType& haystack) {
if (IsSubstringPred(needle, haystack) == expected_to_be_substring)
return AssertionSuccess();
const bool is_wide_string = sizeof(needle[0]) > 1;
const char* const begin_string_quote = is_wide_string ? "L\"" : "\"";
return AssertionFailure()
<< "Value of: " << needle_expr << "\n"
<< " Actual: " << begin_string_quote << needle << "\"\n"
<< "Expected: " << (expected_to_be_substring ? "" : "not ")
<< "a substring of " << haystack_expr << "\n"
<< "Which is: " << begin_string_quote << haystack << "\"";
}
} // namespace
// IsSubstring() and IsNotSubstring() check whether needle is a
// substring of haystack (NULL is considered a substring of itself
// only), and return an appropriate error message when they fail.
AssertionResult IsSubstring(const char* needle_expr, const char* haystack_expr,
const char* needle, const char* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsSubstring(const char* needle_expr, const char* haystack_expr,
const wchar_t* needle, const wchar_t* haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(const char* needle_expr,
const char* haystack_expr, const char* needle,
const char* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(const char* needle_expr,
const char* haystack_expr, const wchar_t* needle,
const wchar_t* haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsSubstring(const char* needle_expr, const char* haystack_expr,
const ::std::string& needle,
const ::std::string& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(const char* needle_expr,
const char* haystack_expr,
const ::std::string& needle,
const ::std::string& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#if GTEST_HAS_STD_WSTRING
AssertionResult IsSubstring(const char* needle_expr, const char* haystack_expr,
const ::std::wstring& needle,
const ::std::wstring& haystack) {
return IsSubstringImpl(true, needle_expr, haystack_expr, needle, haystack);
}
AssertionResult IsNotSubstring(const char* needle_expr,
const char* haystack_expr,
const ::std::wstring& needle,
const ::std::wstring& haystack) {
return IsSubstringImpl(false, needle_expr, haystack_expr, needle, haystack);
}
#endif // GTEST_HAS_STD_WSTRING
namespace internal {
#if GTEST_OS_WINDOWS
namespace {
// Helper function for IsHRESULT{SuccessFailure} predicates
AssertionResult HRESULTFailureHelper(const char* expr, const char* expected,
long hr) { // NOLINT
#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_WINDOWS_TV_TITLE
// Windows CE doesn't support FormatMessage.
const char error_text[] = "";
#else
// Looks up the human-readable system message for the HRESULT code
// and since we're not passing any params to FormatMessage, we don't
// want inserts expanded.
const DWORD kFlags =
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS;
const DWORD kBufSize = 4096;
// Gets the system's human readable message string for this HRESULT.
char error_text[kBufSize] = {'\0'};
DWORD message_length = ::FormatMessageA(kFlags,
0, // no source, we're asking system
static_cast<DWORD>(hr), // the error
0, // no line width restrictions
error_text, // output buffer
kBufSize, // buf size
nullptr); // no arguments for inserts
// Trims tailing white space (FormatMessage leaves a trailing CR-LF)
for (; message_length && IsSpace(error_text[message_length - 1]);
--message_length) {
error_text[message_length - 1] = '\0';
}
#endif // GTEST_OS_WINDOWS_MOBILE
const std::string error_hex("0x" + String::FormatHexInt(hr));
return ::testing::AssertionFailure()
<< "Expected: " << expr << " " << expected << ".\n"
<< " Actual: " << error_hex << " " << error_text << "\n";
}
} // namespace
AssertionResult IsHRESULTSuccess(const char* expr, long hr) { // NOLINT
if (SUCCEEDED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "succeeds", hr);
}
AssertionResult IsHRESULTFailure(const char* expr, long hr) { // NOLINT
if (FAILED(hr)) {
return AssertionSuccess();
}
return HRESULTFailureHelper(expr, "fails", hr);
}
#endif // GTEST_OS_WINDOWS
// Utility functions for encoding Unicode text (wide strings) in
// UTF-8.
// A Unicode code-point can have up to 21 bits, and is encoded in UTF-8
// like this:
//
// Code-point length Encoding
// 0 - 7 bits 0xxxxxxx
// 8 - 11 bits 110xxxxx 10xxxxxx
// 12 - 16 bits 1110xxxx 10xxxxxx 10xxxxxx
// 17 - 21 bits 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
// The maximum code-point a one-byte UTF-8 sequence can represent.
constexpr uint32_t kMaxCodePoint1 = (static_cast<uint32_t>(1) << 7) - 1;
// The maximum code-point a two-byte UTF-8 sequence can represent.
constexpr uint32_t kMaxCodePoint2 = (static_cast<uint32_t>(1) << (5 + 6)) - 1;
// The maximum code-point a three-byte UTF-8 sequence can represent.
constexpr uint32_t kMaxCodePoint3 =
(static_cast<uint32_t>(1) << (4 + 2 * 6)) - 1;
// The maximum code-point a four-byte UTF-8 sequence can represent.
constexpr uint32_t kMaxCodePoint4 =
(static_cast<uint32_t>(1) << (3 + 3 * 6)) - 1;
// Chops off the n lowest bits from a bit pattern. Returns the n
// lowest bits. As a side effect, the original bit pattern will be
// shifted to the right by n bits.
inline uint32_t ChopLowBits(uint32_t* bits, int n) {
const uint32_t low_bits = *bits & ((static_cast<uint32_t>(1) << n) - 1);
*bits >>= n;
return low_bits;
}
// Converts a Unicode code point to a narrow string in UTF-8 encoding.
// code_point parameter is of type uint32_t because wchar_t may not be
// wide enough to contain a code point.
// If the code_point is not a valid Unicode code point
// (i.e. outside of Unicode range U+0 to U+10FFFF) it will be converted
// to "(Invalid Unicode 0xXXXXXXXX)".
std::string CodePointToUtf8(uint32_t code_point) {
if (code_point > kMaxCodePoint4) {
return "(Invalid Unicode 0x" + String::FormatHexUInt32(code_point) + ")";
}
char str[5]; // Big enough for the largest valid code point.
if (code_point <= kMaxCodePoint1) {
str[1] = '\0';
str[0] = static_cast<char>(code_point); // 0xxxxxxx
} else if (code_point <= kMaxCodePoint2) {
str[2] = '\0';
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xC0 | code_point); // 110xxxxx
} else if (code_point <= kMaxCodePoint3) {
str[3] = '\0';
str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xE0 | code_point); // 1110xxxx
} else { // code_point <= kMaxCodePoint4
str[4] = '\0';
str[3] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[2] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[1] = static_cast<char>(0x80 | ChopLowBits(&code_point, 6)); // 10xxxxxx
str[0] = static_cast<char>(0xF0 | code_point); // 11110xxx
}
return str;
}
// The following two functions only make sense if the system
// uses UTF-16 for wide string encoding. All supported systems
// with 16 bit wchar_t (Windows, Cygwin) do use UTF-16.
// Determines if the arguments constitute UTF-16 surrogate pair
// and thus should be combined into a single Unicode code point
// using CreateCodePointFromUtf16SurrogatePair.
inline bool IsUtf16SurrogatePair(wchar_t first, wchar_t second) {
return sizeof(wchar_t) == 2 && (first & 0xFC00) == 0xD800 &&
(second & 0xFC00) == 0xDC00;
}
// Creates a Unicode code point from UTF16 surrogate pair.
inline uint32_t CreateCodePointFromUtf16SurrogatePair(wchar_t first,
wchar_t second) {
const auto first_u = static_cast<uint32_t>(first);
const auto second_u = static_cast<uint32_t>(second);
const uint32_t mask = (1 << 10) - 1;
return (sizeof(wchar_t) == 2)
? (((first_u & mask) << 10) | (second_u & mask)) + 0x10000
:
// This function should not be called when the condition is
// false, but we provide a sensible default in case it is.
first_u;
}
// Converts a wide string to a narrow string in UTF-8 encoding.
// The wide string is assumed to have the following encoding:
// UTF-16 if sizeof(wchar_t) == 2 (on Windows, Cygwin)
// UTF-32 if sizeof(wchar_t) == 4 (on Linux)
// Parameter str points to a null-terminated wide string.
// Parameter num_chars may additionally limit the number
// of wchar_t characters processed. -1 is used when the entire string
// should be processed.
// If the string contains code points that are not valid Unicode code points
// (i.e. outside of Unicode range U+0 to U+10FFFF) they will be output
// as '(Invalid Unicode 0xXXXXXXXX)'. If the string is in UTF16 encoding
// and contains invalid UTF-16 surrogate pairs, values in those pairs
// will be encoded as individual Unicode characters from Basic Normal Plane.
std::string WideStringToUtf8(const wchar_t* str, int num_chars) {
if (num_chars == -1) num_chars = static_cast<int>(wcslen(str));
::std::stringstream stream;
for (int i = 0; i < num_chars; ++i) {
uint32_t unicode_code_point;
if (str[i] == L'\0') {
break;
} else if (i + 1 < num_chars && IsUtf16SurrogatePair(str[i], str[i + 1])) {
unicode_code_point =
CreateCodePointFromUtf16SurrogatePair(str[i], str[i + 1]);
i++;
} else {
unicode_code_point = static_cast<uint32_t>(str[i]);
}
stream << CodePointToUtf8(unicode_code_point);
}
return StringStreamToString(&stream);
}
// Converts a wide C string to an std::string using the UTF-8 encoding.
// NULL will be converted to "(null)".
std::string String::ShowWideCString(const wchar_t* wide_c_str) {
if (wide_c_str == nullptr) return "(null)";
return internal::WideStringToUtf8(wide_c_str, -1);
}
// Compares two wide C strings. Returns true if and only if they have the
// same content.
//
// Unlike wcscmp(), this function can handle NULL argument(s). A NULL
// C string is considered different to any non-NULL C string,
// including the empty string.
bool String::WideCStringEquals(const wchar_t* lhs, const wchar_t* rhs) {
if (lhs == nullptr) return rhs == nullptr;
if (rhs == nullptr) return false;
return wcscmp(lhs, rhs) == 0;
}
// Helper function for *_STREQ on wide strings.
AssertionResult CmpHelperSTREQ(const char* lhs_expression,
const char* rhs_expression, const wchar_t* lhs,
const wchar_t* rhs) {
if (String::WideCStringEquals(lhs, rhs)) {
return AssertionSuccess();
}
return EqFailure(lhs_expression, rhs_expression, PrintToString(lhs),
PrintToString(rhs), false);
}
// Helper function for *_STRNE on wide strings.
AssertionResult CmpHelperSTRNE(const char* s1_expression,
const char* s2_expression, const wchar_t* s1,
const wchar_t* s2) {
if (!String::WideCStringEquals(s1, s2)) {
return AssertionSuccess();
}
return AssertionFailure()
<< "Expected: (" << s1_expression << ") != (" << s2_expression
<< "), actual: " << PrintToString(s1) << " vs " << PrintToString(s2);
}
// Compares two C strings, ignoring case. Returns true if and only if they have
// the same content.
//
// Unlike strcasecmp(), this function can handle NULL argument(s). A
// NULL C string is considered different to any non-NULL C string,
// including the empty string.
bool String::CaseInsensitiveCStringEquals(const char* lhs, const char* rhs) {
if (lhs == nullptr) return rhs == nullptr;
if (rhs == nullptr) return false;
return posix::StrCaseCmp(lhs, rhs) == 0;
}
// Compares two wide C strings, ignoring case. Returns true if and only if they
// have the same content.
//
// Unlike wcscasecmp(), this function can handle NULL argument(s).
// A NULL C string is considered different to any non-NULL wide C string,
// including the empty string.
// NB: The implementations on different platforms slightly differ.
// On windows, this method uses _wcsicmp which compares according to LC_CTYPE
// environment variable. On GNU platform this method uses wcscasecmp
// which compares according to LC_CTYPE category of the current locale.
// On MacOS X, it uses towlower, which also uses LC_CTYPE category of the
// current locale.
bool String::CaseInsensitiveWideCStringEquals(const wchar_t* lhs,
const wchar_t* rhs) {
if (lhs == nullptr) return rhs == nullptr;
if (rhs == nullptr) return false;
#if GTEST_OS_WINDOWS
return _wcsicmp(lhs, rhs) == 0;
#elif GTEST_OS_LINUX && !GTEST_OS_LINUX_ANDROID
return wcscasecmp(lhs, rhs) == 0;
#else
// Android, Mac OS X and Cygwin don't define wcscasecmp.
// Other unknown OSes may not define it either.
wint_t left, right;
do {
left = towlower(static_cast<wint_t>(*lhs++));
right = towlower(static_cast<wint_t>(*rhs++));
} while (left && left == right);
return left == right;
#endif // OS selector
}
// Returns true if and only if str ends with the given suffix, ignoring case.
// Any string is considered to end with an empty suffix.
bool String::EndsWithCaseInsensitive(const std::string& str,
const std::string& suffix) {
const size_t str_len = str.length();
const size_t suffix_len = suffix.length();
return (str_len >= suffix_len) &&
CaseInsensitiveCStringEquals(str.c_str() + str_len - suffix_len,
suffix.c_str());
}
// Formats an int value as "%02d".
std::string String::FormatIntWidth2(int value) {
return FormatIntWidthN(value, 2);
}
// Formats an int value to given width with leading zeros.
std::string String::FormatIntWidthN(int value, int width) {
std::stringstream ss;
ss << std::setfill('0') << std::setw(width) << value;
return ss.str();
}
// Formats an int value as "%X".
std::string String::FormatHexUInt32(uint32_t value) {
std::stringstream ss;
ss << std::hex << std::uppercase << value;
return ss.str();
}
// Formats an int value as "%X".
std::string String::FormatHexInt(int value) {
return FormatHexUInt32(static_cast<uint32_t>(value));
}
// Formats a byte as "%02X".
std::string String::FormatByte(unsigned char value) {
std::stringstream ss;
ss << std::setfill('0') << std::setw(2) << std::hex << std::uppercase
<< static_cast<unsigned int>(value);
return ss.str();
}
// Converts the buffer in a stringstream to an std::string, converting NUL
// bytes to "\\0" along the way.
std::string StringStreamToString(::std::stringstream* ss) {
const ::std::string& str = ss->str();
const char* const start = str.c_str();
const char* const end = start + str.length();
std::string result;
result.reserve(static_cast<size_t>(2 * (end - start)));
for (const char* ch = start; ch != end; ++ch) {
if (*ch == '\0') {
result += "\\0"; // Replaces NUL with "\\0";
} else {
result += *ch;
}
}
return result;
}
// Appends the user-supplied message to the Google-Test-generated message.
std::string AppendUserMessage(const std::string& gtest_msg,
const Message& user_msg) {
// Appends the user message if it's non-empty.
const std::string user_msg_string = user_msg.GetString();
if (user_msg_string.empty()) {
return gtest_msg;
}
if (gtest_msg.empty()) {
return user_msg_string;
}
return gtest_msg + "\n" + user_msg_string;
}
} // namespace internal
// class TestResult
// Creates an empty TestResult.
TestResult::TestResult()
: death_test_count_(0), start_timestamp_(0), elapsed_time_(0) {}
// D'tor.
TestResult::~TestResult() {}
// Returns the i-th test part result among all the results. i can
// range from 0 to total_part_count() - 1. If i is not in that range,
// aborts the program.
const TestPartResult& TestResult::GetTestPartResult(int i) const {
if (i < 0 || i >= total_part_count()) internal::posix::Abort();
return test_part_results_.at(static_cast<size_t>(i));
}
// Returns the i-th test property. i can range from 0 to
// test_property_count() - 1. If i is not in that range, aborts the
// program.
const TestProperty& TestResult::GetTestProperty(int i) const {
if (i < 0 || i >= test_property_count()) internal::posix::Abort();
return test_properties_.at(static_cast<size_t>(i));
}
// Clears the test part results.
void TestResult::ClearTestPartResults() { test_part_results_.clear(); }
// Adds a test part result to the list.
void TestResult::AddTestPartResult(const TestPartResult& test_part_result) {
test_part_results_.push_back(test_part_result);
}
// Adds a test property to the list. If a property with the same key as the
// supplied property is already represented, the value of this test_property
// replaces the old value for that key.
void TestResult::RecordProperty(const std::string& xml_element,
const TestProperty& test_property) {
if (!ValidateTestProperty(xml_element, test_property)) {
return;
}
internal::MutexLock lock(&test_properties_mutex_);
const std::vector<TestProperty>::iterator property_with_matching_key =
std::find_if(test_properties_.begin(), test_properties_.end(),
internal::TestPropertyKeyIs(test_property.key()));
if (property_with_matching_key == test_properties_.end()) {
test_properties_.push_back(test_property);
return;
}
property_with_matching_key->SetValue(test_property.value());
}
// The list of reserved attributes used in the <testsuites> element of XML
// output.
static const char* const kReservedTestSuitesAttributes[] = {
"disabled", "errors", "failures", "name",
"random_seed", "tests", "time", "timestamp"};
// The list of reserved attributes used in the <testsuite> element of XML
// output.
static const char* const kReservedTestSuiteAttributes[] = {
"disabled", "errors", "failures", "name",
"tests", "time", "timestamp", "skipped"};
// The list of reserved attributes used in the <testcase> element of XML output.
static const char* const kReservedTestCaseAttributes[] = {
"classname", "name", "status", "time",
"type_param", "value_param", "file", "line"};
// Use a slightly different set for allowed output to ensure existing tests can
// still RecordProperty("result") or "RecordProperty(timestamp")
static const char* const kReservedOutputTestCaseAttributes[] = {
"classname", "name", "status", "time", "type_param",
"value_param", "file", "line", "result", "timestamp"};
template <size_t kSize>
std::vector<std::string> ArrayAsVector(const char* const (&array)[kSize]) {
return std::vector<std::string>(array, array + kSize);
}
static std::vector<std::string> GetReservedAttributesForElement(
const std::string& xml_element) {
if (xml_element == "testsuites") {
return ArrayAsVector(kReservedTestSuitesAttributes);
} else if (xml_element == "testsuite") {
return ArrayAsVector(kReservedTestSuiteAttributes);
} else if (xml_element == "testcase") {
return ArrayAsVector(kReservedTestCaseAttributes);
} else {
GTEST_CHECK_(false) << "Unrecognized xml_element provided: " << xml_element;
}
// This code is unreachable but some compilers may not realizes that.
return std::vector<std::string>();
}
// TODO(jdesprez): Merge the two getReserved attributes once skip is improved
static std::vector<std::string> GetReservedOutputAttributesForElement(
const std::string& xml_element) {
if (xml_element == "testsuites") {
return ArrayAsVector(kReservedTestSuitesAttributes);
} else if (xml_element == "testsuite") {
return ArrayAsVector(kReservedTestSuiteAttributes);
} else if (xml_element == "testcase") {
return ArrayAsVector(kReservedOutputTestCaseAttributes);
} else {
GTEST_CHECK_(false) << "Unrecognized xml_element provided: " << xml_element;
}
// This code is unreachable but some compilers may not realizes that.
return std::vector<std::string>();
}
static std::string FormatWordList(const std::vector<std::string>& words) {
Message word_list;
for (size_t i = 0; i < words.size(); ++i) {
if (i > 0 && words.size() > 2) {
word_list << ", ";
}
if (i == words.size() - 1) {
word_list << "and ";
}
word_list << "'" << words[i] << "'";
}
return word_list.GetString();
}
static bool ValidateTestPropertyName(
const std::string& property_name,
const std::vector<std::string>& reserved_names) {
if (std::find(reserved_names.begin(), reserved_names.end(), property_name) !=
reserved_names.end()) {
ADD_FAILURE() << "Reserved key used in RecordProperty(): " << property_name
<< " (" << FormatWordList(reserved_names)
<< " are reserved by " << GTEST_NAME_ << ")";
return false;
}
return true;
}
// Adds a failure if the key is a reserved attribute of the element named
// xml_element. Returns true if the property is valid.
bool TestResult::ValidateTestProperty(const std::string& xml_element,
const TestProperty& test_property) {
return ValidateTestPropertyName(test_property.key(),
GetReservedAttributesForElement(xml_element));
}
// Clears the object.
void TestResult::Clear() {
test_part_results_.clear();
test_properties_.clear();
death_test_count_ = 0;
elapsed_time_ = 0;
}
// Returns true off the test part was skipped.
static bool TestPartSkipped(const TestPartResult& result) {
return result.skipped();
}
// Returns true if and only if the test was skipped.
bool TestResult::Skipped() const {
return !Failed() && CountIf(test_part_results_, TestPartSkipped) > 0;
}
// Returns true if and only if the test failed.
bool TestResult::Failed() const {
for (int i = 0; i < total_part_count(); ++i) {
if (GetTestPartResult(i).failed()) return true;
}
return false;
}
// Returns true if and only if the test part fatally failed.
static bool TestPartFatallyFailed(const TestPartResult& result) {
return result.fatally_failed();
}
// Returns true if and only if the test fatally failed.
bool TestResult::HasFatalFailure() const {
return CountIf(test_part_results_, TestPartFatallyFailed) > 0;
}
// Returns true if and only if the test part non-fatally failed.
static bool TestPartNonfatallyFailed(const TestPartResult& result) {
return result.nonfatally_failed();
}
// Returns true if and only if the test has a non-fatal failure.
bool TestResult::HasNonfatalFailure() const {
return CountIf(test_part_results_, TestPartNonfatallyFailed) > 0;
}
// Gets the number of all test parts. This is the sum of the number
// of successful test parts and the number of failed test parts.
int TestResult::total_part_count() const {
return static_cast<int>(test_part_results_.size());
}
// Returns the number of the test properties.
int TestResult::test_property_count() const {
return static_cast<int>(test_properties_.size());
}
// class Test
// Creates a Test object.
// The c'tor saves the states of all flags.
Test::Test() : gtest_flag_saver_(new GTEST_FLAG_SAVER_) {}
// The d'tor restores the states of all flags. The actual work is
// done by the d'tor of the gtest_flag_saver_ field, and thus not
// visible here.
Test::~Test() {}
// Sets up the test fixture.
//
// A sub-class may override this.
void Test::SetUp() {}
// Tears down the test fixture.
//
// A sub-class may override this.
void Test::TearDown() {}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const std::string& key, const std::string& value) {
UnitTest::GetInstance()->RecordProperty(key, value);
}
// Allows user supplied key value pairs to be recorded for later output.
void Test::RecordProperty(const std::string& key, int value) {
Message value_message;
value_message << value;
RecordProperty(key, value_message.GetString().c_str());
}
namespace internal {
void ReportFailureInUnknownLocation(TestPartResult::Type result_type,
const std::string& message) {
// This function is a friend of UnitTest and as such has access to
// AddTestPartResult.
UnitTest::GetInstance()->AddTestPartResult(
result_type,
nullptr, // No info about the source file where the exception occurred.
-1, // We have no info on which line caused the exception.
message,
""); // No stack trace, either.
}
} // namespace internal
// Google Test requires all tests in the same test suite to use the same test
// fixture class. This function checks if the current test has the
// same fixture class as the first test in the current test suite. If
// yes, it returns true; otherwise it generates a Google Test failure and
// returns false.
bool Test::HasSameFixtureClass() {
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
const TestSuite* const test_suite = impl->current_test_suite();
// Info about the first test in the current test suite.
const TestInfo* const first_test_info = test_suite->test_info_list()[0];
const internal::TypeId first_fixture_id = first_test_info->fixture_class_id_;
const char* const first_test_name = first_test_info->name();
// Info about the current test.
const TestInfo* const this_test_info = impl->current_test_info();
const internal::TypeId this_fixture_id = this_test_info->fixture_class_id_;
const char* const this_test_name = this_test_info->name();
if (this_fixture_id != first_fixture_id) {
// Is the first test defined using TEST?
const bool first_is_TEST = first_fixture_id == internal::GetTestTypeId();
// Is this test defined using TEST?
const bool this_is_TEST = this_fixture_id == internal::GetTestTypeId();
if (first_is_TEST || this_is_TEST) {
// Both TEST and TEST_F appear in same test suite, which is incorrect.
// Tell the user how to fix this.
// Gets the name of the TEST and the name of the TEST_F. Note
// that first_is_TEST and this_is_TEST cannot both be true, as
// the fixture IDs are different for the two tests.
const char* const TEST_name =
first_is_TEST ? first_test_name : this_test_name;
const char* const TEST_F_name =
first_is_TEST ? this_test_name : first_test_name;
ADD_FAILURE()
<< "All tests in the same test suite must use the same test fixture\n"
<< "class, so mixing TEST_F and TEST in the same test suite is\n"
<< "illegal. In test suite " << this_test_info->test_suite_name()
<< ",\n"
<< "test " << TEST_F_name << " is defined using TEST_F but\n"
<< "test " << TEST_name << " is defined using TEST. You probably\n"
<< "want to change the TEST to TEST_F or move it to another test\n"
<< "case.";
} else {
// Two fixture classes with the same name appear in two different
// namespaces, which is not allowed. Tell the user how to fix this.
ADD_FAILURE()
<< "All tests in the same test suite must use the same test fixture\n"
<< "class. However, in test suite "
<< this_test_info->test_suite_name() << ",\n"
<< "you defined test " << first_test_name << " and test "
<< this_test_name << "\n"
<< "using two different test fixture classes. This can happen if\n"
<< "the two classes are from different namespaces or translation\n"
<< "units and have the same name. You should probably rename one\n"
<< "of the classes to put the tests into different test suites.";
}
return false;
}
return true;
}
#if GTEST_HAS_SEH
// Adds an "exception thrown" fatal failure to the current test. This
// function returns its result via an output parameter pointer because VC++
// prohibits creation of objects with destructors on stack in functions
// using __try (see error C2712).
static std::string* FormatSehExceptionMessage(DWORD exception_code,
const char* location) {
Message message;
message << "SEH exception with code 0x" << std::setbase(16) << exception_code
<< std::setbase(10) << " thrown in " << location << ".";
return new std::string(message.GetString());
}
#endif // GTEST_HAS_SEH
namespace internal {
#if GTEST_HAS_EXCEPTIONS
// Adds an "exception thrown" fatal failure to the current test.
static std::string FormatCxxExceptionMessage(const char* description,
const char* location) {
Message message;
if (description != nullptr) {
message << "C++ exception with description \"" << description << "\"";
} else {
message << "Unknown C++ exception";
}
message << " thrown in " << location << ".";
return message.GetString();
}
static std::string PrintTestPartResultToString(
const TestPartResult& test_part_result);
GoogleTestFailureException::GoogleTestFailureException(
const TestPartResult& failure)
: ::std::runtime_error(PrintTestPartResultToString(failure).c_str()) {}
#endif // GTEST_HAS_EXCEPTIONS
// We put these helper functions in the internal namespace as IBM's xlC
// compiler rejects the code if they were declared static.
// Runs the given method and handles SEH exceptions it throws, when
// SEH is supported; returns the 0-value for type Result in case of an
// SEH exception. (Microsoft compilers cannot handle SEH and C++
// exceptions in the same function. Therefore, we provide a separate
// wrapper function for handling SEH exceptions.)
template <class T, typename Result>
Result HandleSehExceptionsInMethodIfSupported(T* object, Result (T::*method)(),
const char* location) {
#if GTEST_HAS_SEH
__try {
return (object->*method)();
} __except (internal::UnitTestOptions::GTestShouldProcessSEH( // NOLINT
GetExceptionCode())) {
// We create the exception message on the heap because VC++ prohibits
// creation of objects with destructors on stack in functions using __try
// (see error C2712).
std::string* exception_message =
FormatSehExceptionMessage(GetExceptionCode(), location);
internal::ReportFailureInUnknownLocation(TestPartResult::kFatalFailure,
*exception_message);
delete exception_message;
return static_cast<Result>(0);
}
#else
(void)location;
return (object->*method)();
#endif // GTEST_HAS_SEH
}
// Runs the given method and catches and reports C++ and/or SEH-style
// exceptions, if they are supported; returns the 0-value for type
// Result in case of an SEH exception.
template <class T, typename Result>
Result HandleExceptionsInMethodIfSupported(T* object, Result (T::*method)(),
const char* location) {
// NOTE: The user code can affect the way in which Google Test handles
// exceptions by setting GTEST_FLAG(catch_exceptions), but only before
// RUN_ALL_TESTS() starts. It is technically possible to check the flag
// after the exception is caught and either report or re-throw the
// exception based on the flag's value:
//
// try {
// // Perform the test method.
// } catch (...) {
// if (GTEST_FLAG_GET(catch_exceptions))
// // Report the exception as failure.
// else
// throw; // Re-throws the original exception.
// }
//
// However, the purpose of this flag is to allow the program to drop into
// the debugger when the exception is thrown. On most platforms, once the
// control enters the catch block, the exception origin information is
// lost and the debugger will stop the program at the point of the
// re-throw in this function -- instead of at the point of the original
// throw statement in the code under test. For this reason, we perform
// the check early, sacrificing the ability to affect Google Test's
// exception handling in the method where the exception is thrown.
if (internal::GetUnitTestImpl()->catch_exceptions()) {
#if GTEST_HAS_EXCEPTIONS
try {
return HandleSehExceptionsInMethodIfSupported(object, method, location);
} catch (const AssertionException&) { // NOLINT
// This failure was reported already.
} catch (const internal::GoogleTestFailureException&) { // NOLINT
// This exception type can only be thrown by a failed Google
// Test assertion with the intention of letting another testing
// framework catch it. Therefore we just re-throw it.
throw;
} catch (const std::exception& e) { // NOLINT
internal::ReportFailureInUnknownLocation(
TestPartResult::kFatalFailure,
FormatCxxExceptionMessage(e.what(), location));
} catch (...) { // NOLINT
internal::ReportFailureInUnknownLocation(
TestPartResult::kFatalFailure,
FormatCxxExceptionMessage(nullptr, location));
}
return static_cast<Result>(0);
#else
return HandleSehExceptionsInMethodIfSupported(object, method, location);
#endif // GTEST_HAS_EXCEPTIONS
} else {
return (object->*method)();
}
}
} // namespace internal
// Runs the test and updates the test result.
void Test::Run() {
if (!HasSameFixtureClass()) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->os_stack_trace_getter()->UponLeavingGTest();
internal::HandleExceptionsInMethodIfSupported(this, &Test::SetUp, "SetUp()");
// We will run the test only if SetUp() was successful and didn't call
// GTEST_SKIP().
if (!HasFatalFailure() && !IsSkipped()) {
impl->os_stack_trace_getter()->UponLeavingGTest();
internal::HandleExceptionsInMethodIfSupported(this, &Test::TestBody,
"the test body");
}
// However, we want to clean up as much as possible. Hence we will
// always call TearDown(), even if SetUp() or the test body has
// failed.
impl->os_stack_trace_getter()->UponLeavingGTest();
internal::HandleExceptionsInMethodIfSupported(this, &Test::TearDown,
"TearDown()");
}
// Returns true if and only if the current test has a fatal failure.
bool Test::HasFatalFailure() {
return internal::GetUnitTestImpl()->current_test_result()->HasFatalFailure();
}
// Returns true if and only if the current test has a non-fatal failure.
bool Test::HasNonfatalFailure() {
return internal::GetUnitTestImpl()
->current_test_result()
->HasNonfatalFailure();
}
// Returns true if and only if the current test was skipped.
bool Test::IsSkipped() {
return internal::GetUnitTestImpl()->current_test_result()->Skipped();
}
// class TestInfo
// Constructs a TestInfo object. It assumes ownership of the test factory
// object.
TestInfo::TestInfo(const std::string& a_test_suite_name,
const std::string& a_name, const char* a_type_param,
const char* a_value_param,
internal::CodeLocation a_code_location,
internal::TypeId fixture_class_id,
internal::TestFactoryBase* factory)
: test_suite_name_(a_test_suite_name),
name_(a_name),
type_param_(a_type_param ? new std::string(a_type_param) : nullptr),
value_param_(a_value_param ? new std::string(a_value_param) : nullptr),
location_(a_code_location),
fixture_class_id_(fixture_class_id),
should_run_(false),
is_disabled_(false),
matches_filter_(false),
is_in_another_shard_(false),
factory_(factory),
result_() {}
// Destructs a TestInfo object.
TestInfo::~TestInfo() { delete factory_; }
namespace internal {
// Creates a new TestInfo object and registers it with Google Test;
// returns the created object.
//
// Arguments:
//
// test_suite_name: name of the test suite
// name: name of the test
// type_param: the name of the test's type parameter, or NULL if
// this is not a typed or a type-parameterized test.
// value_param: text representation of the test's value parameter,
// or NULL if this is not a value-parameterized test.
// code_location: code location where the test is defined
// fixture_class_id: ID of the test fixture class
// set_up_tc: pointer to the function that sets up the test suite
// tear_down_tc: pointer to the function that tears down the test suite
// factory: pointer to the factory that creates a test object.
// The newly created TestInfo instance will assume
// ownership of the factory object.
TestInfo* MakeAndRegisterTestInfo(
const char* test_suite_name, const char* name, const char* type_param,
const char* value_param, CodeLocation code_location,
TypeId fixture_class_id, SetUpTestSuiteFunc set_up_tc,
TearDownTestSuiteFunc tear_down_tc, TestFactoryBase* factory) {
TestInfo* const test_info =
new TestInfo(test_suite_name, name, type_param, value_param,
code_location, fixture_class_id, factory);
GetUnitTestImpl()->AddTestInfo(set_up_tc, tear_down_tc, test_info);
return test_info;
}
void ReportInvalidTestSuiteType(const char* test_suite_name,
CodeLocation code_location) {
Message errors;
errors
<< "Attempted redefinition of test suite " << test_suite_name << ".\n"
<< "All tests in the same test suite must use the same test fixture\n"
<< "class. However, in test suite " << test_suite_name << ", you tried\n"
<< "to define a test using a fixture class different from the one\n"
<< "used earlier. This can happen if the two fixture classes are\n"
<< "from different namespaces and have the same name. You should\n"
<< "probably rename one of the classes to put the tests into different\n"
<< "test suites.";
GTEST_LOG_(ERROR) << FormatFileLocation(code_location.file.c_str(),
code_location.line)
<< " " << errors.GetString();
}
} // namespace internal
namespace {
// A predicate that checks the test name of a TestInfo against a known
// value.
//
// This is used for implementation of the TestSuite class only. We put
// it in the anonymous namespace to prevent polluting the outer
// namespace.
//
// TestNameIs is copyable.
class TestNameIs {
public:
// Constructor.
//
// TestNameIs has NO default constructor.
explicit TestNameIs(const char* name) : name_(name) {}
// Returns true if and only if the test name of test_info matches name_.
bool operator()(const TestInfo* test_info) const {
return test_info && test_info->name() == name_;
}
private:
std::string name_;
};
} // namespace
namespace internal {
// This method expands all parameterized tests registered with macros TEST_P
// and INSTANTIATE_TEST_SUITE_P into regular tests and registers those.
// This will be done just once during the program runtime.
void UnitTestImpl::RegisterParameterizedTests() {
if (!parameterized_tests_registered_) {
parameterized_test_registry_.RegisterTests();
type_parameterized_test_registry_.CheckForInstantiations();
parameterized_tests_registered_ = true;
}
}
} // namespace internal
// Creates the test object, runs it, records its result, and then
// deletes it.
void TestInfo::Run() {
TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater();
if (!should_run_) {
if (is_disabled_ && matches_filter_) repeater->OnTestDisabled(*this);
return;
}
// Tells UnitTest where to store test result.
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_info(this);
// Notifies the unit test event listeners that a test is about to start.
repeater->OnTestStart(*this);
result_.set_start_timestamp(internal::GetTimeInMillis());
internal::Timer timer;
impl->os_stack_trace_getter()->UponLeavingGTest();
// Creates the test object.
Test* const test = internal::HandleExceptionsInMethodIfSupported(
factory_, &internal::TestFactoryBase::CreateTest,
"the test fixture's constructor");
// Runs the test if the constructor didn't generate a fatal failure or invoke
// GTEST_SKIP().
// Note that the object will not be null
if (!Test::HasFatalFailure() && !Test::IsSkipped()) {
// This doesn't throw as all user code that can throw are wrapped into
// exception handling code.
test->Run();
}
if (test != nullptr) {
// Deletes the test object.
impl->os_stack_trace_getter()->UponLeavingGTest();
internal::HandleExceptionsInMethodIfSupported(
test, &Test::DeleteSelf_, "the test fixture's destructor");
}
result_.set_elapsed_time(timer.Elapsed());
// Notifies the unit test event listener that a test has just finished.
repeater->OnTestEnd(*this);
// Tells UnitTest to stop associating assertion results to this
// test.
impl->set_current_test_info(nullptr);
}
// Skip and records a skipped test result for this object.
void TestInfo::Skip() {
if (!should_run_) return;
internal::UnitTestImpl* const impl = internal::GetUnitTestImpl();
impl->set_current_test_info(this);
TestEventListener* repeater = UnitTest::GetInstance()->listeners().repeater();
// Notifies the unit test event listeners that a test is about to start.
repeater->OnTestStart(*this);
const TestPartResult test_part_result =
TestPartResult(TestPartResult::kSkip, this->file(), this->line(), "");
impl->