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// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/bindings/testing/bindings_test_base.h"
#include "cobalt/bindings/testing/callback_function_interface.h"
#include "cobalt/bindings/testing/script_object_owner.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::ContainsRegex;
using ::testing::Invoke;
using ::testing::InSequence;
using ::testing::Return;
using ::testing::SaveArg;
using ::testing::_;
namespace cobalt {
namespace bindings {
namespace testing {
namespace {
typedef InterfaceBindingsTest<CallbackFunctionInterface> CallbackFunctionTest;
} // namespace
TEST_F(CallbackFunctionTest, ScriptCallbackCanBeCalledFromC) {
std::string result;
EXPECT_TRUE(EvaluateScript("var was_called = false;", NULL));
typedef CallbackFunctionInterface::VoidFunction FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesVoidFunction(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesVoidFunction(function() { was_called = true });", NULL));
ASSERT_TRUE(function_owner.IsSet());
FunctionType::ReturnValue value = function_owner.reference().value().Run();
ASSERT_FALSE(value.exception);
EXPECT_TRUE(EvaluateScript("was_called;", &result));
EXPECT_STREQ("true", result.c_str());
}
TEST_F(CallbackFunctionTest, ScriptCallbackWithReturnValue) {
typedef CallbackFunctionInterface::FunctionThatReturnsString FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesFunctionThatReturnsString(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesFunctionThatReturnsString(function() { return \"foo\"; });",
NULL));
ASSERT_TRUE(function_owner.IsSet());
FunctionType::ReturnValue value = function_owner.reference().value().Run();
ASSERT_FALSE(value.exception);
EXPECT_STREQ("foo", value.result.c_str());
}
TEST_F(CallbackFunctionTest, ScriptCallbackWithException) {
typedef CallbackFunctionInterface::FunctionThatReturnsString FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesFunctionThatReturnsString(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesFunctionThatReturnsString(function() { throw \"error\"; });",
NULL));
ASSERT_TRUE(function_owner.IsSet());
FunctionType::ReturnValue value = function_owner.reference().value().Run();
ASSERT_TRUE(value.exception);
}
TEST_F(CallbackFunctionTest, ScriptFunctionIsNotGarbageCollected) {
std::string result;
EXPECT_TRUE(EvaluateScript("var num_called = 0;", NULL));
typedef CallbackFunctionInterface::VoidFunction FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesVoidFunction(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesVoidFunction(function() { num_called++ });", NULL));
ASSERT_TRUE(function_owner.IsSet());
FunctionType::ReturnValue value = function_owner.reference().value().Run();
ASSERT_FALSE(value.exception);
EXPECT_TRUE(EvaluateScript("num_called == 1;", &result));
EXPECT_STREQ("true", result.c_str());
engine_->CollectGarbage();
// Call it once more to ensure the function has not been garbage collected.
value = function_owner.reference().value().Run();
ASSERT_FALSE(value.exception);
EXPECT_TRUE(EvaluateScript("num_called == 2;", &result));
EXPECT_STREQ("true", result.c_str());
}
TEST_F(CallbackFunctionTest, CallbackWithOneParameter) {
std::string result;
EXPECT_TRUE(EvaluateScript("var callback_value;", NULL));
// Store a handle to the callback passed from script.
typedef CallbackFunctionInterface::FunctionWithOneParameter FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesFunctionWithOneParameter(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesFunctionWithOneParameter(function(value) { "
"callback_value = value });",
NULL));
ASSERT_TRUE(function_owner.IsSet());
// Run the callback, and check that the value was passed through to script.
FunctionType::ReturnValue value = function_owner.reference().value().Run(5);
ASSERT_FALSE(value.exception);
EXPECT_TRUE(EvaluateScript("callback_value;", &result));
EXPECT_STREQ("5", result.c_str());
}
TEST_F(CallbackFunctionTest, CallbackWithSeveralParameters) {
std::string result;
EXPECT_TRUE(EvaluateScript("var value1;", NULL));
EXPECT_TRUE(EvaluateScript("var value2;", NULL));
EXPECT_TRUE(EvaluateScript("var value3;", NULL));
// Store a handle to the callback passed from script.
typedef CallbackFunctionInterface::FunctionWithSeveralParameters FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesFunctionWithSeveralParameters(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesFunctionWithSeveralParameters("
"function(param1, param2, param3) { "
"value1 = param1; value2 = param2; value3 = param3; });",
NULL));
ASSERT_TRUE(function_owner.IsSet());
// Execute the callback
scoped_refptr<ArbitraryInterface> some_object =
new ::testing::StrictMock<ArbitraryInterface>();
FunctionType::ReturnValue value =
function_owner.reference().value().Run(3.14, "some string", some_object);
ASSERT_FALSE(value.exception);
// Verify that each parameter got passed to script as expected.
EXPECT_TRUE(EvaluateScript("value1;", &result));
EXPECT_STREQ("3.14", result.c_str());
EXPECT_TRUE(EvaluateScript("value2;", &result));
EXPECT_STREQ("some string", result.c_str());
EXPECT_CALL((*some_object.get()), ArbitraryFunction());
EXPECT_TRUE(EvaluateScript("value3.arbitraryFunction();", NULL));
}
TEST_F(CallbackFunctionTest, CallbackWithNullableParameters) {
std::string result;
EXPECT_TRUE(EvaluateScript("var value1;", NULL));
EXPECT_TRUE(EvaluateScript("var value2;", NULL));
EXPECT_TRUE(EvaluateScript("var value3;", NULL));
// Store a handle to the callback passed from script.
typedef CallbackFunctionInterface::FunctionWithNullableParameters
FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), TakesFunctionWithNullableParameters(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.takesFunctionWithNullableParameters("
"function(param1, param2, param3) { "
"value1 = param1; value2 = param2; value3 = param3; });",
NULL));
ASSERT_TRUE(function_owner.IsSet());
// Execute the callback
FunctionType::ReturnValue value = function_owner.reference().value().Run(
base::nullopt, base::nullopt, NULL);
ASSERT_FALSE(value.exception);
// Verify that each parameter got passed to script as expected.
EXPECT_TRUE(EvaluateScript("value1;", &result));
EXPECT_STREQ("null", result.c_str());
EXPECT_TRUE(EvaluateScript("value2;", &result));
EXPECT_STREQ("null", result.c_str());
EXPECT_TRUE(EvaluateScript("value3;", &result));
EXPECT_STREQ("null", result.c_str());
}
TEST_F(CallbackFunctionTest, CallbackAttribute) {
InSequence in_sequence_dummy;
std::string result;
EXPECT_TRUE(EvaluateScript("var num_called = 0;", NULL));
typedef CallbackFunctionInterface::VoidFunction FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), set_callback_attribute(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"var callback_function = function() { ++num_called; };", NULL));
EXPECT_TRUE(
EvaluateScript("test.callbackAttribute = callback_function;", NULL));
ASSERT_TRUE(function_owner.IsSet());
// Execute the callback
FunctionType::ReturnValue value = function_owner.reference().value().Run();
ASSERT_FALSE(value.exception);
EXPECT_TRUE(EvaluateScript("num_called;", &result));
EXPECT_STREQ("1", result.c_str());
// Check that the getter references the same object
EXPECT_CALL(test_mock(), callback_attribute())
.WillOnce(Return(&function_owner.reference().referenced_value()));
EXPECT_TRUE(
EvaluateScript("test.callbackAttribute === callback_function;", &result));
EXPECT_STREQ("true", result.c_str());
// Get the callback and execute it
EXPECT_CALL(test_mock(), callback_attribute())
.WillOnce(Return(&function_owner.reference().referenced_value()));
EXPECT_TRUE(
EvaluateScript("var callback_function2 = test.callbackAttribute;", NULL));
EXPECT_TRUE(EvaluateScript("callback_function2();", NULL));
EXPECT_TRUE(EvaluateScript("num_called;", &result));
EXPECT_STREQ("2", result.c_str());
}
TEST_F(CallbackFunctionTest, SetNullableCallbackAttribute) {
InSequence in_sequence_dummy;
std::string result;
typedef CallbackFunctionInterface::VoidFunction FunctionType;
typedef ScriptObjectOwner<script::ScriptValue<FunctionType> > FunctionOwner;
FunctionOwner function_owner(&test_mock());
EXPECT_CALL(test_mock(), set_nullable_callback_attribute(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript(
"test.nullableCallbackAttribute = function() { };", NULL));
EXPECT_TRUE(function_owner.IsSet());
EXPECT_CALL(test_mock(), set_nullable_callback_attribute(_))
.WillOnce(Invoke(&function_owner, &FunctionOwner::TakeOwnership));
EXPECT_TRUE(EvaluateScript("test.nullableCallbackAttribute = null;", NULL));
EXPECT_FALSE(function_owner.IsSet());
}
TEST_F(CallbackFunctionTest, GetNullableCallbackAttribute) {
InSequence in_sequence_dummy;
std::string result;
EXPECT_CALL(test_mock(), nullable_callback_attribute())
.WillOnce(
Return(static_cast<
script::ScriptValue<CallbackFunctionInterface::VoidFunction>*>(
NULL)));
EXPECT_TRUE(
EvaluateScript("test.nullableCallbackAttribute == null;", &result));
EXPECT_STREQ("true", result.c_str());
}
TEST_F(CallbackFunctionTest, SetNonFunction) {
std::string result;
EXPECT_FALSE(EvaluateScript("test.callbackAttribute = 5;", &result));
EXPECT_THAT(result.c_str(), ContainsRegex("TypeError:"));
}
TEST_F(CallbackFunctionTest, SetNullToNonNullable) {
std::string result;
EXPECT_FALSE(EvaluateScript("test.callbackAttribute = null;", &result));
EXPECT_THAT(result.c_str(), ContainsRegex("TypeError:"));
}
} // namespace testing
} // namespace bindings
} // namespace cobalt