| """ |
| Test some lldb help commands. |
| |
| See also CommandInterpreter::OutputFormattedHelpText(). |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class HelpCommandTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @no_debug_info_test |
| def test_simplehelp(self): |
| """A simple test of 'help' command and its output.""" |
| self.expect("help", |
| startstr='Debugger commands:') |
| |
| self.expect("help -a", matching=False, |
| substrs=['next']) |
| |
| self.expect("help", matching=True, |
| substrs=['next']) |
| |
| @no_debug_info_test |
| def test_help_on_help(self): |
| """Testing the help on the help facility.""" |
| self.expect("help help", matching=True, |
| substrs=['--hide-aliases', |
| '--hide-user-commands']) |
| |
| @no_debug_info_test |
| def version_number_string(self): |
| """Helper function to find the version number string of lldb.""" |
| plist = os.path.join( |
| os.environ["LLDB_SRC"], |
| "resources", |
| "LLDB-Info.plist") |
| try: |
| CFBundleVersionSegFound = False |
| with open(plist, 'r') as f: |
| for line in f: |
| if CFBundleVersionSegFound: |
| version_line = line.strip() |
| import re |
| m = re.match("<string>(.*)</string>", version_line) |
| if m: |
| version = m.group(1) |
| return version |
| else: |
| # Unsuccessful, let's juts break out of the for |
| # loop. |
| break |
| |
| if line.find("<key>CFBundleVersion</key>") != -1: |
| # Found our match. The next line contains our version |
| # string, for example: |
| # |
| # <string>38</string> |
| CFBundleVersionSegFound = True |
| |
| except: |
| # Just fallthrough... |
| import traceback |
| traceback.print_exc() |
| pass |
| |
| # Use None to signify that we are not able to grok the version number. |
| return None |
| |
| @no_debug_info_test |
| def test_help_arch(self): |
| """Test 'help arch' which should list of supported architectures.""" |
| self.expect("help arch", |
| substrs=['arm', 'x86_64', 'i386']) |
| |
| @no_debug_info_test |
| def test_help_version(self): |
| """Test 'help version' and 'version' commands.""" |
| self.expect("help version", |
| substrs=['Show the LLDB debugger version.']) |
| import re |
| version_str = self.version_number_string() |
| match = re.match('[0-9]+', version_str) |
| search_regexp = ['lldb( version|-' + (version_str if match else '[0-9]+') + ').*\n'] |
| |
| self.expect("version", |
| patterns=search_regexp) |
| |
| @no_debug_info_test |
| def test_help_should_not_crash_lldb(self): |
| """Command 'help disasm' should not crash lldb.""" |
| self.runCmd("help disasm", check=False) |
| self.runCmd("help unsigned-integer") |
| |
| @no_debug_info_test |
| def test_help_should_not_hang_emacsshell(self): |
| """Command 'settings set term-width 0' should not hang the help command.""" |
| self.expect( |
| "settings set term-width 0", |
| COMMAND_FAILED_AS_EXPECTED, |
| error=True, |
| substrs=['error: 0 is out of range, valid values must be between']) |
| # self.runCmd("settings set term-width 0") |
| self.expect("help", |
| startstr='Debugger commands:') |
| |
| @no_debug_info_test |
| def test_help_breakpoint_set(self): |
| """Test that 'help breakpoint set' does not print out redundant lines of: |
| 'breakpoint set [-s <shlib-name>] ...'.""" |
| self.expect("help breakpoint set", matching=False, |
| substrs=['breakpoint set [-s <shlib-name>]']) |
| |
| @no_debug_info_test |
| def test_help_image_dump_symtab_should_not_crash(self): |
| """Command 'help image dump symtab' should not crash lldb.""" |
| # 'image' is an alias for 'target modules'. |
| self.expect("help image dump symtab", |
| substrs=['dump symtab', |
| 'sort-order']) |
| |
| @no_debug_info_test |
| def test_help_image_du_sym_is_ambiguous(self): |
| """Command 'help image du sym' is ambiguous and spits out the list of candidates.""" |
| self.expect("help image du sym", |
| COMMAND_FAILED_AS_EXPECTED, error=True, |
| substrs=['error: ambiguous command image du sym', |
| 'symfile', |
| 'symtab']) |
| |
| @no_debug_info_test |
| def test_help_image_du_line_should_work(self): |
| """Command 'help image du line-table' is not ambiguous and should work.""" |
| # 'image' is an alias for 'target modules'. |
| self.expect("help image du line", substrs=[ |
| 'Dump the line table for one or more compilation units']) |
| |
| @no_debug_info_test |
| def test_help_target_variable_syntax(self): |
| """Command 'help target variable' should display <variable-name> ...""" |
| self.expect("help target variable", |
| substrs=['<variable-name> [<variable-name> [...]]']) |
| |
| @no_debug_info_test |
| def test_help_watchpoint_and_its_args(self): |
| """Command 'help watchpoint', 'help watchpt-id', and 'help watchpt-id-list' should work.""" |
| self.expect("help watchpoint", |
| substrs=['delete', 'disable', 'enable', 'list']) |
| self.expect("help watchpt-id", |
| substrs=['<watchpt-id>']) |
| self.expect("help watchpt-id-list", |
| substrs=['<watchpt-id-list>']) |
| |
| @no_debug_info_test |
| def test_help_watchpoint_set(self): |
| """Test that 'help watchpoint set' prints out 'expression' and 'variable' |
| as the possible subcommands.""" |
| self.expect("help watchpoint set", |
| substrs=['The following subcommands are supported:'], |
| patterns=['expression +--', |
| 'variable +--']) |
| |
| @no_debug_info_test |
| def test_help_po_hides_options(self): |
| """Test that 'help po' does not show all the options for expression""" |
| self.expect( |
| "help po", |
| substrs=[ |
| '--show-all-children', |
| '--object-description'], |
| matching=False) |
| |
| @no_debug_info_test |
| def test_help_run_hides_options(self): |
| """Test that 'help run' does not show all the options for process launch""" |
| self.expect("help run", |
| substrs=['--arch', '--environment'], matching=False) |
| |
| @no_debug_info_test |
| def test_help_next_shows_options(self): |
| """Test that 'help next' shows all the options for thread step-over""" |
| self.expect("help next", |
| substrs=['--python-class', '--run-mode'], matching=True) |
| |
| @no_debug_info_test |
| def test_help_provides_alternatives(self): |
| """Test that help on commands that don't exist provides information on additional help avenues""" |
| self.expect( |
| "help thisisnotadebuggercommand", |
| substrs=[ |
| "'thisisnotadebuggercommand' is not a known command.", |
| "Try 'help' to see a current list of commands.", |
| "Try 'apropos thisisnotadebuggercommand' for a list of related commands.", |
| "Try 'type lookup thisisnotadebuggercommand' for information on types, methods, functions, modules, etc."], |
| error=True) |
| |
| self.expect( |
| "help process thisisnotadebuggercommand", |
| substrs=[ |
| "'process thisisnotadebuggercommand' is not a known command.", |
| "Try 'help' to see a current list of commands.", |
| "Try 'apropos thisisnotadebuggercommand' for a list of related commands.", |
| "Try 'type lookup thisisnotadebuggercommand' for information on types, methods, functions, modules, etc."]) |
| |
| @no_debug_info_test |
| def test_custom_help_alias(self): |
| """Test that aliases pick up custom help text.""" |
| def cleanup(): |
| self.runCmd('command unalias afriendlyalias', check=False) |
| self.runCmd('command unalias averyfriendlyalias', check=False) |
| |
| self.addTearDownHook(cleanup) |
| self.runCmd( |
| 'command alias --help "I am a friendly alias" -- afriendlyalias help') |
| self.expect( |
| "help afriendlyalias", |
| matching=True, |
| substrs=['I am a friendly alias']) |
| self.runCmd( |
| 'command alias --long-help "I am a very friendly alias" -- averyfriendlyalias help') |
| self.expect("help averyfriendlyalias", matching=True, |
| substrs=['I am a very friendly alias']) |
| @no_debug_info_test |
| def test_help_format_output(self): |
| """Test that help output reaches TerminalWidth.""" |
| self.runCmd( |
| 'settings set term-width 108') |
| self.expect( |
| "help format", |
| matching=True, |
| substrs=['<format> -- One of the format names']) |
