81 lines
3.2 KiB
Python
81 lines
3.2 KiB
Python
"""
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Test error cases for the 'watchpoint set' command to make sure it errors out when necessary.
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"""
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import os, time
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import unittest2
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import lldb
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from lldbtest import *
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import lldbutil
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class WatchpointSetErrorTestCase(TestBase):
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mydir = os.path.join("functionalities", "watchpoint", "watchpoint_set_command")
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def test_error_cases_with_watchpoint_set(self):
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"""Test error cases with the 'watchpoint set' command."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.error_cases_with_watchpoint_set()
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Our simple source filename.
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self.source = 'main.cpp'
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# Find the line number to break inside main().
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self.line = line_number(self.source, '// Set break point at this line.')
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# Build dictionary to have unique executable names for each test method.
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self.exe_name = self.testMethodName
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self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
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def error_cases_with_watchpoint_set(self):
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"""Test error cases with the 'watchpoint set' command."""
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exe = os.path.join(os.getcwd(), self.exe_name)
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Add a breakpoint to set a watchpoint when stopped on the breakpoint.
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1)
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# Run the program.
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self.runCmd("run", RUN_SUCCEEDED)
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# We should be stopped again due to the breakpoint.
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# Try some error conditions:
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# 'watchpoint set' is now a multiword command.
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self.expect("watchpoint set",
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substrs = ['The following subcommands are supported:',
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'expression',
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'variable'])
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self.runCmd("watchpoint set variable -w read_write", check=False)
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# 'watchpoint set expression' with '-w' or '-x' specified now needs
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# an option terminator and a raw expression after that.
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self.expect("watchpoint set expression -w write --", error=True,
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startstr = 'error: required argument missing; specify an expression to evaulate into the addres to watch for')
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# It's an error if the expression did not evaluate to an address.
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self.expect("watchpoint set expression MyAggregateDataType", error=True,
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startstr = 'error: expression did not evaluate to an address')
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# Check for missing option terminator '--'.
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self.expect("watchpoint set expression -w write -x 1 g_char_ptr", error=True,
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startstr = 'error: did you forget to enter the option terminator string "--"?')
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# Wrong size parameter is an error.
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self.expect("watchpoint set variable -x -128", error=True,
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substrs = ['invalid enumeration value'])
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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