101 lines
3.9 KiB
Python
101 lines
3.9 KiB
Python
"""
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Test 'watchpoint command'.
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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 WatchpointPythonCommandTestCase(TestBase):
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mydir = os.path.join("functionalities", "watchpoint", "watchpoint_commands", "command")
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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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# And the watchpoint variable declaration line number.
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self.decl = line_number(self.source, '// Watchpoint variable declaration.')
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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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@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
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@dsym_test
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def test_watchpoint_command_with_dsym(self):
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"""Test 'watchpoint command'."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_command()
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@dwarf_test
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def test_watchpoint_command_with_dwarf(self):
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"""Test 'watchpoint command'."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watchpoint_command()
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def watchpoint_command(self):
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"""Do 'watchpoint command add'."""
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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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# self.expect("breakpoint set -l %d" % self.line, BREAKPOINT_CREATED,
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# startstr = "Breakpoint created: 1: file ='%s', line = %d, locations = 1" %
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# (self.source, self.line))#
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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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# Now let's set a write-type watchpoint for 'global'.
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self.expect("watchpoint set variable -w write global", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = w',
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'%s:%d' % (self.source, self.decl)])
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self.runCmd('watchpoint command add -s python 1 -o \'frame.EvaluateExpression("cookie = 777")\'')
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# List the watchpoint command we just added.
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self.expect("watchpoint command list 1",
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substrs = ['frame.EvaluateExpression', 'cookie = 777'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should be 0 initially.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 0'])
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self.runCmd("process continue")
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# We should be stopped again due to the watchpoint (write type).
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# The stop reason of the thread should be watchpoint.
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self.expect("thread backtrace", STOPPED_DUE_TO_WATCHPOINT,
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substrs = ['stop reason = watchpoint'])
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# Check that the watchpoint snapshoting mechanism is working.
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self.expect("watchpoint list -v",
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substrs = ['old value:', 'global = 0',
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'new value:', 'global = 1'])
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# The watchpoint command "forced" our global variable 'cookie' to become 777.
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self.expect("frame variable -g cookie",
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substrs = ['(int32_t)', 'cookie = 777'])
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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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