a7dfb665e3
it to print the old and new values. Temporarily disable the "out of scope" checking since it didn't work correctly, and was not what people generally expected watchpoints to be doing. llvm-svn: 166472
99 lines
3.6 KiB
Python
99 lines
3.6 KiB
Python
"""
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Test that a variable watchpoint should only hit when in scope.
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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 WatchedVariableHitWhenInScopeTestCase(TestBase):
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mydir = os.path.join("functionalities", "watchpoint", "variable_out_of_scope")
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#
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# This test depends on not tracking watchpoint expression hits if we have
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# left the watchpoint scope. We will provide such an ability at some point
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# but the way this was done was incorrect, and it is unclear that for the
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# most part that's not what folks mostly want, so we have to provide a
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# clearer API to express this.
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#
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@unittest2.expectedFailure
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@dsym_test
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def test_watched_var_should_only_hit_when_in_scope_with_dsym(self):
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"""Test that a variable watchpoint should only hit when in scope."""
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self.buildDsym(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watched_var()
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@unittest2.expectedFailure
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@dwarf_test
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def test_watched_var_should_only_hit_when_in_scope_with_dwarf(self):
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"""Test that a variable watchpoint should only hit when in scope."""
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self.buildDwarf(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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self.watched_var()
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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.c'
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self.exe_name = self.testMethodName
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self.d = {'C_SOURCES': self.source, 'EXE': self.exe_name}
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def watched_var(self):
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"""Test a simple sequence of watchpoint creation and watchpoint hit."""
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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 in main.
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lldbutil.run_break_set_by_symbol (self, "main", 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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# Now let's set a watchpoint for 'c.a'.
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# There should be only one watchpoint hit (see main.c).
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self.expect("watchpoint set variable c.a", WATCHPOINT_CREATED,
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substrs = ['Watchpoint created', 'size = 4', 'type = w'])
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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), but
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# only once. The stop reason of the thread should be watchpoint.
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self.expect("thread list", STOPPED_DUE_TO_WATCHPOINT,
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substrs = ['stopped',
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'stop reason = watchpoint'])
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self.runCmd("process continue")
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# Don't expect the read of 'global' to trigger a stop exception.
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# The process status should be 'exited'.
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self.expect("process status",
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substrs = ['exited'])
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# Use the '-v' option to do verbose listing of the watchpoint.
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# The hit count should now be 1.
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self.expect("watchpoint list -v",
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substrs = ['hit_count = 1'])
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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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