91 lines
3.2 KiB
Python
91 lines
3.2 KiB
Python
"""
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Test watchpoint condition API.
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class WatchpointConditionAPITestCase(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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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(
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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,
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'// Watchpoint variable declaration.')
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# Build dictionary to have unique executable names for each test
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# 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 test_watchpoint_cond_api(self):
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"""Test watchpoint condition API."""
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self.build(dictionary=self.d)
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self.setTearDownCleanup(dictionary=self.d)
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exe = self.getBuildArtifact(self.exe_name)
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Now create a breakpoint on main.c.
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breakpoint = target.BreakpointCreateByLocation(self.source, self.line)
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self.assertTrue(breakpoint and
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breakpoint.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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# We should be stopped due to the breakpoint. Get frame #0.
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process = target.GetProcess()
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self.assertState(process.GetState(), lldb.eStateStopped,
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PROCESS_STOPPED)
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonBreakpoint)
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frame0 = thread.GetFrameAtIndex(0)
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# Watch 'global' for write.
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value = frame0.FindValue('global', lldb.eValueTypeVariableGlobal)
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error = lldb.SBError()
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watchpoint = value.Watch(True, False, True, error)
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self.assertTrue(value and watchpoint,
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"Successfully found the variable and set a watchpoint")
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self.DebugSBValue(value)
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# Now set the condition as "global==5".
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watchpoint.SetCondition('global==5')
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self.expect(watchpoint.GetCondition(), exe=False,
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startstr='global==5')
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# Hide stdout if not running with '-t' option.
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if not self.TraceOn():
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self.HideStdout()
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print(watchpoint)
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# Continue. Expect the program to stop due to the variable being
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# written to.
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process.Continue()
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if (self.TraceOn()):
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lldbutil.print_stacktraces(process)
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thread = lldbutil.get_stopped_thread(
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process, lldb.eStopReasonWatchpoint)
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self.assertTrue(thread, "The thread stopped due to watchpoint")
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self.DebugSBValue(value)
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# Verify that the condition is met.
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self.assertEqual(value.GetValueAsUnsigned(), 5)
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