0f821339da
Add a function to make it easier to debug a test failure caused by an
unexpected stop reason. This is similar to the assertState helper that
was added in ce825e4674.
Before:
self.assertEqual(stop_reason, lldb.eStopReasonInstrumentation)
AssertionError: 5 != 10
After:
self.assertStopReason(stop_reason, lldb.eStopReasonInstrumentation)
AssertionError: signal (5) != instrumentation (10)
Differential revision: https://reviews.llvm.org/D131083
54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
"""
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Make sure the stop reason of a thread that did not run
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during an expression is not changed by running the expression
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"""
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import lldb
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import lldbsuite.test.lldbutil as lldbutil
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test.decorators import *
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class TestStopReasonAfterExpression(TestBase):
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@skipIfWindows
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@expectedFailureAll(oslist=["freebsd"], bugnumber="llvm.org/pr48415")
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@expectedFlakeyNetBSD
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def test_thread_state_after_expr(self):
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self.build()
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self.main_source_file = lldb.SBFileSpec("main.cpp")
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self.do_test()
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def do_test(self):
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(target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
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"Set a breakpoint here", self.main_source_file)
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self.assertEqual(bkpt.GetNumLocations(), 2, "Got two locations")
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# So now thread holds the main thread. Continue to hit the
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# breakpoint again on the spawned thread:
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threads = lldbutil.continue_to_breakpoint(process, bkpt)
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self.assertEqual(len(threads), 1, "Hit the breakpoint the second time")
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other_thread = threads[0]
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self.assertNotEqual(thread.GetThreadID(), other_thread.GetThreadID(),
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"A different thread")
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# Run an expression ONLY on other_thread. Don't let thread run:
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options = lldb.SBExpressionOptions()
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options.SetTryAllThreads(False)
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options.SetStopOthers(True)
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result = thread.frames[0].EvaluateExpression('(int) printf("Hello\\n")', options)
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self.assertSuccess(result.GetError(), "Expression failed")
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stop_reason = other_thread.GetStopReason()
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self.assertStopReason(stop_reason, lldb.eStopReasonBreakpoint,
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"Still records stopped at breakpoint: %s"
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%(lldbutil.stop_reason_to_str(stop_reason)))
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self.assertEqual(other_thread.GetStopReasonDataAtIndex(0), 1,
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"Still records stopped at right breakpoint")
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