69 lines · python
1"""2Test that if we hit a breakpoint on two threads at the 3same time, one of which passes the condition, one not,4we only have a breakpoint stop reason for the one that5passed the condition.6"""7 8import lldb9import lldbsuite.test.lldbutil as lldbutil10from lldbsuite.test.decorators import *11from lldbsuite.test.lldbtest import *12 13 14class TestTwoHitsOneActual(TestBase):15 NO_DEBUG_INFO_TESTCASE = True16 17 @skipIf(oslist=["linux"], archs=["arm$", "aarch64"])18 def test_two_hits_one_actual(self):19 """There can be many tests in a test case - describe this test here."""20 self.build()21 self.main_source_file = lldb.SBFileSpec("main.cpp")22 self.sample_test()23 24 def sample_test(self):25 """You might use the test implementation in several ways, say so here."""26 27 (target, process, main_thread, _) = lldbutil.run_to_source_breakpoint(28 self, "Set bkpt here to get started", self.main_source_file29 )30 # This is working around a separate bug. If you hit a breakpoint and31 # run an expression and it is the first expression you've ever run, on32 # Darwin that will involve running the ObjC runtime parsing code, and we'll33 # be in the middle of that when we do PerformAction on the other thread,34 # which will cause the condition expression to fail. Calling another35 # expression first works around this.36 val_obj = main_thread.frame[0].EvaluateExpression("main_usec==1")37 self.assertSuccess(val_obj.GetError(), "Ran our expression successfully")38 self.assertEqual(val_obj.value, "true", "Value was true.")39 # Set two breakpoints just to test the multiple location logic:40 bkpt1 = target.BreakpointCreateBySourceRegex(41 "Break here in the helper", self.main_source_file42 )43 bkpt2 = target.BreakpointCreateBySourceRegex(44 "Break here in the helper", self.main_source_file45 )46 47 # This one will never be hit:48 bkpt1.SetCondition("usec == 100")49 # This one will only be hit on the main thread:50 bkpt2.SetCondition("usec == 1")51 52 # This is hard to test definitively, becuase it requires hitting53 # a breakpoint on multiple threads at the same time. On Darwin, this54 # will happen pretty much ever time we continue. What we are really55 # asserting is that we only ever stop on one thread, so we approximate that56 # by continuing 20 times and assert we only ever hit the first thread. Either57 # this is a platform that only reports one hit at a time, in which case all58 # this code is unused, or we actually didn't hit the other thread.59 60 for idx in range(0, 20):61 process.Continue()62 for thread in process.threads:63 if thread.id == main_thread.id:64 self.assertStopReason(65 thread.stop_reason, lldb.eStopReasonBreakpoint66 )67 else:68 self.assertStopReason(thread.stop_reason, lldb.eStopReasonNone)69