58 lines · python
1"""2Test that if we hit a breakpoint on a lambda capture3on two threads at the same time we stop only for4the correct one.5"""6 7import lldb8import lldbsuite.test.lldbutil as lldbutil9from lldbsuite.test.decorators import *10from lldbsuite.test.lldbtest import *11 12 13class TestBreakOnLambdaCapture(TestBase):14 NO_DEBUG_INFO_TESTCASE = True15 16 def test_break_on_lambda_capture(self):17 self.build()18 self.main_source_file = lldb.SBFileSpec("main.cpp")19 20 (target, process, main_thread, _) = lldbutil.run_to_source_breakpoint(21 self, "First break", self.main_source_file22 )23 24 # FIXME: This is working around a separate bug. If you hit a breakpoint and25 # run an expression and it is the first expression you've ever run, on26 # Darwin that will involve running the ObjC runtime parsing code, and we'll27 # be in the middle of that when we do PerformAction on the other thread,28 # which will cause the condition expression to fail. Calling another29 # expression first works around this.30 val_obj = main_thread.frame[0].EvaluateExpression("true")31 self.assertSuccess(val_obj.GetError(), "Ran our expression successfully")32 self.assertEqual(val_obj.value, "true", "Value was true.")33 34 bkpt = target.BreakpointCreateBySourceRegex(35 "Break here in the helper", self.main_source_file36 )37 38 bkpt.SetCondition("enable && usec == 1")39 process.Continue()40 41 # This is hard to test definitively, becuase it requires hitting42 # a breakpoint on multiple threads at the same time. On Darwin, this43 # will happen pretty much ever time we continue. What we are really44 # asserting is that we only ever stop on one thread, so we approximate that45 # by continuing 20 times and assert we only ever hit the first thread. Either46 # this is a platform that only reports one hit at a time, in which case all47 # this code is unused, or we actually didn't hit the other thread.48 49 for idx in range(0, 20):50 process.Continue()51 for thread in process.threads:52 if thread.id == main_thread.id:53 self.assertStopReason(54 thread.stop_reason, lldb.eStopReasonBreakpoint55 )56 else:57 self.assertStopReason(thread.stop_reason, lldb.eStopReasonNone)58