84 lines · python
1"""2Test that the built in ObjC exception throw recognizer works3"""4 5import lldb6from lldbsuite.test.decorators import *7import lldbsuite.test.lldbutil as lldbutil8from lldbsuite.test.lldbtest import *9 10 11class TestObjCRecognizer(TestBase):12 NO_DEBUG_INFO_TESTCASE = True13 14 @skipUnlessDarwin15 def test_exception_recognizer_sub_class(self):16 """There can be many tests in a test case - describe this test here."""17 self.build()18 self.main_source_file = lldb.SBFileSpec("main.m")19 self.objc_recognizer_test(True)20 21 @skipUnlessDarwin22 def test_exception_recognizer_plain(self):23 """There can be many tests in a test case - describe this test here."""24 self.build()25 self.main_source_file = lldb.SBFileSpec("main.m")26 self.objc_recognizer_test(False)27 28 def objc_recognizer_test(self, sub_class):29 """Make sure we stop at the exception and get all the fields out of the recognizer.30 If sub_class is True, we make a subclass of NSException and throw that."""31 if sub_class:32 bkpt_string = "Set a breakpoint here for MyException"33 else:34 bkpt_string = "Set a breakpoint here for plain exception"35 36 (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(37 self, bkpt_string, self.main_source_file38 )39 40 # Now turn on the ObjC Exception breakpoint and continue to hit it:41 exception_bkpt = target.BreakpointCreateForException(42 lldb.eLanguageTypeObjC, False, True43 )44 self.assertGreater(45 exception_bkpt.GetNumLocations(), 0, "Got some exception locations"46 )47 48 threads = lldbutil.continue_to_breakpoint(process, exception_bkpt)49 self.assertEqual(len(threads), 1, "One thread hit exception breakpoint")50 frame = threads[0].frame[0]51 52 var_opts = lldb.SBVariablesOptions()53 var_opts.SetIncludeRecognizedArguments(True)54 var_opts.SetUseDynamic(True)55 vars = frame.GetVariables(var_opts)56 self.assertEqual(len(vars), 1, "Got the synthetic argument")57 self.assertTrue(vars[0].IsValid(), "Got a valid Exception variable")58 59 # This will be a pointer60 61 ns_exception_children = [62 ValueCheck(type="NSObject"),63 ValueCheck(name="name", summary='"NSException"'),64 ValueCheck(name="reason", summary='"Simple Reason"'),65 ValueCheck(name="userInfo"),66 ValueCheck(name="reserved"),67 ]68 ns_exception = ValueCheck(type="NSException", children=ns_exception_children)69 if not sub_class:70 simple_check = ValueCheck(name="exception", dereference=ns_exception)71 simple_check.check_value(self, vars[0], "Simple exception is right")72 else:73 my_exception_children = [74 ns_exception,75 ValueCheck(name="extra_info", type="int", value="100"),76 ]77 my_exception = ValueCheck(78 type="MyException", children=my_exception_children79 )80 sub_check = ValueCheck(81 name="exception", type="MyException *", dereference=my_exception82 )83 sub_check.check_value(self, vars[0], "Subclass exception is right")84