| """Test stepping through ObjC method dispatch in various forms.""" |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| |
| class TestObjCStepping(TestBase): |
| |
| mydir = "objc-stepping" |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| def test_with_dsym_and_python_api(self): |
| """Test stepping through ObjC method dispatch in various forms.""" |
| self.buildDsym() |
| self.objc_stepping() |
| |
| @python_api_test |
| def test_with_dwarf_and_python_api(self): |
| """Test stepping through ObjC method dispatch in various forms.""" |
| self.buildDwarf() |
| self.objc_stepping() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line numbers to break inside main(). |
| self.main_source = "stepping-tests.m" |
| self.line1 = line_number(self.main_source, '// Set first breakpoint here.') |
| self.line2 = line_number(self.main_source, '// Set second breakpoint here.') |
| self.line3 = line_number(self.main_source, '// Set third breakpoint here.') |
| self.line4 = line_number(self.main_source, '// Set fourth breakpoint here.') |
| self.line5 = line_number(self.main_source, '// Set fifth breakpoint here.') |
| self.source_randomMethod_line = line_number (self.main_source, '// Source randomMethod start line.') |
| self.sourceBase_randomMethod_line = line_number (self.main_source, '// SourceBase randomMethod start line.') |
| self.source_returnsStruct_start_line = line_number (self.main_source, '// Source returnsStruct start line.') |
| self.source_returnsStruct_call_line = line_number (self.main_source, '// Source returnsStruct call line.') |
| self.sourceBase_returnsStruct_start_line = line_number (self.main_source, '// SourceBase returnsStruct start line.') |
| |
| def objc_stepping(self): |
| """Use Python APIs to test stepping into ObjC methods.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target.IsValid(), VALID_TARGET) |
| |
| break1 = target.BreakpointCreateByLocation(self.main_source, self.line1) |
| self.assertTrue(break1.IsValid(), VALID_BREAKPOINT) |
| |
| break2 = target.BreakpointCreateByLocation(self.main_source, self.line2) |
| self.assertTrue(break2.IsValid(), VALID_BREAKPOINT) |
| |
| break3 = target.BreakpointCreateByLocation(self.main_source, self.line3) |
| self.assertTrue(break3.IsValid(), VALID_BREAKPOINT) |
| |
| break4 = target.BreakpointCreateByLocation(self.main_source, self.line4) |
| self.assertTrue(break4.IsValid(), VALID_BREAKPOINT) |
| |
| break5 = target.BreakpointCreateByLocation(self.main_source, self.line5) |
| self.assertTrue(break5.IsValid(), VALID_BREAKPOINT) |
| |
| break_returnStruct_call_super = target.BreakpointCreateByLocation(self.main_source, self.source_returnsStruct_call_line) |
| self.assertTrue(break_returnStruct_call_super.IsValid(), VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| error = lldb.SBError() |
| self.process = target.Launch (self.dbg.GetListener(), None, None, os.ctermid(), os.ctermid(), os.ctermid(), None, 0, False, error) |
| |
| self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| thread = self.process.GetThreadAtIndex(0) |
| if thread.GetStopReason() != lldb.eStopReasonBreakpoint: |
| from lldbutil import StopReasonString |
| self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS % |
| StopReasonString(thread.GetStopReason())) |
| |
| # Make sure we stopped at the first breakpoint. |
| |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.line1, "Hit the first breakpoint.") |
| |
| mySource = thread.GetFrameAtIndex(0).FindVariable("mySource") |
| self.assertTrue(mySource.IsValid(), "Found mySource local variable.") |
| mySource_isa = mySource.GetChildMemberWithName ("isa") |
| self.assertTrue(mySource_isa.IsValid(), "Found mySource->isa local variable.") |
| mySource_isa.GetValue (thread.GetFrameAtIndex(0)) |
| |
| # Now step in, that should leave us in the Source randomMethod: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_randomMethod_line, "Stepped into Source randomMethod.") |
| |
| # Now step in again, through the super call, and that should leave us in the SourceBase randomMethod: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.sourceBase_randomMethod_line, "Stepped through super into SourceBase randomMethod.") |
| |
| self.process.Continue() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.line2, "Continued to second breakpoint in main.") |
| |
| # Again, step in twice gets us to a stret method and a stret super call: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_returnsStruct_start_line, "Stepped into Source returnsStruct.") |
| |
| self.process.Continue() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_returnsStruct_call_line, "Stepped to the call super line in Source returnsStruct.") |
| |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.sourceBase_returnsStruct_start_line, "Stepped through super into SourceBase returnsStruct.") |
| |
| # Cool now continue to get past the call that intializes the Observer, and then do our steps in again to see that |
| # we can find our way when we're stepping through a KVO swizzled object. |
| |
| self.process.Continue() |
| frame = thread.GetFrameAtIndex(0) |
| line_number = frame.GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.line3, "Continued to third breakpoint in main, our object should now be swizzled.") |
| |
| mySource_isa.GetValue (frame) |
| did_change = mySource_isa.GetValueDidChange (frame) |
| |
| self.assertTrue (did_change, "The isa did indeed change, swizzled!") |
| |
| # Now step in, that should leave us in the Source randomMethod: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_randomMethod_line, "Stepped into Source randomMethod in swizzled object.") |
| |
| # Now step in again, through the super call, and that should leave us in the SourceBase randomMethod: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.sourceBase_randomMethod_line, "Stepped through super into SourceBase randomMethod in swizzled object.") |
| |
| self.process.Continue() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.line4, "Continued to fourth breakpoint in main.") |
| |
| # Again, step in twice gets us to a stret method and a stret super call: |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_returnsStruct_start_line, "Stepped into Source returnsStruct in swizzled object.") |
| |
| self.process.Continue() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.source_returnsStruct_call_line, "Stepped to the call super line in Source returnsStruct - second time.") |
| |
| thread.StepInto() |
| line_number = thread.GetFrameAtIndex(0).GetLineEntry().GetLine() |
| self.assertTrue (line_number == self.sourceBase_returnsStruct_start_line, "Stepped through super into SourceBase returnsStruct in swizzled object.") |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
