| """ |
| Use lldb Python API to verify that expression evaluation for property references uses the correct getters and setters |
| """ |
| |
| import os, time |
| import re |
| import unittest2 |
| import lldb, lldbutil |
| from lldbtest import * |
| |
| class ObjCPropertyTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_objc_properties_with_dsym(self): |
| """Test that expr uses the correct property getters and setters""" |
| if self.getArchitecture() == 'i386': |
| self.skipTest("requires modern objc runtime") |
| self.buildDsym() |
| self.do_test_properties() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dwarf_test |
| def test_objc_properties_with_dwarf(self): |
| """Test that expr uses the correct property getters and setters""" |
| if self.getArchitecture() == 'i386': |
| self.skipTest("requires modern objc runtime") |
| self.buildDwarf() |
| self.do_test_properties() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| |
| # Find the line number to break for main.c. |
| |
| self.source_name = 'main.m' |
| |
| def run_to_main (self): |
| """Test that expr uses the correct property getters and setters""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target from the debugger. |
| |
| target = self.dbg.CreateTarget (exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Set up our breakpoints: |
| |
| main_bkpt = target.BreakpointCreateBySourceRegex ("Set a breakpoint here.", lldb.SBFileSpec (self.source_name)) |
| self.assertTrue(main_bkpt and |
| main_bkpt.GetNumLocations() == 1, |
| VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at the entry point. |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| |
| self.assertTrue(process.GetState() == lldb.eStateStopped, |
| PROCESS_STOPPED) |
| |
| threads = lldbutil.get_threads_stopped_at_breakpoint (process, main_bkpt) |
| self.assertTrue (len(threads) == 1) |
| thread = threads[0] |
| return thread |
| |
| def do_test_properties (self): |
| |
| thread = self.run_to_main() |
| |
| frame = thread.GetFrameAtIndex(0) |
| |
| mine = frame.FindVariable ("mine") |
| self.assertTrue (mine.IsValid()) |
| access_count = mine.GetChildMemberWithName ("_access_count") |
| self.assertTrue (access_count.IsValid()) |
| start_access_count = access_count.GetValueAsUnsigned (123456) |
| self.assertTrue (start_access_count != 123456) |
| |
| # |
| # The first set of tests test calling the getter & setter of |
| # a property that actually only has a getter & setter and no |
| # @property. |
| # |
| nonexistant_value = frame.EvaluateExpression("mine.nonexistantInt", False) |
| nonexistant_error = nonexistant_value.GetError() |
| self.assertTrue (nonexistant_error.Success()) |
| nonexistant_int = nonexistant_value.GetValueAsUnsigned (123456) |
| self.assertTrue (nonexistant_int == 6) |
| |
| # Calling the getter function would up the access count, so make sure that happened. |
| |
| new_access_count = access_count.GetValueAsUnsigned (123456) |
| self.assertTrue (new_access_count - start_access_count == 1) |
| start_access_count = new_access_count |
| |
| # |
| # Now call the setter, then make sure that |
| nonexistant_change = frame.EvaluateExpression("mine.nonexistantInt = 10", False) |
| nonexistant_error = nonexistant_change.GetError() |
| self.assertTrue (nonexistant_error.Success()) |
| |
| # Calling the setter function would up the access count, so make sure that happened. |
| |
| new_access_count = access_count.GetValueAsUnsigned (123456) |
| self.assertTrue (new_access_count - start_access_count == 1) |
| start_access_count = new_access_count |
| |
| # |
| # Now we call the getter of a property that is backed by an ivar, |
| # make sure it works and that we actually update the backing ivar. |
| # |
| |
| backed_value = frame.EvaluateExpression("mine.backedInt", False) |
| backed_error = backed_value.GetError() |
| self.assertTrue (backed_error.Success()) |
| backing_value = mine.GetChildMemberWithName ("_backedInt") |
| self.assertTrue (backing_value.IsValid()) |
| self.assertTrue (backed_value.GetValueAsUnsigned (12345) == backing_value.GetValueAsUnsigned(23456)) |
| |
| unbacked_value = frame.EvaluateExpression("mine.unbackedInt", False) |
| unbacked_error = unbacked_value.GetError() |
| self.assertTrue (unbacked_error.Success()) |
| |
| idWithProtocol_value = frame.EvaluateExpression("mine.idWithProtocol", False) |
| idWithProtocol_error = idWithProtocol_value.GetError() |
| self.assertTrue (idWithProtocol_error.Success()) |
| self.assertTrue (idWithProtocol_value.GetTypeName() == "id") |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |