779bbbf27f
Replace forms of `assertTrue(err.Success())` with `assertSuccess(err)` (added in D82759). * `assertSuccess` prints out the error's message * `assertSuccess` expresses explicit higher level semantics, both to the reader and for test failure output * `assertSuccess` seems not to be well known, using it where possible will help spread knowledge * `assertSuccess` statements are more succinct Differential Revision: https://reviews.llvm.org/D119616
145 lines
5.5 KiB
Python
145 lines
5.5 KiB
Python
"""
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Use lldb Python API to verify that expression evaluation for property references uses the correct getters and setters
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ObjCPropertyTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.source_name = 'main.m'
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@add_test_categories(['pyapi'])
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def test_objc_properties(self):
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"""Test that expr uses the correct property getters and setters"""
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if self.getArchitecture() == 'i386':
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self.skipTest("requires modern objc runtime")
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Create a target from the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Set up our breakpoints:
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main_bkpt = target.BreakpointCreateBySourceRegex(
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"Set a breakpoint here.", lldb.SBFileSpec(self.source_name))
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self.assertTrue(main_bkpt and
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main_bkpt.GetNumLocations() == 1,
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VALID_BREAKPOINT)
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# Now launch the process, and do not stop at the entry point.
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process = target.LaunchSimple(
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None, None, self.get_process_working_directory())
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self.assertEquals(process.GetState(), lldb.eStateStopped,
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PROCESS_STOPPED)
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threads = lldbutil.get_threads_stopped_at_breakpoint(
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process, main_bkpt)
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self.assertEquals(len(threads), 1)
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thread = threads[0]
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frame = thread.GetFrameAtIndex(0)
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mine = frame.FindVariable("mine")
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self.assertTrue(mine.IsValid())
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access_count = mine.GetChildMemberWithName("_access_count")
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self.assertTrue(access_count.IsValid())
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start_access_count = access_count.GetValueAsUnsigned(123456)
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self.assertNotEqual(start_access_count, 123456)
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#
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# The first set of tests test calling the getter & setter of
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# a property that actually only has a getter & setter and no
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# @property.
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#
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nonexistant_value = frame.EvaluateExpression(
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"mine.nonexistantInt", False)
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nonexistant_error = nonexistant_value.GetError()
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self.assertSuccess(nonexistant_error)
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nonexistant_int = nonexistant_value.GetValueAsUnsigned(123456)
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self.assertEquals(nonexistant_int, 6)
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# Calling the getter function would up the access count, so make sure
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# that happened.
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new_access_count = access_count.GetValueAsUnsigned(123456)
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self.assertEquals(new_access_count - start_access_count, 1)
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start_access_count = new_access_count
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#
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# Now call the setter, then make sure that
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nonexistant_change = frame.EvaluateExpression(
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"mine.nonexistantInt = 10", False)
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nonexistant_error = nonexistant_change.GetError()
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self.assertSuccess(nonexistant_error)
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# Calling the setter function would up the access count, so make sure
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# that happened.
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new_access_count = access_count.GetValueAsUnsigned(123456)
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self.assertEquals(new_access_count - start_access_count, 1)
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start_access_count = new_access_count
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#
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# Now we call the getter of a property that is backed by an ivar,
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# make sure it works and that we actually update the backing ivar.
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#
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backed_value = frame.EvaluateExpression("mine.backedInt", False)
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backed_error = backed_value.GetError()
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self.assertSuccess(backed_error)
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backing_value = mine.GetChildMemberWithName("_backedInt")
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self.assertTrue(backing_value.IsValid())
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self.assertTrue(backed_value.GetValueAsUnsigned(12345)
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== backing_value.GetValueAsUnsigned(23456))
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value_from_typedef = frame.EvaluateExpression("typedefd.backedInt", False)
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self.assertSuccess(value_from_typedef.GetError())
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self.assertEqual(value_from_typedef.GetValueAsUnsigned(12345),
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backing_value.GetValueAsUnsigned(23456))
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unbacked_value = frame.EvaluateExpression("mine.unbackedInt", False)
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unbacked_error = unbacked_value.GetError()
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self.assertSuccess(unbacked_error)
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idWithProtocol_value = frame.EvaluateExpression(
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"mine.idWithProtocol", False)
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idWithProtocol_error = idWithProtocol_value.GetError()
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self.assertSuccess(idWithProtocol_error)
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self.assertEquals(idWithProtocol_value.GetTypeName(), "id")
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# Make sure that class property getter works as expected
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value = frame.EvaluateExpression("BaseClass.classInt", False)
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self.assertSuccess(value.GetError())
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self.assertEquals(value.GetValueAsUnsigned(11111), 123)
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# Make sure that class property setter works as expected
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value = frame.EvaluateExpression("BaseClass.classInt = 234", False)
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self.assertSuccess(value.GetError())
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# Verify that setter above actually worked
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value = frame.EvaluateExpression("BaseClass.classInt", False)
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self.assertSuccess(value.GetError())
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self.assertEquals(value.GetValueAsUnsigned(11111), 234)
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# Test that accessing two distinct class and instance properties that
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# share the same name works.
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self.expect_expr("mine.propConflict", result_value="4")
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self.expect_expr("BaseClass.propConflict", result_value="6")
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