80fcecb13c
assertEquals is a deprecated alias for assertEqual and has been removed in Python 3.12. This wasn't an issue previously because we used a vendored version of the unittest module. Now that we use the built-in version this gets updated together with the Python version used to run the test suite.
125 lines
4.8 KiB
Python
125 lines
4.8 KiB
Python
"""Test stepping over watchpoints and instruction stepping past watchpoints."""
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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 TestStepOverWatchpoint(TestBase):
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NO_DEBUG_INFO_TESTCASE = True
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def get_to_start(self, bkpt_text):
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"""Test stepping over watchpoints and instruction stepping past watchpoints.."""
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self.build()
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target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
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self, bkpt_text, lldb.SBFileSpec("main.c")
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)
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return (target, process, thread, frame, read_watchpoint)
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@add_test_categories(["basic_process"])
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@expectedFailureAll(
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macos_version=["<", "14.4"],
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archs=["aarch64", "arm"],
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bugnumber="<rdar://problem/106868647>",
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)
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def test_step_over_read_watchpoint(self):
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self.build()
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target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
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self, "break here for read watchpoints", lldb.SBFileSpec("main.c")
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)
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frame = thread.GetFrameAtIndex(0)
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self.assertTrue(frame.IsValid(), "Failed to get frame.")
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read_value = frame.FindValue("g_watch_me_read", lldb.eValueTypeVariableGlobal)
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self.assertTrue(read_value.IsValid(), "Failed to find read value.")
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error = lldb.SBError()
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# resolve_location=True, read=True, write=False
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read_watchpoint = read_value.Watch(True, True, False, error)
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self.assertSuccess(error, "Error while setting watchpoint")
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self.assertTrue(read_watchpoint, "Failed to set read watchpoint.")
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# Disable the breakpoint we hit so we don't muddy the waters with
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# stepping off from the breakpoint:
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bkpt.SetEnabled(False)
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thread.StepOver()
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self.assertStopReason(
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thread.GetStopReason(),
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lldb.eStopReasonWatchpoint,
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STOPPED_DUE_TO_WATCHPOINT,
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)
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self.assertEqual(thread.GetStopDescription(20), "watchpoint 1")
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
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self.assertEqual(thread.GetStopDescription(20), "step over")
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self.step_inst_for_watchpoint(1)
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@add_test_categories(["basic_process"])
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@expectedFailureAll(
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macos_version=["<", "14.4"],
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archs=["aarch64", "arm"],
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bugnumber="<rdar://problem/106868647>",
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)
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def test_step_over_write_watchpoint(self):
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self.build()
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target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
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self, "break here for modify watchpoints", lldb.SBFileSpec("main.c")
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)
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# Disable the breakpoint we hit so we don't muddy the waters with
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# stepping off from the breakpoint:
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bkpt.SetEnabled(False)
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frame = thread.GetFrameAtIndex(0)
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self.assertTrue(frame.IsValid(), "Failed to get frame.")
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write_value = frame.FindValue("g_watch_me_write", lldb.eValueTypeVariableGlobal)
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self.assertTrue(write_value, "Failed to find write value.")
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error = lldb.SBError()
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# resolve_location=True, read=False, modify=True
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write_watchpoint = write_value.Watch(True, False, True, error)
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self.assertTrue(write_watchpoint, "Failed to set write watchpoint.")
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self.assertSuccess(error, "Error while setting watchpoint")
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thread.StepOver()
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self.assertStopReason(
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thread.GetStopReason(),
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lldb.eStopReasonWatchpoint,
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STOPPED_DUE_TO_WATCHPOINT,
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)
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self.assertEqual(thread.GetStopDescription(20), "watchpoint 1")
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
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self.assertEqual(thread.GetStopDescription(20), "step over")
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self.step_inst_for_watchpoint(1)
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def step_inst_for_watchpoint(self, wp_id):
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watchpoint_hit = False
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current_line = self.frame().GetLineEntry().GetLine()
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while self.frame().GetLineEntry().GetLine() == current_line:
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self.thread().StepInstruction(False) # step_over=False
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stop_reason = self.thread().GetStopReason()
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if stop_reason == lldb.eStopReasonWatchpoint:
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self.assertFalse(watchpoint_hit, "Watchpoint already hit.")
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expected_stop_desc = "watchpoint %d" % wp_id
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actual_stop_desc = self.thread().GetStopDescription(20)
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self.assertEqual(
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actual_stop_desc, expected_stop_desc, "Watchpoint ID didn't match."
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)
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watchpoint_hit = True
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else:
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self.assertStopReason(
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stop_reason, lldb.eStopReasonPlanComplete, STOPPED_DUE_TO_STEP_IN
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)
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self.assertTrue(watchpoint_hit, "Watchpoint never hit.")
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