File: TestModifyWatchpoint.py

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"""
Confirm that lldb modify watchpoints only stop
when the value being watched changes.
"""


import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil


@skipIfWindows
class ModifyWatchpointTestCase(TestBase):
    NO_DEBUG_INFO_TESTCASE = True

    def test_modify_watchpoint(self):
        """Test that a modify watchpoint only stops when the value changes."""
        self.build()
        self.main_source_file = lldb.SBFileSpec("main.c")
        (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(
            self, "break here", self.main_source_file
        )

        self.runCmd("watch set variable value")
        process.Continue()
        frame = process.GetSelectedThread().GetFrameAtIndex(0)
        self.assertEqual(frame.locals["value"][0].GetValueAsUnsigned(), 10)

        process.Continue()
        frame = process.GetSelectedThread().GetFrameAtIndex(0)
        self.assertEqual(frame.locals["value"][0].GetValueAsUnsigned(), 5)

        process.Continue()
        frame = process.GetSelectedThread().GetFrameAtIndex(0)
        self.assertEqual(frame.locals["value"][0].GetValueAsUnsigned(), 7)

        process.Continue()
        frame = process.GetSelectedThread().GetFrameAtIndex(0)
        self.assertEqual(frame.locals["value"][0].GetValueAsUnsigned(), 9)