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76 lines
2.7 KiB
Python
76 lines
2.7 KiB
Python
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"""
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Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs
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"""
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from __future__ import print_function
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import os, time
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import lldb
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from lldbsuite.test.lldbtest import *
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import lldbsuite.test.lldbutil as lldbutil
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class SyntheticCappingTestCase(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 at.
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self.line = line_number('main.cpp', '// Set break point at this line.')
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def test_with_run_command(self):
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"""Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs."""
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self.build()
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self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# This is the function to remove the custom formats in order to have a
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# clean slate for the next test case.
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def cleanup():
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self.runCmd('type format clear', check=False)
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self.runCmd('type summary clear', check=False)
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self.runCmd('type filter clear', check=False)
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self.runCmd('type synth clear', check=False)
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self.runCmd("settings set target.max-children-count 256", check=False)
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# Execute the cleanup function during test case tear down.
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self.addTearDownHook(cleanup)
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# set up the synthetic children provider
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self.runCmd("script from fooSynthProvider import *")
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self.runCmd("type synth add -l fooSynthProvider foo")
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# check that the synthetic children work, so we know we are doing the right thing
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self.expect("frame variable f00_1",
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substrs = ['r = 33',
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'fake_a = 16777216',
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'a = 0']);
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# check that capping works
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self.runCmd("settings set target.max-children-count 2", check=False)
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self.expect("frame variable f00_1",
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substrs = ['...',
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'fake_a = 16777216',
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'a = 0']);
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self.expect("frame variable f00_1", matching=False,
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substrs = ['r = 33']);
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self.runCmd("settings set target.max-children-count 256", check=False)
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self.expect("frame variable f00_1", matching=True,
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substrs = ['r = 33']);
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