• Home
  • History
  • Annotate
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1"""
2Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs
3"""
4
5import os, time
6import unittest2
7import lldb
8from lldbtest import *
9import lldbutil
10
11class Rdar10887661TestCase(TestBase):
12
13    mydir = os.path.join("functionalities", "data-formatter", "rdar-10887661")
14
15    # rdar://problem/10887661
16    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
17    @dsym_test
18    def test_with_dsym_and_run_command(self):
19        """Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs."""
20        self.buildDsym()
21        self.capping_test_commands()
22
23    # rdar://problem/10887661
24    @dwarf_test
25    def test_with_dwarf_and_run_command(self):
26        """Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs."""
27        self.buildDwarf()
28        self.capping_test_commands()
29
30    def setUp(self):
31        # Call super's setUp().
32        TestBase.setUp(self)
33        # Find the line number to break at.
34        self.line = line_number('main.cpp', '// Set break point at this line.')
35
36    def capping_test_commands(self):
37        """Check for an issue where capping does not work because the Target pointer appears to be changing behind our backs."""
38        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
39
40        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
41
42        self.runCmd("run", RUN_SUCCEEDED)
43
44        # The stop reason of the thread should be breakpoint.
45        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
46            substrs = ['stopped',
47                       'stop reason = breakpoint'])
48
49        # This is the function to remove the custom formats in order to have a
50        # clean slate for the next test case.
51        def cleanup():
52            self.runCmd('type format clear', check=False)
53            self.runCmd('type summary clear', check=False)
54            self.runCmd('type filter clear', check=False)
55            self.runCmd('type synth clear', check=False)
56            self.runCmd("settings set target.max-children-count 256", check=False)
57
58        # Execute the cleanup function during test case tear down.
59        self.addTearDownHook(cleanup)
60
61        # set up the synthetic children provider
62        self.runCmd("script from fooSynthProvider import *")
63        self.runCmd("type synth add -l fooSynthProvider foo")
64
65        # check that the synthetic children work, so we know we are doing the right thing
66        self.expect("frame variable f00_1",
67                    substrs = ['r = 33',
68                               'fake_a = 16777216',
69                               'a = 0']);
70
71        # check that capping works
72        self.runCmd("settings set target.max-children-count 2", check=False)
73
74        self.expect("frame variable f00_1",
75                    substrs = ['...',
76                               'fake_a = 16777216',
77                               'a = 0']);
78
79        self.expect("frame variable f00_1", matching=False,
80                    substrs = ['r = 33']);
81
82
83        self.runCmd("settings set target.max-children-count 256", check=False)
84
85        self.expect("frame variable f00_1", matching=True,
86                    substrs = ['r = 33']);
87
88if __name__ == '__main__':
89    import atexit
90    lldb.SBDebugger.Initialize()
91    atexit.register(lambda: lldb.SBDebugger.Terminate())
92    unittest2.main()
93