40 lines · python
1"""2Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed.3"""4 5 6import lldb7from lldbsuite.test.lldbtest import *8import lldbsuite.test.lldbutil as lldbutil9 10 11class DataFormatterRefPtrRecursionTestCase(TestBase):12 def setUp(self):13 # Call super's setUp().14 TestBase.setUp(self)15 # Find the line number to break at.16 self.line = line_number("main.cpp", "// Set break point at this line.")17 18 def test_with_run_command(self):19 """Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed."""20 self.build()21 self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)22 23 lldbutil.run_break_set_by_file_and_line(24 self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True25 )26 27 self.runCmd("run", RUN_SUCCEEDED)28 29 # The stop reason of the thread should be breakpoint.30 self.expect(31 "thread list",32 STOPPED_DUE_TO_BREAKPOINT,33 substrs=["stopped", "stop reason = breakpoint"],34 )35 36 self.expect("frame variable foo", substrs=[])37 self.expect("frame variable foo --ptr-depth=1", substrs=["ID = 1"])38 self.expect("frame variable foo --ptr-depth=2", substrs=["ID = 1"])39 self.expect("frame variable foo --ptr-depth=3", substrs=["ID = 1"])40