1""" 2Test lldb data formatter subsystem. 3""" 4 5import lldb 6from lldbsuite.test.decorators import * 7from lldbsuite.test.lldbtest import * 8import lldbsuite.test.lldbutil as lldbutil 9 10 11class ValueObjectRecursionTestCase(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 @no_debug_info_test 19 def test_with_run_command(self): 20 """Test that deeply nested ValueObjects still work.""" 21 self.build() 22 self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET) 23 24 lldbutil.run_break_set_by_file_and_line( 25 self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True 26 ) 27 28 self.runCmd("run", RUN_SUCCEEDED) 29 30 # The stop reason of the thread should be breakpoint. 31 self.expect( 32 "thread list", 33 STOPPED_DUE_TO_BREAKPOINT, 34 substrs=["stopped", "stop reason = breakpoint"], 35 ) 36 37 # This is the function to remove the custom formats in order to have a 38 # clean slate for the next test case. 39 def cleanup(): 40 self.runCmd("type format clear", check=False) 41 self.runCmd("type summary clear", check=False) 42 43 # Execute the cleanup function during test case tear down. 44 self.addTearDownHook(cleanup) 45 46 root = self.frame().FindVariable("root") 47 child = root.GetChildAtIndex(1) 48 if self.TraceOn(): 49 print(root) 50 print(child) 51 for i in range(0, 15000): 52 child = child.GetChildAtIndex(1) 53 if self.TraceOn(): 54 print(child) 55 self.assertTrue(child.IsValid(), "could not retrieve the deep ValueObject") 56 self.assertTrue( 57 child.GetChildAtIndex(0).IsValid(), "the deep ValueObject has no value" 58 ) 59 self.assertNotEqual( 60 child.GetChildAtIndex(0).GetValueAsUnsigned(), 61 0, 62 "the deep ValueObject has a zero value", 63 ) 64 self.assertNotEqual( 65 child.GetChildAtIndex(1).GetValueAsUnsigned(), 66 0, 67 "the deep ValueObject has no next", 68 ) 69