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      1 """
      2 Test lldb data formatter subsystem.
      3 """
      4 
      5 import os, time
      6 import unittest2
      7 import lldb
      8 from lldbtest import *
      9 import lldbutil
     10 
     11 class ValueObjectRecursionTestCase(TestBase):
     12 
     13     mydir = os.path.join("functionalities", "recursion")
     14 
     15     @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
     16     @dsym_test
     17     def test_with_dsym_and_run_command(self):
     18         """Test that deeply nested ValueObjects still work."""
     19         self.buildDsym()
     20         self.recursive_vo_commands()
     21 
     22     @dwarf_test
     23     def test_with_dwarf_and_run_command(self):
     24         """Test that deeply nested ValueObjects still work."""
     25         self.buildDwarf()
     26         self.recursive_vo_commands()
     27 
     28     def setUp(self):
     29         # Call super's setUp().
     30         TestBase.setUp(self)
     31         # Find the line number to break at.
     32         self.line = line_number('main.cpp', '// Set break point at this line.')
     33 
     34     def recursive_vo_commands(self):
     35         """Test that that file and class static variables display correctly."""
     36         self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
     37 
     38         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
     39 
     40         self.runCmd("run", RUN_SUCCEEDED)
     41 
     42         # The stop reason of the thread should be breakpoint.
     43         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
     44             substrs = ['stopped',
     45                        'stop reason = breakpoint'])
     46 
     47         # This is the function to remove the custom formats in order to have a
     48         # clean slate for the next test case.
     49         def cleanup():
     50             self.runCmd('type format clear', check=False)
     51             self.runCmd('type summary clear', check=False)
     52 
     53         # Execute the cleanup function during test case tear down.
     54         self.addTearDownHook(cleanup)
     55 
     56         root = self.frame().FindVariable("root")
     57         child = root.GetChildAtIndex(1)
     58         if self.TraceOn():
     59              print root
     60              print child
     61         for i in range(0,24500):
     62              child = child.GetChildAtIndex(1)
     63         if self.TraceOn():
     64              print child
     65         self.assertTrue(child.IsValid(),"could not retrieve the deep ValueObject")
     66         self.assertTrue(child.GetChildAtIndex(0).IsValid(),"the deep ValueObject has no value")
     67         self.assertTrue(child.GetChildAtIndex(0).GetValueAsUnsigned() != 0,"the deep ValueObject has a zero value")
     68         self.assertTrue(child.GetChildAtIndex(1).GetValueAsUnsigned() != 0, "the deep ValueObject has no next")
     69 
     70 if __name__ == '__main__':
     71     import atexit
     72     lldb.SBDebugger.Initialize()
     73     atexit.register(lambda: lldb.SBDebugger.Terminate())
     74     unittest2.main()
     75