packages/Python/lldbsuite/test/lang/cpp/scope/TestCppScope.py

   1 """
   2 Test scopes in C++.
   3 """
   4 import lldb
   5 from lldbsuite.test.decorators import *
   6 from lldbsuite.test.lldbtest import *
   7 from lldbsuite.test import lldbutil
   8
   9
  10 class TestCppScopes(TestBase):
  11
  12     mydir = TestBase.compute_mydir(__file__)
  13
  14     @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24764")
  15     def test_all_but_c(self):
  16         self.do_test(False)
  17
  18     # There's a global symbol in libsystem on Darwin that messes up
  19     # the lookup of class C.  Breaking that test out from the others
  20     # since that is a odd failure, and I don't want it to mask the
  21     # real purpose of this test.
  22     @expectedFailureDarwin(bugnumber="<rdar://problem/28623427>")
  23     @expectedFailureAll(oslist=["windows"])
  24     def test_c(self):
  25         self.do_test(True)
  26
  27     def do_test(self, test_c):
  28         self.build()
  29
  30         # Get main source file
  31         src_file = "main.cpp"
  32         src_file_spec = lldb.SBFileSpec(src_file)
  33         self.assertTrue(src_file_spec.IsValid(), "Main source file")
  34
  35         # Get the path of the executable
  36         cwd = os.getcwd()
  37         exe_file = "a.out"
  38         exe_path = os.path.join(cwd, exe_file)
  39
  40         # Load the executable
  41         target = self.dbg.CreateTarget(exe_path)
  42         self.assertTrue(target.IsValid(), VALID_TARGET)
  43
  44         # Break on main function
  45         main_breakpoint = target.BreakpointCreateBySourceRegex(
  46             "// break here", src_file_spec)
  47         self.assertTrue(
  48             main_breakpoint.IsValid() and main_breakpoint.GetNumLocations() >= 1,
  49             VALID_BREAKPOINT)
  50
  51         # Launch the process
  52         args = None
  53         env = None
  54         process = target.LaunchSimple(
  55             args, env, self.get_process_working_directory())
  56         self.assertTrue(process.IsValid(), PROCESS_IS_VALID)
  57
  58         # Get the thread of the process
  59         self.assertTrue(
  60             process.GetState() == lldb.eStateStopped,
  61             PROCESS_STOPPED)
  62         thread = lldbutil.get_stopped_thread(
  63             process, lldb.eStopReasonBreakpoint)
  64
  65         # Get current fream of the thread at the breakpoint
  66         frame = thread.GetSelectedFrame()
  67
  68         # Test result for scopes of variables
  69
  70         global_variables = frame.GetVariables(True, True, True, False)
  71         global_variables_assert = {
  72             'A::a': 1111,
  73             'B::a': 2222,
  74             'C::a': 3333,
  75             '::a': 4444,
  76             'a': 4444
  77         }
  78
  79         self.assertTrue(
  80             global_variables.GetSize() == 4,
  81             "target variable returns all variables")
  82         for variable in global_variables:
  83             name = variable.GetName()
  84             self.assertTrue(
  85                 name in global_variables_assert,
  86                 "target variable returns wrong variable " + name)
  87
  88         for name in global_variables_assert:
  89             if name is "C::a" and not test_c:
  90                 continue
  91             if name is not "C::a" and test_c:
  92                 continue
  93
  94             value = frame.EvaluateExpression(name)
  95             assert_value = global_variables_assert[name]
  96             self.assertTrue(
  97                 value.IsValid() and value.GetValueAsSigned() == assert_value,
  98                 name + " = " + str(assert_value))