packages/Python/lldbsuite/test/lang/objc/global_ptrs/TestGlobalObjects.py

   1 """Test that a global ObjC object found before the process is started updates correctly."""
   2
   3 from __future__ import print_function
   4
   5
   6 import os
   7 import time
   8 import lldb
   9 from lldbsuite.test.decorators import *
  10 from lldbsuite.test.lldbtest import *
  11 from lldbsuite.test import lldbutil
  12
  13
  14 class TestObjCGlobalVar(TestBase):
  15
  16     mydir = TestBase.compute_mydir(__file__)
  17
  18     def setUp(self):
  19         # Call super's setUp().
  20         TestBase.setUp(self)
  21         self.main_source = lldb.SBFileSpec("main.m")
  22
  23     @skipUnlessDarwin
  24     @add_test_categories(['pyapi'])
  25     def test_with_python_api(self):
  26         """Test that a global ObjC object found before the process is started updates correctly."""
  27         self.build()
  28         exe = os.path.join(os.getcwd(), "a.out")
  29
  30         target = self.dbg.CreateTarget(exe)
  31         self.assertTrue(target, VALID_TARGET)
  32
  33         bkpt = target.BreakpointCreateBySourceRegex('NSLog', self.main_source)
  34         self.assertTrue(bkpt, VALID_BREAKPOINT)
  35
  36         # Before we launch, make an SBValue for our global object pointer:
  37         g_obj_ptr = target.FindFirstGlobalVariable("g_obj_ptr")
  38         self.assertTrue(g_obj_ptr.GetError().Success(), "Made the g_obj_ptr")
  39         self.assertTrue(
  40             g_obj_ptr.GetValueAsUnsigned(10) == 0,
  41             "g_obj_ptr is initially null")
  42
  43         # Now launch the process, and do not stop at entry point.
  44         process = target.LaunchSimple(
  45             None, None, self.get_process_working_directory())
  46
  47         self.assertTrue(process, PROCESS_IS_VALID)
  48
  49         # The stop reason of the thread should be breakpoint.
  50         threads = lldbutil.get_threads_stopped_at_breakpoint(process, bkpt)
  51         if len(threads) != 1:
  52             self.fail("Failed to stop at breakpoint 1.")
  53
  54         thread = threads[0]
  55
  56         dyn_value = g_obj_ptr.GetDynamicValue(lldb.eDynamicCanRunTarget)
  57         self.assertTrue(
  58             dyn_value.GetError().Success(),
  59             "Dynamic value is valid")
  60         self.assertTrue(dyn_value.GetObjectDescription() == "Some NSString")