lldb/test/API/python_api/value_var_update/TestValueVarUpdate.py

   1 """Test SBValue::GetValueDidChange"""
   2
   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 ValueVarUpdateTestCase(TestBase):
  11     def test_with_process_launch_api(self):
  12         """Test SBValue::GetValueDidChange"""
  13         # Get the full path to our executable to be attached/debugged.
  14         exe = self.getBuildArtifact(self.testMethodName)
  15         d = {"EXE": exe}
  16         self.build(dictionary=d)
  17         self.setTearDownCleanup(dictionary=d)
  18         target = self.dbg.CreateTarget(exe)
  19
  20         breakpoint = target.BreakpointCreateBySourceRegex(
  21             "break here", lldb.SBFileSpec("main.c")
  22         )
  23
  24         self.runCmd("run", RUN_SUCCEEDED)
  25
  26         # The stop reason of the thread should be breakpoint.
  27         self.expect(
  28             "thread list",
  29             STOPPED_DUE_TO_BREAKPOINT,
  30             substrs=["stopped", "stop reason = breakpoint"],
  31         )
  32
  33         i = self.frame().FindVariable("i")
  34         i_val = i.GetValueAsUnsigned(0)
  35         c = self.frame().FindVariable("c")
  36
  37         # Update any values from the SBValue objects so we can ask them if they
  38         # changed after a continue
  39         i.GetValueDidChange()
  40         c.GetChildAtIndex(1).GetValueDidChange()
  41         c.GetChildAtIndex(0).GetChildAtIndex(0).GetValueDidChange()
  42
  43         if self.TraceOn():
  44             self.runCmd("frame variable")
  45
  46         self.runCmd("continue")
  47
  48         if self.TraceOn():
  49             self.runCmd("frame variable")
  50
  51         self.assertNotEqual(
  52             i_val, i.GetValueAsUnsigned(0), "GetValue() is saying a lie"
  53         )
  54         self.assertTrue(i.GetValueDidChange(), "GetValueDidChange() is saying a lie")
  55
  56         # Check complex type
  57         self.assertTrue(
  58             c.GetChildAtIndex(0).GetChildAtIndex(0).GetValueDidChange()
  59             and not c.GetChildAtIndex(1).GetValueDidChange(),
  60             "GetValueDidChange() is saying a lie",
  61         )