packages/Python/lldbsuite/test/python_api/lldbutil/frame/TestFrameUtils.py

   1 """
   2 Test utility functions for the frame object.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import os
   9 import lldb
  10 from lldbsuite.test.decorators import *
  11 from lldbsuite.test.lldbtest import *
  12 from lldbsuite.test import lldbutil
  13
  14
  15 class FrameUtilsTestCase(TestBase):
  16
  17     mydir = TestBase.compute_mydir(__file__)
  18
  19     def setUp(self):
  20         # Call super's setUp().
  21         TestBase.setUp(self)
  22         # Find the line number to break inside main().
  23         self.line = line_number('main.c',
  24                                 "// Find the line number here.")
  25
  26     @add_test_categories(['pyapi'])
  27     def test_frame_utils(self):
  28         """Test utility functions for the frame object."""
  29         self.build()
  30         exe = self.getBuildArtifact("a.out")
  31
  32         target = self.dbg.CreateTarget(exe)
  33         self.assertTrue(target, VALID_TARGET)
  34
  35         breakpoint = target.BreakpointCreateByLocation("main.c", self.line)
  36         self.assertTrue(breakpoint, VALID_BREAKPOINT)
  37
  38         # Now launch the process, and do not stop at entry point.
  39         process = target.LaunchSimple(
  40             None, None, self.get_process_working_directory())
  41
  42         if not process:
  43             self.fail("SBTarget.LaunchProcess() failed")
  44         self.assertTrue(process.GetState() == lldb.eStateStopped,
  45                         PROCESS_STOPPED)
  46
  47         import lldbsuite.test.lldbutil as lldbutil
  48         thread = lldbutil.get_stopped_thread(
  49             process, lldb.eStopReasonBreakpoint)
  50         self.assertTrue(thread)
  51         frame0 = thread.GetFrameAtIndex(0)
  52         self.assertTrue(frame0)
  53         frame1 = thread.GetFrameAtIndex(1)
  54         self.assertTrue(frame1)
  55         parent = lldbutil.get_parent_frame(frame0)
  56         self.assertTrue(parent and parent.GetFrameID() == frame1.GetFrameID())
  57         frame0_args = lldbutil.get_args_as_string(frame0)
  58         parent_args = lldbutil.get_args_as_string(parent)
  59         self.assertTrue(
  60             frame0_args and parent_args and "(int)val=1" in frame0_args)
  61         if self.TraceOn():
  62             lldbutil.print_stacktrace(thread)
  63             print("Current frame: %s" % frame0_args)
  64             print("Parent frame: %s" % parent_args)