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1"""
2Test utility functions for the frame object.
3"""
4
5import os
6import unittest2
7import lldb
8from lldbtest import *
9
10class FrameUtilsTestCase(TestBase):
11
12    mydir = os.path.join("python_api", "lldbutil", "frame")
13
14    def setUp(self):
15        # Call super's setUp().
16        TestBase.setUp(self)
17        # Find the line number to break inside main().
18        self.line = line_number('main.c',
19                                "// Find the line number here.")
20
21    @python_api_test
22    def test_frame_utils(self):
23        """Test utility functions for the frame object."""
24        self.buildDefault()
25        self.frame_utils()
26
27    def frame_utils(self):
28        exe = os.path.join(os.getcwd(), "a.out")
29
30        target = self.dbg.CreateTarget(exe)
31        self.assertTrue(target, VALID_TARGET)
32
33        breakpoint = target.BreakpointCreateByLocation("main.c", self.line)
34        self.assertTrue(breakpoint, VALID_BREAKPOINT)
35
36        # Now launch the process, and do not stop at entry point.
37        process = target.LaunchSimple(None, None, os.getcwd())
38
39        if not process:
40            self.fail("SBTarget.LaunchProcess() failed")
41        self.assertTrue(process.GetState() == lldb.eStateStopped,
42                        PROCESS_STOPPED)
43
44        import lldbutil
45        thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint)
46        self.assertTrue (thread)
47        frame0 = thread.GetFrameAtIndex(0)
48        self.assertTrue (frame0)
49        frame1 = thread.GetFrameAtIndex(1)
50        self.assertTrue (frame1)
51        parent = lldbutil.get_parent_frame(frame0)
52        self.assertTrue(parent and parent.GetFrameID() == frame1.GetFrameID())
53        frame0_args = lldbutil.get_args_as_string(frame0)
54        parent_args = lldbutil.get_args_as_string(parent)
55        self.assertTrue(frame0_args and parent_args and "(int)val=1" in frame0_args)
56        if self.TraceOn():
57            lldbutil.print_stacktrace(thread)
58            print "Current frame: %s" % frame0_args
59            print "Parent frame: %s" % parent_args
60
61
62if __name__ == '__main__':
63    import atexit
64    lldb.SBDebugger.Initialize()
65    atexit.register(lambda: lldb.SBDebugger.Terminate())
66    unittest2.main()
67