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