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    def setUp(self):
17        # Call super's setUp().
18        TestBase.setUp(self)
19        # Find the line number to break inside main().
20        self.line = line_number('main.c',
21                                "// Find the line number here.")
22
23    def test_frame_utils(self):
24        """Test utility functions for the frame object."""
25        self.build()
26        exe = self.getBuildArtifact("a.out")
27
28        target = self.dbg.CreateTarget(exe)
29        self.assertTrue(target, VALID_TARGET)
30
31        breakpoint = target.BreakpointCreateByLocation("main.c", self.line)
32        self.assertTrue(breakpoint, VALID_BREAKPOINT)
33
34        # Now launch the process, and do not stop at entry point.
35        process = target.LaunchSimple(
36            None, None, self.get_process_working_directory())
37
38        if not process:
39            self.fail("SBTarget.LaunchProcess() failed")
40        self.assertState(process.GetState(), lldb.eStateStopped,
41                         PROCESS_STOPPED)
42
43        import lldbsuite.test.lldbutil as lldbutil
44        thread = lldbutil.get_stopped_thread(
45            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(
56            frame0_args and parent_args and "(int)val=1" in frame0_args)
57        if self.TraceOn():
58            lldbutil.print_stacktrace(thread)
59            print("Current frame: %s" % frame0_args)
60            print("Parent frame: %s" % parent_args)
61