1"""
2Test that dynamic values update their child count correctly
3"""
4
5
6import lldb
7from lldbsuite.test.decorators import *
8from lldbsuite.test.lldbtest import *
9from lldbsuite.test import lldbutil
10
11
12class DynamicValueChildCountTestCase(TestBase):
13    def setUp(self):
14        # Call super's setUp().
15        TestBase.setUp(self)
16
17        # Find the line number to break for main.c.
18
19        self.main_third_call_line = line_number(
20            "pass-to-base.cpp", "// Break here and check b has 0 children"
21        )
22        self.main_fourth_call_line = line_number(
23            "pass-to-base.cpp", "// Break here and check b still has 0 children"
24        )
25        self.main_fifth_call_line = line_number(
26            "pass-to-base.cpp", "// Break here and check b has one child now"
27        )
28        self.main_sixth_call_line = line_number(
29            "pass-to-base.cpp", "// Break here and check b has 0 children again"
30        )
31
32    @add_test_categories(["pyapi"])
33    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr24663")
34    def test_get_dynamic_vals(self):
35        """Test fetching C++ dynamic values from pointers & references."""
36        """Get argument vals for the call stack when stopped on a breakpoint."""
37        self.build()
38        exe = self.getBuildArtifact("a.out")
39
40        # Create a target from the debugger.
41
42        target = self.dbg.CreateTarget(exe)
43        self.assertTrue(target, VALID_TARGET)
44
45        # Set up our breakpoints:
46
47        third_call_bpt = target.BreakpointCreateByLocation(
48            "pass-to-base.cpp", self.main_third_call_line
49        )
50        self.assertTrue(third_call_bpt, VALID_BREAKPOINT)
51        fourth_call_bpt = target.BreakpointCreateByLocation(
52            "pass-to-base.cpp", self.main_fourth_call_line
53        )
54        self.assertTrue(fourth_call_bpt, VALID_BREAKPOINT)
55        fifth_call_bpt = target.BreakpointCreateByLocation(
56            "pass-to-base.cpp", self.main_fifth_call_line
57        )
58        self.assertTrue(fifth_call_bpt, VALID_BREAKPOINT)
59        sixth_call_bpt = target.BreakpointCreateByLocation(
60            "pass-to-base.cpp", self.main_sixth_call_line
61        )
62        self.assertTrue(sixth_call_bpt, VALID_BREAKPOINT)
63
64        # Now launch the process, and do not stop at the entry point.
65        process = target.LaunchSimple(None, None, self.get_process_working_directory())
66
67        self.assertState(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
68
69        b = self.frame().FindVariable("b").GetDynamicValue(lldb.eDynamicCanRunTarget)
70        self.assertEqual(b.GetNumChildren(), 0, "b has 0 children")
71        self.runCmd("continue")
72        self.assertEqual(b.GetNumChildren(), 0, "b still has 0 children")
73        self.runCmd("continue")
74        self.assertNotEqual(b.GetNumChildren(), 0, "b now has 1 child")
75        self.runCmd("continue")
76        self.assertEqual(b.GetNumChildren(), 0, "b didn't go back to 0 children")
77