xref: /llvm-project/lldb/test/API/python_api/value_var_update/TestValueVarUpdate.py (revision 2238dcc39358353cac21df75c3c3286ab20b8f53) 
1"""Test SBValue::GetValueDidChange"""
2
3
4import lldb
5from lldbsuite.test.decorators import *
6from lldbsuite.test.lldbtest import *
7from lldbsuite.test import lldbutil
8
9
10class ValueVarUpdateTestCase(TestBase):
11    def test_with_process_launch_api(self):
12        """Test SBValue::GetValueDidChange"""
13        # Get the full path to our executable to be attached/debugged.
14        exe = self.getBuildArtifact(self.testMethodName)
15        d = {"EXE": exe}
16        self.build(dictionary=d)
17        self.setTearDownCleanup(dictionary=d)
18        target = self.dbg.CreateTarget(exe)
19
20        breakpoint = target.BreakpointCreateBySourceRegex(
21            "break here", lldb.SBFileSpec("main.c")
22        )
23
24        self.runCmd("run", RUN_SUCCEEDED)
25
26        # The stop reason of the thread should be breakpoint.
27        self.expect(
28            "thread list",
29            STOPPED_DUE_TO_BREAKPOINT,
30            substrs=["stopped", "stop reason = breakpoint"],
31        )
32
33        i = self.frame().FindVariable("i")
34        i_val = i.GetValueAsUnsigned(0)
35        c = self.frame().FindVariable("c")
36
37        # Update any values from the SBValue objects so we can ask them if they
38        # changed after a continue
39        i.GetValueDidChange()
40        c.GetChildAtIndex(1).GetValueDidChange()
41        c.GetChildAtIndex(0).GetChildAtIndex(0).GetValueDidChange()
42
43        if self.TraceOn():
44            self.runCmd("frame variable")
45
46        self.runCmd("continue")
47
48        if self.TraceOn():
49            self.runCmd("frame variable")
50
51        self.assertNotEqual(
52            i_val, i.GetValueAsUnsigned(0), "GetValue() is saying a lie"
53        )
54        self.assertTrue(i.GetValueDidChange(), "GetValueDidChange() is saying a lie")
55
56        # Check complex type
57        self.assertTrue(
58            c.GetChildAtIndex(0).GetChildAtIndex(0).GetValueDidChange()
59            and not c.GetChildAtIndex(1).GetValueDidChange(),
60            "GetValueDidChange() is saying a lie",
61        )
62