1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
"""
Use lldb Python API to make sure the dynamic checkers are doing their jobs.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ObjCCheckerTestCase(TestBase):
NO_DEBUG_INFO_TESTCASE = True
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.c.
self.source_name = "main.m"
@add_test_categories(["pyapi"])
def test_objc_checker(self):
"""Test that checkers catch unrecognized selectors"""
if self.getArchitecture() == "i386":
self.skipTest("requires Objective-C 2.0 runtime")
self.build()
exe = self.getBuildArtifact("a.out")
# Create a target from the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
# Set up our breakpoints:
main_bkpt = target.BreakpointCreateBySourceRegex(
"Set a breakpoint here.", lldb.SBFileSpec(self.source_name)
)
self.assertTrue(
main_bkpt and main_bkpt.GetNumLocations() == 1, VALID_BREAKPOINT
)
# Now launch the process, and do not stop at the entry point.
process = target.LaunchSimple(None, None, self.get_process_working_directory())
self.assertState(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
threads = lldbutil.get_threads_stopped_at_breakpoint(process, main_bkpt)
self.assertEqual(len(threads), 1)
thread = threads[0]
#
# The class Simple doesn't have a count method. Make sure that we don't
# actually try to send count but catch it as an unrecognized selector.
frame = thread.GetFrameAtIndex(0)
expr_value = frame.EvaluateExpression("(int) [my_simple count]", False)
expr_error = expr_value.GetError()
self.assertTrue(expr_error.Fail())
# Make sure the call produced no NSLog stdout.
stdout = process.GetSTDOUT(100)
self.assertTrue(stdout is None or (len(stdout) == 0))
# Make sure the error is helpful:
err_string = expr_error.GetCString()
self.assertIn("selector", err_string)
#
# Check that we correctly insert the checker for an
# ObjC method with the struct return convention.
# Getting this wrong would cause us to call the checker
# with the wrong arguments, and the checker would crash
# So I'm just checking "expression runs successfully" here:
#
expr_value = frame.EvaluateExpression("[my_simple getBigStruct]", False)
expr_error = expr_value.GetError()
self.assertSuccess(expr_error)
|
