1"""
2Make sure the stop reason of a thread that did not run
3during an expression is not changed by running the expression
4"""
5
6
7
8import lldb
9import lldbsuite.test.lldbutil as lldbutil
10from lldbsuite.test.lldbtest import *
11
12
13class TestStopReasonAfterExpression(TestBase):
14
15    mydir = TestBase.compute_mydir(__file__)
16
17    def test_thread_state_after_expr(self):
18        self.build()
19        self.main_source_file = lldb.SBFileSpec("main.cpp")
20        self.do_test()
21
22    def do_test(self):
23        (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
24            "Set a breakpoint here", self.main_source_file)
25
26        self.assertEqual(bkpt.GetNumLocations(), 2, "Got two locations")
27
28        # So now thread holds the main thread.  Continue to hit the
29        # breakpoint again on the spawned thread:
30
31        threads = lldbutil.continue_to_breakpoint(process, bkpt)
32        self.assertEqual(len(threads), 1, "Hit the breakpoint the second time")
33        other_thread = threads[0]
34
35        self.assertNotEqual(thread.GetThreadID(), other_thread.GetThreadID(),
36                            "A different thread")
37        # Run an expression ONLY on other_thread.  Don't let thread run:
38        options = lldb.SBExpressionOptions()
39        options.SetTryAllThreads(False)
40        options.SetStopOthers(True)
41
42        result = thread.frames[0].EvaluateExpression('(int) printf("Hello\\n")', options)
43        self.assertTrue(result.GetError().Success(),
44                        "Expression failed: '%s'"%(result.GetError().GetCString()))
45
46        stop_reason = other_thread.GetStopReason()
47
48        self.assertEqual(stop_reason, lldb.eStopReasonBreakpoint,
49                         "Still records stopped at breakpoint: %s"
50                         %(lldbutil.stop_reason_to_str(stop_reason)))
51        self.assertEqual(other_thread.GetStopReasonDataAtIndex(0), 1,
52                         "Still records stopped at right breakpoint")
53
54