packages/Python/lldbsuite/test/functionalities/thread/thread_exit/TestThreadExit.py

   1 """
   2 Test number of threads.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8
   9 import os, time
  10 import lldb
  11 from lldbsuite.test.lldbtest import *
  12 import lldbsuite.test.lldbutil as lldbutil
  13
  14 class ThreadExitTestCase(TestBase):
  15
  16     mydir = TestBase.compute_mydir(__file__)
  17
  18     def setUp(self):
  19         # Call super's setUp().
  20         TestBase.setUp(self)
  21         # Find the line numbers for our breakpoints.
  22         self.break_1 = line_number('main.cpp', '// Set first breakpoint here')
  23         self.break_2 = line_number('main.cpp', '// Set second breakpoint here')
  24         self.break_3 = line_number('main.cpp', '// Set third breakpoint here')
  25         self.break_4 = line_number('main.cpp', '// Set fourth breakpoint here')
  26
  27     @expectedFailureWindows("llvm.org/pr24681")
  28     def test(self):
  29         """Test thread exit handling."""
  30         self.build(dictionary=self.getBuildFlags())
  31         exe = os.path.join(os.getcwd(), "a.out")
  32         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  33
  34         # This should create a breakpoint with 1 location.
  35         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_1, num_expected_locations=1)
  36         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_2, num_expected_locations=1)
  37         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_3, num_expected_locations=1)
  38         lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.break_4, num_expected_locations=1)
  39
  40         # The breakpoint list should show 1 locations.
  41         self.expect("breakpoint list -f", "Breakpoint location shown correctly",
  42             substrs = ["1: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.break_1,
  43                        "2: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.break_2,
  44                        "3: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.break_3,
  45                        "4: file = 'main.cpp', line = %d, exact_match = 0, locations = 1" % self.break_4])
  46
  47         # Run the program.
  48         self.runCmd("run", RUN_SUCCEEDED)
  49
  50         # The stop reason of the thread should be breakpoint 1.
  51         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT + " 1",
  52             substrs = ['stopped',
  53                        '* thread #1',
  54                        'stop reason = breakpoint 1',
  55                        'thread #2'])
  56
  57         # Get the target process
  58         target = self.dbg.GetSelectedTarget()
  59         process = target.GetProcess()
  60
  61         # Get the number of threads
  62         num_threads = process.GetNumThreads()
  63
  64         self.assertTrue(num_threads == 2, 'Number of expected threads and actual threads do not match at breakpoint 1.')
  65
  66         # Run to the second breakpoint
  67         self.runCmd("continue")
  68
  69         # The stop reason of the thread should be breakpoint 1.
  70         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT + " 2",
  71             substrs = ['stopped',
  72                        'thread #1',
  73                        'thread #2',
  74                        'stop reason = breakpoint 2',
  75                        'thread #3'])
  76
  77         # Update the number of threads
  78         num_threads = process.GetNumThreads()
  79
  80         self.assertTrue(num_threads == 3, 'Number of expected threads and actual threads do not match at breakpoint 2.')
  81
  82         # Run to the third breakpoint
  83         self.runCmd("continue")
  84
  85         # The stop reason of the thread should be breakpoint 3.
  86         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT + " 3",
  87             substrs = ['stopped',
  88                        'thread #1',
  89                        'stop reason = breakpoint 3',
  90                        'thread #3',
  91                        ])
  92
  93         # Update the number of threads
  94         num_threads = process.GetNumThreads()
  95
  96         self.assertTrue(num_threads == 2, 'Number of expected threads and actual threads do not match at breakpoint 3.')
  97
  98         # Run to the fourth breakpoint
  99         self.runCmd("continue")
 100
 101         # The stop reason of the thread should be breakpoint 4.
 102         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT + " 4",
 103             substrs = ['stopped',
 104                        'thread #1',
 105                        'stop reason = breakpoint 4'])
 106
 107         # Update the number of threads
 108         num_threads = process.GetNumThreads()
 109
 110         self.assertTrue(num_threads == 1, 'Number of expected threads and actual threads do not match at breakpoint 4.')
 111
 112         # Run to completion
 113         self.runCmd("continue")
 114
 115         # At this point, the inferior process should have exited.
 116         self.assertTrue(process.GetState() == lldb.eStateExited, PROCESS_EXITED)