packages/Python/lldbsuite/test/lang/c/blocks/TestBlocks.py

   1 """Test that lldb can invoke blocks and access variables inside them"""
   2
   3 from __future__ import print_function
   4
   5
   6
   7 import unittest2
   8 import os, time
   9 import lldb
  10 from lldbsuite.test.lldbtest import *
  11 import lldbsuite.test.lldbutil as lldbutil
  12
  13 class BlocksTestCase(TestBase):
  14
  15     mydir = TestBase.compute_mydir(__file__)
  16     lines = []
  17
  18     def setUp(self):
  19         # Call super's setUp().
  20         TestBase.setUp(self)
  21         # Find the line numbers to break at.
  22         self.lines.append(line_number('main.c', '// Set breakpoint 0 here.'))
  23         self.lines.append(line_number('main.c', '// Set breakpoint 1 here.'))
  24
  25     @unittest2.expectedFailure("rdar://problem/10413887 - Call blocks in expressions")
  26     def test_expr(self):
  27         self.build()
  28         exe = os.path.join(os.getcwd(), "a.out")
  29         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  30
  31         self.is_started = False
  32
  33         # Break inside the foo function which takes a bar_ptr argument.
  34         for line in self.lines:
  35             lldbutil.run_break_set_by_file_and_line (self, "main.c", line, num_expected_locations=1, loc_exact=True)
  36
  37         self.wait_for_breakpoint()
  38
  39         self.expect("expression a + b", VARIABLES_DISPLAYED_CORRECTLY,
  40             substrs = ["= 7"])
  41
  42         self.expect("expression c", VARIABLES_DISPLAYED_CORRECTLY,
  43             substrs = ["= 1"])
  44
  45         self.wait_for_breakpoint()
  46
  47         # This should display correctly.
  48         self.expect("expression (int)neg (-12)", VARIABLES_DISPLAYED_CORRECTLY,
  49             substrs = ["= 12"])
  50
  51     def wait_for_breakpoint(self):
  52         if self.is_started == False:
  53             self.is_started = True
  54             self.runCmd("process launch", RUN_SUCCEEDED)
  55         else:
  56             self.runCmd("process continue", RUN_SUCCEEDED)
  57
  58         # The stop reason of the thread should be breakpoint.
  59         self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
  60             substrs = ['stopped',
  61                        'stop reason = breakpoint'])