packages/Python/lldbsuite/test/lang/objc/foundation/TestRuntimeTypes.py

   1 """
   2 Test that Objective-C methods from the runtime work correctly.
   3 """
   4
   5 from __future__ import print_function
   6
   7
   8 import os
   9 import time
  10 import lldb
  11 from lldbsuite.test.decorators import *
  12 from lldbsuite.test.lldbtest import *
  13 from lldbsuite.test import lldbutil
  14
  15
  16 @skipUnlessDarwin
  17 class RuntimeTypesTestCase(TestBase):
  18
  19     mydir = TestBase.compute_mydir(__file__)
  20
  21     @expectedFailureAll(
  22         oslist=["macosx"],
  23         debug_info="gmodules",
  24         bugnumber="llvm.org/pr27862")
  25     def test_break(self):
  26         """Test setting objc breakpoints using '_regexp-break' and 'breakpoint set'."""
  27         if self.getArchitecture() != 'x86_64':
  28             self.skipTest("This only applies to the v2 runtime")
  29
  30         self.build()
  31         exe = os.path.join(os.getcwd(), "a.out")
  32         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
  33
  34         # Stop at -[MyString description].
  35         lldbutil.run_break_set_by_symbol(
  36             self,
  37             '-[MyString description]',
  38             num_expected_locations=1,
  39             sym_exact=True)
  40
  41         self.runCmd("run", RUN_SUCCEEDED)
  42
  43         # The backtrace should show we stop at -[MyString description].
  44         self.expect("thread backtrace", "Stop at -[MyString description]",
  45                     substrs=["a.out`-[MyString description]"])
  46
  47         # Use runtime information about NSString.
  48
  49         # The length property should be usable.
  50         self.expect("expression str.length", VARIABLES_DISPLAYED_CORRECTLY,
  51                     patterns=[r"(\(unsigned long long\))|\(NSUInteger\)"])
  52
  53         # Static methods on NSString should work.
  54         self.expect(
  55             "expr [NSString stringWithCString:\"foo\" encoding:1]",
  56             VALID_TYPE,
  57             substrs=[
  58                 "(id)",
  59                 "$1"])
  60
  61         self.expect("po $1", VARIABLES_DISPLAYED_CORRECTLY,
  62                     substrs=["foo"])