lldb/test/API/lang/cpp/char1632_t/TestChar1632T.py

   1 # coding=utf8
   2 """
   3 Test that the C++11 support for char16_t and char32_t works correctly.
   4 """
   5
   6
   7 import lldb
   8 from lldbsuite.test.decorators import *
   9 from lldbsuite.test.lldbtest import *
  10 from lldbsuite.test import lldbutil
  11
  12
  13 class Char1632TestCase(TestBase):
  14     def setUp(self):
  15         # Call super's setUp().
  16         TestBase.setUp(self)
  17         # Find the line number to break for main.cpp.
  18         self.source = "main.cpp"
  19         self.lines = [
  20             line_number(self.source, "// breakpoint1"),
  21             line_number(self.source, "// breakpoint2"),
  22         ]
  23
  24     @expectedFailureAll(
  25         compiler="icc",
  26         bugnumber="ICC (13.1) does not emit the DW_TAG_base_type for char16_t and char32_t.",
  27     )
  28     def test(self):
  29         """Test that the C++11 support for char16_t and char32_t works correctly."""
  30         self.build()
  31         exe = self.getBuildArtifact("a.out")
  32
  33         # Create a target by the debugger.
  34         target = self.dbg.CreateTarget(exe)
  35         self.assertTrue(target, VALID_TARGET)
  36
  37         # Set breakpoints
  38         for line in self.lines:
  39             lldbutil.run_break_set_by_file_and_line(self, "main.cpp", line)
  40
  41         # Now launch the process, and do not stop at entry point and stop at
  42         # breakpoint1
  43         process = target.LaunchSimple(None, None, self.get_process_working_directory())
  44
  45         if not process:
  46             self.fail("SBTarget.Launch() failed")
  47
  48         if self.TraceOn():
  49             self.runCmd("frame variable")
  50
  51         # Check that we correctly report the const types
  52         self.expect(
  53             "frame variable cs16 cs32",
  54             substrs=[
  55                 "(const char16_t *) cs16 = ",
  56                 'u"hello world ྒྙྐ"',
  57                 "(const char32_t *) cs32 = ",
  58                 'U"hello world ྒྙྐ"',
  59             ],
  60         )
  61
  62         # Check that we correctly report the non-const types
  63         self.expect(
  64             "frame variable s16 s32",
  65             substrs=[
  66                 "(char16_t *) s16 = ",
  67                 'u"ﺸﺵۻ"',
  68                 "(char32_t *) s32 = ",
  69                 'U"ЕЙРГЖО"',
  70             ],
  71         )
  72
  73         # Check that we correctly report the array types
  74         self.expect(
  75             "frame variable as16 as32",
  76             patterns=[
  77                 "\(char16_t\[[0-9]+\]\) as16 = ",
  78                 "\(char32_t\[[0-9]+\]\) as32 = ",
  79             ],
  80             substrs=['u"ﺸﺵۻ"', 'U"ЕЙРГЖО"'],
  81         )
  82
  83         self.runCmd("next")  # step to after the string is nullified
  84
  85         # check that we don't crash on NULL
  86         self.expect("frame variable s32", substrs=["(char32_t *) s32 = 0x00000000"])
  87
  88         # continue and hit breakpoint2
  89         self.runCmd("continue")
  90
  91         # check that the new strings show
  92         self.expect(
  93             "frame variable s16 s32",
  94             substrs=[
  95                 "(char16_t *) s16 = 0x",
  96                 '"色ハ匂ヘト散リヌルヲ"',
  97                 "(char32_t *) s32 = ",
  98                 '"෴"',
  99             ],
 100         )
 101
 102         # check the same as above for arrays
 103         self.expect(
 104             "frame variable as16 as32",
 105             patterns=[
 106                 "\(char16_t\[[0-9]+\]\) as16 = ",
 107                 "\(char32_t\[[0-9]+\]\) as32 = ",
 108             ],
 109             substrs=['"色ハ匂ヘト散リヌルヲ"', '"෴"'],
 110         )
 111
 112         # check that zero values are properly handles
 113         self.expect_expr("cs16_zero", result_summary="U+0000 u'\\0'")
 114         self.expect_expr("cs32_zero", result_summary="U+0x00000000 U'\\0'")
 115
 116         # Check that we can run expressions that return charN_t
 117         self.expect_expr("u'a'", result_type="char16_t", result_summary="U+0061 u'a'")
 118         self.expect_expr(
 119             "U'a'", result_type="char32_t", result_summary="U+0x00000061 U'a'"
 120         )