xref: /llvm-project/lldb/test/API/lang/cpp/char1632_t/TestChar1632T.py (revision 2238dcc39358353cac21df75c3c3286ab20b8f53) 
1# coding=utf8
2"""
3Test that the C++11 support for char16_t and char32_t works correctly.
4"""
5
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11
12
13class 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        )
121