1"""
2Test example snippets from the lldb 'help expression' output.
3"""
4
5
6
7import lldb
8from lldbsuite.test.decorators import *
9from lldbsuite.test.lldbtest import *
10from lldbsuite.test import lldbutil
11
12
13class Radar9673644TestCase(TestBase):
14
15    mydir = TestBase.compute_mydir(__file__)
16
17    def setUp(self):
18        # Call super's setUp().
19        TestBase.setUp(self)
20        # Find the line number to break inside main().
21        self.main_source = "main.c"
22        self.line = line_number(self.main_source, '// Set breakpoint here.')
23
24    def test_expr_commands(self):
25        """The following expression commands should just work."""
26        self.build()
27
28        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
29
30        lldbutil.run_break_set_by_file_and_line(
31            self,
32            self.main_source,
33            self.line,
34            num_expected_locations=1,
35            loc_exact=True)
36
37        self.runCmd("run", RUN_SUCCEEDED)
38
39        # rdar://problem/9673664 lldb expression evaluation problem
40
41        self.expect('expr char str[] = "foo"; str[0]',
42                    substrs=["'f'"])
43        # runCmd: expr char c[] = "foo"; c[0]
44        # output: (char) $0 = 'f'
45