TestFunctionTypes.py revision de2f1ed2a5dfe306aa6c5d48baf65808608cefb5 
1"""Test variable with function ptr type and that break on the function works."""
2
3import os, time
4import unittest2
5import lldb
6from lldbtest import *
7
8class FunctionTypesTestCase(TestBase):
9
10    mydir = os.path.join("lang", "c", "function_types")
11
12    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
13    def test_with_dsym(self):
14        """Test 'callback' has function ptr type, then break on the function."""
15        self.buildDsym()
16        self.function_types()
17
18    def test_with_dwarf(self):
19        """Test 'callback' has function ptr type, then break on the function."""
20        self.buildDwarf()
21        self.function_types()
22
23    def setUp(self):
24        # Call super's setUp().
25        TestBase.setUp(self)
26        # Find the line number to break inside main().
27        self.line = line_number('main.c', '// Set break point at this line.')
28
29    def function_types(self):
30        """Test 'callback' has function ptr type, then break on the function."""
31        exe = os.path.join(os.getcwd(), "a.out")
32        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
33
34        # Break inside the main.
35        self.expect("breakpoint set -f main.c -l %d" % self.line,
36                    BREAKPOINT_CREATED,
37            startstr = "Breakpoint created: 1: file ='main.c', line = %d, locations = 1" %
38                        self.line)
39
40        self.runCmd("run", RUN_SUCCEEDED)
41
42        # The stop reason of the thread should be breakpoint.
43        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
44            substrs = ['stopped',
45                       'stop reason = breakpoint'])
46
47        # The breakpoint should have a hit count of 1.
48        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
49            substrs = [' resolved, hit count = 1'])
50
51        # Check that the 'callback' variable display properly.
52        self.expect("frame variable -T callback", VARIABLES_DISPLAYED_CORRECTLY,
53            startstr = '(int (*)(const char *)) callback =')
54
55        # And that we can break on the callback function.
56        self.runCmd("breakpoint set -n string_not_empty", BREAKPOINT_CREATED)
57        self.runCmd("continue")
58
59        # Check that we do indeed stop on the string_not_empty function.
60        self.expect("process status", STOPPED_DUE_TO_BREAKPOINT,
61            substrs = ['a.out`string_not_empty',
62                       'stop reason = breakpoint'])
63
64
65if __name__ == '__main__':
66    import atexit
67    lldb.SBDebugger.Initialize()
68    atexit.register(lambda: lldb.SBDebugger.Terminate())
69    unittest2.main()
70