1"""Test settings and readings of program variables."""
2
3import os, time
4import unittest2
5import lldb
6from lldbtest import *
7import lldbutil
8
9class SetValuesTestCase(TestBase):
10
11    mydir = os.path.join("lang", "c", "set_values")
12
13    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
14    @dsym_test
15    def test_with_dsym(self):
16        """Test settings and readings of program variables."""
17        self.buildDsym()
18        self.set_values()
19
20    @dwarf_test
21    def test_with_dwarf(self):
22        """Test settings and readings of program variables."""
23        self.buildDwarf()
24        self.set_values()
25
26    def setUp(self):
27        # Call super's setUp().
28        TestBase.setUp(self)
29        # Find the line numbers to break inside main().
30        self.line1 = line_number('main.c', '// Set break point #1.')
31        self.line2 = line_number('main.c', '// Set break point #2.')
32        self.line3 = line_number('main.c', '// Set break point #3.')
33        self.line4 = line_number('main.c', '// Set break point #4.')
34        self.line5 = line_number('main.c', '// Set break point #5.')
35
36    def set_values(self):
37        """Test settings and readings of program variables."""
38        exe = os.path.join(os.getcwd(), "a.out")
39        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
40
41        # Set breakpoints on several places to set program variables.
42        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line1, num_expected_locations=1, loc_exact=True)
43
44        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line2, num_expected_locations=1, loc_exact=True)
45
46        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line3, num_expected_locations=1, loc_exact=True)
47
48        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line4, num_expected_locations=1, loc_exact=True)
49
50        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line5, num_expected_locations=1, loc_exact=True)
51
52        self.runCmd("run", RUN_SUCCEEDED)
53
54        # The stop reason of the thread should be breakpoint.
55        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
56            substrs = ['stopped',
57                       'stop reason = breakpoint'])
58
59        # The breakpoint should have a hit count of 1.
60        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
61            substrs = [' resolved, hit count = 1'])
62
63        # main.c:15
64        # Check that 'frame variable --show-types' displays the correct data type and value.
65        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
66            startstr = "(char) i = 'a'")
67
68        # Now set variable 'i' and check that it is correctly displayed.
69        self.runCmd("expression i = 'b'")
70        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
71            startstr = "(char) i = 'b'")
72
73        self.runCmd("continue")
74
75        # main.c:36
76        # Check that 'frame variable --show-types' displays the correct data type and value.
77        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
78            patterns = ["\((short unsigned int|unsigned short)\) i = 33"])
79
80        # Now set variable 'i' and check that it is correctly displayed.
81        self.runCmd("expression i = 333")
82        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
83            patterns = ["\((short unsigned int|unsigned short)\) i = 333"])
84
85        self.runCmd("continue")
86
87        # main.c:57
88        # Check that 'frame variable --show-types' displays the correct data type and value.
89        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
90            startstr = "(long) i = 33")
91
92        # Now set variable 'i' and check that it is correctly displayed.
93        self.runCmd("expression i = 33333")
94        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
95            startstr = "(long) i = 33333")
96
97        self.runCmd("continue")
98
99        # main.c:78
100        # Check that 'frame variable --show-types' displays the correct data type and value.
101        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
102            startstr = "(double) i = 3.14159")
103
104        # Now set variable 'i' and check that it is correctly displayed.
105        self.runCmd("expression i = 3.14")
106        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
107            startstr = "(double) i = 3.14")
108
109        self.runCmd("continue")
110
111        # main.c:85
112        # Check that 'frame variable --show-types' displays the correct data type and value.
113        # rdar://problem/8422727
114        # set_values test directory: 'frame variable' shows only (long double) i =
115        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
116            startstr = "(long double) i = 3.14159")
117
118        # Now set variable 'i' and check that it is correctly displayed.
119        self.runCmd("expression i = 3.1")
120        self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY,
121            startstr = "(long double) i = 3.1")
122
123
124if __name__ == '__main__':
125    import atexit
126    lldb.SBDebugger.Initialize()
127    atexit.register(lambda: lldb.SBDebugger.Terminate())
128    unittest2.main()
129