TestExprs2.py   [plain text]

"""
Test some more expression commands.
"""

import os
import unittest2
import lldb
import lldbutil
from lldbtest import *

class ExprCommands2TestCase(TestBase):

    mydir = os.path.join("expression_command", "test")

    def setUp(self):
        # Call super's setUp().
        TestBase.setUp(self)
        # Find the line number to break for main.c.
        self.line = line_number('main.cpp',
                                '// Please test many expressions while stopped at this line:')

    @expectedFailurei386
    def test_more_expr_commands(self):
        """Test some more expression commands."""
        self.buildDefault()

        self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)

        lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.line, num_expected_locations=1,loc_exact=False)

        self.runCmd("run", RUN_SUCCEEDED)

        # Does static casting work?
        self.expect("expression (int*)argv",
            startstr = "(int *) $0 = 0x")
        # (int *) $0 = 0x00007fff5fbff258

        # Do anonymous symbols work?
        self.expect("expression ((char**)environ)[0]",
            startstr = "(char *) $1 = 0x")
        # (char *) $1 = 0x00007fff5fbff298 "Apple_PubSub_Socket_Render=/tmp/launch-7AEsUD/Render"

        # Do return values containing the contents of expression locals work?
        self.expect("expression int i = 5; i",
            startstr = "(int) $2 = 5")
        # (int) $2 = 5
        self.expect("expression $2 + 1",
            startstr = "(int) $3 = 6")
        # (int) $3 = 6

        # Do return values containing the results of static expressions work?
        self.expect("expression 20 + 3",
            startstr = "(int) $4 = 23")
        # (int) $4 = 5
        self.expect("expression $4 + 1",
            startstr = "(int) $5 = 24")
        # (int) $5 = 6


if __name__ == '__main__':
    import atexit
    lldb.SBDebugger.Initialize()
    atexit.register(lambda: lldb.SBDebugger.Terminate())
    unittest2.main()