#!/usr/bin/python
#pylint: disable=C0111

import unittest

import common
from autotest_lib.client.common_lib import utils


def test_function(arg1, arg2, arg3, arg4=4, arg5=5, arg6=6):
    """Test global function.
    """


class TestClass(object):
    """Test class.
    """

    def test_instance_function(self, arg1, arg2, arg3, arg4=4, arg5=5, arg6=6):
        """Test instance function.
        """


    @classmethod
    def test_class_function(cls, arg1, arg2, arg3, arg4=4, arg5=5, arg6=6):
        """Test class function.
        """


    @staticmethod
    def test_static_function(arg1, arg2, arg3, arg4=4, arg5=5, arg6=6):
        """Test static function.
        """


class GetFunctionArgUnittest(unittest.TestCase):
    """Tests for method get_function_arg_value."""

    def run_test(self, func, insert_arg):
        """Run test.

        @param func: Function being called with given arguments.
        @param insert_arg: Set to True to insert an object in the argument list.
                           This is to mock instance/class object.
        """
        if insert_arg:
            args = (None, 1, 2, 3)
        else:
            args = (1, 2, 3)
        for i in range(1, 7):
            self.assertEquals(utils.get_function_arg_value(
                    func, 'arg%d'%i, args, {}), i)

        self.assertEquals(utils.get_function_arg_value(
                func, 'arg7', args, {'arg7': 7}), 7)
        self.assertRaises(
                KeyError, utils.get_function_arg_value,
                func, 'arg3', args[:-1], {})


    def test_global_function(self):
        """Test global function.
        """
        self.run_test(test_function, False)


    def test_instance_function(self):
        """Test instance function.
        """
        self.run_test(TestClass().test_instance_function, True)


    def test_class_function(self):
        """Test class function.
        """
        self.run_test(TestClass.test_class_function, True)


    def test_static_function(self):
        """Test static function.
        """
        self.run_test(TestClass.test_static_function, False)


if __name__ == "__main__":
    unittest.main()