在Python中初始化新实例

Rudziankoŭ 发表于 Dev

Rudziankoŭ

我正在Python上从头到尾编写单元测试。当我注意到我的游戏对象并不能实例化每种方法时，我感到非常困惑。

这里是我在说什么：

def test_satisfactory_field_occupation(self):
        play = tictactoe.Play()
        play.make_move("+", 1, 1)
        self.assertEqual(play.check_satisfaction(1, 1), "Field has been already occupied, try again")

def test_satisfactory_success(self):
        play = tictactoe.Play()
        self.assertEqual(play.check_satisfaction(1, 1), "Ok")

我发现异常：

FAIL: test_satisfactory_success (__main__.TestPlay)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/sergei_rudenkov/PycharmProjects/hello_world/tic-tac-toe/tictactoe_test.py", line 23, in test_satisfactory_success
    self.assertEqual(play.check_satisfaction(1, 1), "Ok")
AssertionError: 'Field has been already occupied, try again' != 'Ok'

播放类为：

class Play(object):
    game = [['-', '-', '-'],
            ['-', '-', '-'],
            ['-', '-', '-']]

    move_count = 1
    finished = False

    def __str__(self):
        return "\n".join(map(str, self.game))

    def check_finished(self):
        result = False
        for i in range(2):
            if self.game[i][0] == self.game[i][1] == self.game[i][2] != '-':
                result = self.game[i][0]
            elif self.game[0][i] == self.game[1][i] == self.game[2][i] != '-':
                result = self.game[i][0]
        if self.game[0][0] == self.game[1][1] == self.game[2][2] != '-':
            return self.game[0][0]
        elif self.game[0][2] == self.game[1][1] == self.game[2][0] != '-':
            return self.game[0][2]
        elif not any("-" in row for row in self.game):
            return "Draw"
        else:
            return result

    def make_move(self, sign, x, y):
        self.game[x][y] = sign
        self.move_count += 1
        self.finished = self.check_finished()
        print self

    def check_satisfaction(self, x, y):
        try:
            x, y = int(x), int(y)
        except ValueError:
            return "Please enter integers, try again"
        if not (0 <= x <= 2 and 0 <= y <= 2):
            return "Arguments greater then 2 or less then 0 are not allowed, try again"
        if self.game[x][y] != '-':
            return "Field has been already occupied, try again"
        return "Ok"

    def winner(self):
        if self.finished == '+':
            return "First player (+) has won!"
        elif self.finished == '0':
            return "Second player (0) has won!"
        elif self.finished == 'Draw':
            return "The result is draw!"

请正确理解我：我来自Java，被认为每个方法都有自己的堆栈，但是我所看到的使我感到非常惊奇。有人可以帮我了解发生了什么吗？

用户名

class Play(object):
    def __init__(self):
        self.game = [['-', '-', '-'],
                    ['-', '-', '-'],
                    ['-', '-', '-']]

        self.move_count = 1
        self.finished = False

确保在类的所有其他方法中始终使用self.前缀访问这些成员变量：