Python NameError:未定义全局名称"assertEqual"

Question

我正在努力学习Python,我正在练习47 - 自动化测试(http://learnpythonthehardway.org/book/ex47.html)

我正在使用Python3(相对于本书使用Python 2.x),我意识到assert_equals(在本书中使用)已被弃用.我正在使用assertEqual.

我正在尝试构建一个测试用例但由于某种原因,当在cmd中使用nosetests时,我收到错误: NameError: global name 'assertEqual' is not defined

这是代码:

from nose.tools import *
from ex47.game import Room



def test_room():
    gold = Room("GoldRoom",
        """ This room has gold in it you can grab. There's a
            door to the north. """)
    assertEqual(gold.name, "GoldRoom")
    assertEqual(gold.paths, {})

def test_room_paths():
    center = Room("Center", "Test room in the center.")
    north = Room("North", "Test room in the north.")
    south = Room("South", "Test room in the south.")

    center.add_paths({'north': north, 'south': south})
    assertEqual(center.go('north'), north)
    assertEqual(center.go('south'), south)

def test_map():
    start = Room("Start", "You can go west and down a hole")
    west = Room("Trees", "There are trees here. You can go east.")
    down = Room("Dungeon", "It's dark down here. You can go up.")

    start.add_paths({'west': west, 'down': down})
    west.add_paths({'east': start})
    down.add_paths({'up': start})

    assertEqual(start.go('west'), west)
    assertEqual(start.go('west').go('east'), start)
    assertEqual(start.go('down').go('up'), start)

我已经尝试过在GitHub上搜索任何解决方案了,我只是不确定它为什么会给我NameError以及如何修复它.

Answer 1

python selenium 测试脚本中的第二个模块有类似的问题。通过包含“自我”解决了这个问题。在'assertIn'之前。

前：

assertIn('images/checkbox-checked.png', ET)

后：

self.assertIn('images/checkbox-checked.png', webelement)

Answer 2

assertEqual 是unittest.TestCase类的方法，因此您只能在从该类继承的对象上使用它。检查单元测试文档。