笨办法47自动化测试

目录结构：

ex47/
    ex47/
       __init__.py
       game.py
    bin/
    docs/
    setup.py
    tests/
       ex47_tests.py
       __init__.py

game.py文件：

class Room(object):
    def __init__(self, name, description):
        self.name = name
        self.description = description
        self.paths = {}

    def go(self, direction):
        return self.paths.get(direction, None)

    def add_paths(self, paths):
        self.paths.update(paths)

ex47_tests.py

# coding:utf-8
from nose.tools import *
from ex47.game import Room


def test_room():
    gold = Room("GoldRoom",
                """This room has gold in it you can crab. 
                There's a door to the north.""")
    assert_equal(gold.name, "GoldRoom")
    assert_equal(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})
    assert_equal(center.go('north'), north)
    assert_equal(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})

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

运行结果：

(lpthw) C:Python37Scriptsprojectsex47>nosetests
...
----------------------------------------------------------------------
Ran 3 tests in 0.034s

OK

---

直接执行脚本ex47_tests.py时有如下报错：

(lpthw) C:Python37Scriptsprojectsex47	ests>python ex47_tests.py
Traceback (most recent call last):
  File "ex47_tests.py", line 3, in <module>
    from ex47.game import Room
ModuleNotFoundError: No module named 'ex47'

追踪原因就是 game.py路径未加到python搜索路径中

修改代码：

# coding:utf-8
from nose.tools import *

import nose
import sys
sys.path.append("../ex47")

from game import Room


def test_room():
    gold = Room("GoldRoom",
                """This room has gold in it you can crab. 
                There's a door to the north.""")
    assert_equal(gold.name, "GoldRoom")
    assert_equal(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})
    assert_equal(center.go('north'), north)
    assert_equal(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})

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


if __name__ == "__main__":
    nose.runmodule()

运行结果：（需更改路径运行）

(lpthw) C:Python37Scriptsprojectsex47	ests>nosetests
...
----------------------------------------------------------------------
Ran 3 tests in 0.001s

OK

(lpthw) C:Python37Scriptsprojectsex47	ests>python ex47_tests.py
...
----------------------------------------------------------------------
Ran 3 tests in 0.001s

OK