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