{"id":208,"date":"2020-12-19T06:47:06","date_gmt":"2020-12-19T06:47:06","guid":{"rendered":"http:\/\/www.kowanas.com\/coding\/?p=208"},"modified":"2020-12-19T07:06:19","modified_gmt":"2020-12-19T07:06:19","slug":"unit-test","status":"publish","type":"post","link":"https:\/\/www.kowanas.com\/coding\/2020\/12\/19\/unit-test\/","title":{"rendered":"Start Python #2 Unit Test \uc0ac\uc6a9\ud558\uae30 ( feat. pytest )"},"content":{"rendered":"\n

\uc800\ub294 pytest \ub97c coding\uc911\uc5d0 Unit Test \ub97c \uc704\ud574\uc11c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc800\uc758 Python \ud658\uacbd\uc740 3.4\uc774\uc0c1\uc774\uba70 \uc800\ub294 \ud604\uc7ac 3.6.9\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. 3.4\uc774\ud558\uc5d0\uc11c\ub294 \uc5d0\ub7ec\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p><\/blockquote>\n\n\n\n

\ubc18\ub4dc\uc2dc pytest\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\ub294 \uac83\uc740 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2e4\ub978 unit test lib\ub4e4\uc774 \ub9ce\uc774 \uc788\uc2b5\ub2c8\ub2e4\ub9cc \uc800\ub294 pytest\ub97c \uc8fc\ub85c \uc0ac\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0 \uc55e\uc73c\ub85c pytest\ub97c \uc0ac\uc6a9\ud558\uba74\uc11c \ucf54\ub4dc \uc124\uba85\ud574\ub098\uac08 \uc608\uc815\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\uc624\ub298\uc758 \ud575\uc2ec\uc740 if __name__ == ‘__main__’: \ub300\uc2e0 pytest\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p><\/blockquote>\n\n\n\n

pytest \uc124\uce58<\/h2>\n\n\n\n

pip3 install pytest<\/strong><\/p>\n\n\n\n

pip install pytest<\/strong><\/p>\n\n\n\n

\ud658\uacbd\uc5d0 \ub9de\uac8c \uc0ac\uc6a9\ud558\uc2dc\uba74 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

test_ \ub610\ub294 _test \uadf8\ub9ac\uace0 \uc2e4\ud589<\/h2>\n\n\n\n

pytest\uc5d0 \uc758\ud574\uc11c \uc2e4\ud589\ub420 \ud30c\uc77c\uacfc \ud568\uc218\ub294 test_ \ub610\ub294 _test\ub97c \uc55e\uc774\ub098 \ub4a4\uc5d0 \ubd99\uc5ec\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\uadf8\ub798\uc11c test_\uac00 \ubd99\uc740 \ud30c\uc77c\uc758 \ud3f4\ub354\uc5d0\uc11c pytest \ub97c \uc2e4\ud589\ud558\uba74 pytest\ub294 test_\uac00 \ubd99\uc740 \ud30c\uc77c\uacfc \ud30c\uc77c\ub0b4\uc5d0 test_\uac00 \ubd99\uc740 \ud568\uc218\ub4e4\uc744 \uc2e4\ud589\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub2e4\uc74c\uc740 Chapter 1\uc5d0\uc11c \uc124\uba85\ud55c Thread Safe \uc2f1\uae00\ud1a4 \ud328\ud134 \ucf54\ub4dc<\/a>\ub97c pytest\ub85c \uc2e4\ud589\ud55c \uacb0\uacfc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

\"Unit<\/figure>\n\n\n\n

$ pytest \ub9cc \uc2e4\ud589\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

pytest code<\/h2>\n\n\n\n

Chapter 1\uc5d0\uc11c \uc124\uba85\ud55c Thread Safe \uc2f1\uae00\ud1a4 \ud328\ud134 \ucf54\ub4dc<\/a>\ub97c pytest\ub97c \uc774\uc6a9\ud558\uc5ec \uc218\uc815\ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

Singleton.py<\/strong><\/h4>\n\n\n\n

\uc774\uc804\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

from threading import Lock\n\nclass Singleton(type):\n    _instance = None\n    _lock = Lock()\n\n    def __call__(cls, *args, **kwargs):\n        with cls._lock:\n            if not cls._instance:\n                cls._instance = super().__call__(*args, **kwargs)\n        return cls._instance<\/code><\/pre>\n\n\n\n
SingletonClass.py<\/h4>\n\n\n\n
\ub2e4 \uac19\uc9c0\ub9cc if __name__ == ‘__main__’: \uc774 \uc5c6\uc5b4\uc84c\uc2b5\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n
\uc774 \ucf54\ub4dc\ub97c pytest code\ub85c \uc62e\uae30\ub294 \uac83\uc774 \ud575\uc2ec\uc785\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n
from Singleton import Singleton\n\nclass SingletonClass(metaclass=Singleton):\n    def __init__(self, name):\n        self.name = name\n\n    def __str__(self):\n        return self.name;    <\/code><\/pre>\n\n\n\n
tests\/test_SingletonClass.py<\/h4>\n\n\n\n
def run\uc740 test_\uac00 \uc5c6\uae30 \ub54c\ubb38\uc5d0 pytest\uc5d0 \uc758\ud574\uc11c \uc2e4\ud589\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n
test_Singleton\uc740 pytest\uc5d0 \uc758\ud574\uc11c \uc2e4\ud589\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n
import sys\nsys.path.append('..')\nfrom SingletonClass import SingletonClass\nfrom threading import Thread\n\ndef run(name, result):\n    singleton = SingletonClass(name)\n    result[0] = str(singleton)\n\ndef test_Singleton():\n    resultA = ['A']\n    resultB = ['B']\n    processa = Thread(target=run, args=('ACLASS', resultA))\n    processb = Thread(target=run, args=('BCLASS', resultB))\n    processa.start()\n    processb.start()\n    assert(resultA[0] == resultB[0])<\/code><\/pre>\n\n\n\n
\uc704 \ucf54\ub4dc\uc5d0\uc11c \ucd94\uac00 \uc124\uba85\uc774 \ud544\uc694\ud55c \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n