# coding:utf-8

from flask import Flask, request, jsonify

app = Flask(__name__)

@app.route("/login", methods=["POST"])

def login():

    """登录"""

    name = request.form.get("name")

    password = request.form.get("password")

    # ""  0  [] () {} None 在逻辑判断时都是假

    if not all([name, password]):

        # 表示name或password中有一个为空或者都为空

        return jsonify(code=1, message=u"参数不完整")

    if name == "admin" and password == "admin":

        return jsonify(code=0, message=u"OK")

    else:

        return jsonify(code=2, message=u"用户名或密码错误")

if __name__ == '__main__':

    app.run()

# 以login.py模块的进行单元测试

import unittest

import json

from login import app

class BookTest(unittest.TestCase):

    @classmethod

    def setUpClass(cls):

        """在第一次执行用例钱执行"""

        cls.app = app

        # 开启测试DEBUG模式，如果用例执行到哪行代码报错就会提示

        cls.app.testing = True

        # 使用程序实例对象创建客户端

        cls.client = cls.app.test_client()

        print("all_before")

    @classmethod

    def tearDownClass(cls):

        """在最后一个用例执行完后执行"""

        print("all_after")

    def setUp(self):

        """在每次执行用例前执行"""

        print("one_before")

    def tearDown(self):

        """在每次执行完用例后执行"""

        print("one_after")

    def test_login_empty_name_password(self):

        """测试用户名或密码不完整的返回"""

        # 用例1：测试用户名和密码均为空

        # 使用客户端向接口发送POST，data为发送的数据

        response = self.client.post("/login", data={})

        # response.data提取响应数据

        resp_json = response.data

        # 将json字符串解析为字典

        resp_dict = json.loads(resp_json)

        # 使用断言进行验证

        self.assertIn("code", resp_dict)

        code = resp_dict.get("code")

        self.assertEqual(code, 1)

        # 用例2：测试只传name

        response = self.client.post("/login", data={"name": "admin"})

        resp_json = response.data

        resp_dict = json.loads(resp_json)

        self.assertIn("code", resp_dict)

        code = resp_dict.get("code")

        self.assertEqual(code, 1)

        # 用例3：测试只传password

        response = self.client.post("/login", data={"password": "admin"})

        resp_json = response.data

        resp_dict = json.loads(resp_json)

        self.assertIn("code", resp_dict)

        code = resp_dict.get("code")

        self.assertEqual(code, 1)

    def test_wrong_name_password(self):

        """测试用户名或密码错误的返回"""

        # 用例4：测试用户名或密码错误

        response = self.client.post("/login", data={"name": "admin", "password": "123456"})

        resp_json = response.data

        resp_dict = json.loads(resp_json)

        self.assertIn("code", resp_dict)

        code = resp_dict.get("code")

        self.assertEqual(code, 2)

    def test_identical_name_password(self):

        """测试用户名和密码均正确的返回"""

        # 用例5：测试用户名和密码均正确

        response = self.client.post("/login", data={"name": "admin", "password": "admin"})

        resp_json = response.data

        resp_dict = json.loads(resp_json)

        self.assertIn("code", resp_dict)

        code = resp_dict.get("code")

        self.assertEqual(code, 0)