app.py

from flask import Flask, render_template, request,jsonify,json,g
import mysql.connector

app = Flask(__name__)
**class TestMySQL():**
  @app.before_request
  def before_request():
    try:
       g.db = mysql.connector.connect(user='root', password='root', database='mysql')
    except mysql.connector.errors.Error as err:
      resp = jsonify({'status': 500, 'error': "Error:{}".format(err)})
      resp.status_code = 500
      return resp
@app.route('/')
def input_info(self):
    try:     
        cursor = g.db.cursor()
        cursor.execute ('CREATE TABLE IF NOT EXISTS testmysql (id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, name VARCHAR(40) NOT NULL, \
                 email VARCHAR(40) NOT NULL UNIQUE)')
        cursor.close()

test.py

from app import *
class Test(unittest.TestCase):         
 def test_connection1(self):  
   with patch('__main__.mysql.connector.connect') as  mock_mysql_connector_connect:
   object=TestMySQL()
   object.before_request()  """Runtime error on calling this"

我正在将 应用程序 导入到 test.py中 以进行单元测试。在将’ before_request
‘函数调用到test.py中时，它会抛出RuntimeError：在应用程序上下文之外工作同样会在调用’ input_info（） ‘时发生