["python","mysql","flask","werkzeug","flask-restful"]
RuntimeError: working outside of application context

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 I am importing app into test.py for unit testing. On calling 'before_request' function into test.py, it is throwing a RuntimeError: working outside of application context, the same is happening on calling 'input_info()'
Flask has an Application Context, and it seems like you'll need to do something like: def test_connection(self): with app.app_context(): #test code You can probably also shove the app.app_context() call into a test setup method as well.