brief introduction

brief introduction

For students who often use automated means to test , Whether using interface automation tools , Or a self-developed testing framework , A complete automation use case , The assertion part is definitely the top priority , Because the granularity of assertions can reflect the quality of use cases to a certain extent , It must be asserted that the finer the particle size , The more likely you are to find problems , For interface testing , Interface return result assertion is required , But that's not enough , It is more recommended that the database data and interface request Assert important fields in , And the essence of assertion is also the comparison between data , For example, equal 、 contain 、 Nonempty .

Introduced today Python library assertP It is such a convenient tool to test students' efficient assertions , Test students directly take the data extracted from the database as the actual results And Compare the expected results . It supports equality assertions 、 Contains assertions 、 Non empty assertion 、JSON Assertion , The specific usage is as follows .

pip install assertP

Copy

practice

1. Make assertions in combination with the database . First , Create a new test table al_pay, Make some data .

-- Create Table CREATE TABLE `al_pay` (  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,  `user_id` varchar(11) COLLATE utf8mb4_bin DEFAULT NULL,  `pay_status` varchar(11) COLLATE utf8mb4_bin DEFAULT NULL,  `pay_amount` int(11) DEFAULT NULL,  `pay_cur` varchar(11) COLLATE utf8mb4_bin DEFAULT NULL,  `order_id` varchar(30) COLLATE utf8mb4_bin NOT NULL DEFAULT '',  `ext` varchar(200) COLLATE utf8mb4_bin DEFAULT NULL,  PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;

Copy

Test code ：

import pymysqlfrom assertP import AssertPy_multi, AssertPy#  Connect to database ,  and mysql The format of the server is the same （ Can also be set to gbk, gb2312）conn = pymysql.connect(host="localhost", user="root", passwd="123456", db='article', charset='utf8',                       port=3306)cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)​#  perform sql sentence select_sql = "select order_id, user_id, pay_status, pay_amount from al_pay where order_id=%s;"cursor.execute(select_sql, ("2022010818343700000002",))​act = cursor.fetchall()[0]exp = {'order_id': '2022010818343700000001', 'user_id': '20210100002', 'pay_status': 'CLOSED'}#  Assertion AssertPy('al_pay', act, exp)conn.commit()cursor.close()conn.close()

Copy

1. Include relationship assertions

act = {'pay_amount': "2000", 'pay_cur': 'RMB',           'order_id': '2022010818343700000001', 'ext': '{"user_name": "QA", "currency": "RMB"}'}exp = {'pay_amount': "CONTAINS_CHECK:2000", 'pay_cur': 'RMB',           'order_id': '2022010818343700000001', 'ext': '{"user_name": "QA", "currency": "RMB"}'}AssertPy(tName, act, exp)

Copy

Copy

1. JSON Assertion

act = {'ext': '{"user_name": "QA", "currency": "RMB"}'}exp = {'ext': 'JSON:{"user_name": "QA", "currency": "USD"}'}AssertPy(tName, act, exp)

Copy

1. Multiple data assertions

     tName = "TestTable"        act = [{'order_id': '2022010818343700000003', 'user_id': '20210100002', 'pay_status': 'PAYING'},               {'order_id': '2022010818343700000003', 'user_id': '20210100001', 'pay_status': 'SUCCESS'}]        exp = [{'order_id': '2022010818343700000003', 'user_id': '20210100002', 'pay_status': 'PAYING'},               {'order_id': '2022010818343700000003', 'user_id': '20210100001', 'pay_status': 'SUCCESS'}]        AssertPy_multi(tName, act, exp)

Copy

More assertion types , Extension ...

attach

assertP：https://pypi.org/project/assertP/

Selquel pro：www.sequelpro.com/

Python texttable：https://pypi.org/project/texttable/

PyMySQL：https://pypi.org/project/PyMySQL/

logging：https://docs.python.org/3/library/logging.html