Automated API Testing for WeChat Mini Programs Using Python, Requests, and Beautiful Report

In WeChat mini‑program development, automated testing is essential for ensuring quality, and Python is a popular language for implementing such tests. A clear and attractive test report benefits both testers and developers.

Prerequisite knowledge

Basic Python 3 programming

Fundamentals of the HTTP protocol

Understanding of WeChat mini‑program concepts and development workflow

Basic usage of the Beautiful Report library

1. Obtain access_token

Before testing the WeChat mini‑program API, an access_token must be retrieved. The following Python code demonstrates how to request the token using the requests library.

import requests
APPID = 'your appid'
APPSECRET = 'your appsecret'

def get_access_token():
    url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=' + APPID + '&secret=' + APPSECRET
    response = requests.get(url)
    response_json = response.json()
    return response_json['access_token']

2. Write test case

Using the retrieved token, a test case is written to call the user‑authorization API and verify the response. The assert statements check the HTTP status and required fields.

def test_get_user_info():
    access_token = get_access_token()
    url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' + APPID + '&secret=' + APPSECRET + '&js_code=' + js_code + '&grant_type=authorization_code'
    headers = {'Content-Type': 'application/json'}
    response = requests.get(url, headers=headers)
    assert response.status_code == 200
    response_json = response.json()
    assert 'openid' in response_json
    assert 'session_key' in response_json

3. Generate test report

The Beautiful Report library is used to create a detailed HTML report. The code below sets up a test suite, adds the test case, and saves the report to a timestamped file.

import os
import time
import requests
from beautiful_report import BeautifulReport

APPID = 'your appid'
APPSECRET = 'your appsecret'

# get_access_token and test_get_user_info definitions omitted for brevity

if __name__ == '__main__':
    js_code = 'your js code'
    suite = BeautifulReport(unittest.TestSuite())
    suite.addTest(test_get_user_info(js_code))
    now = time.strftime('%Y-%m-%d_%H-%M-%S')
    report_dir = './reports'
    if not os.path.exists(report_dir):
        os.mkdir(report_dir)
    report_filename = 'test_report_' + now + '.html'
    report_path = os.path.join(report_dir, report_filename)
    suite.report(filename=report_path, description='测试微信小程序接口')

The generated report lists each test case, shows the HTTP request and response details, and includes screenshots, helping developers quickly identify and fix issues while maintaining a history of test results.

Overall, this approach provides an automated, repeatable way to test WeChat mini‑program APIs and produce comprehensive, visually appealing reports.