Implementation of automatic test of Python pytest interface

1, Preliminary preparations

1.apis.xlsx data table of tested interface

According to the interface document given by the development, we save the relevant data of the interface in APIs Xlsxl table, easy to read.

2.case01.xlsx test case

Write corresponding interface test cases case01 according to interface documents and requirements documents Xlsx, take a login interface as an example.

2, Code implementation

The code structure is as follows: reading excel table

Use xlrd module to read the contents of excel table, save the use case as a list and return.

# -*- coding: utf-8 -*-
import xlrd

class Excel(object):
    def __init__(self, file_name):
        # Read excel
        self.wb = xlrd.open_workbook(file_name) = self.wb.sheet_names()
        self.list_data = []

    def read(self):
        for sheet_name in
            sheet = self.wb.sheet_by_name(sheet_name)
            rosw = sheet.nrows
            for i in range(0, rosw):
                rowvalues = sheet.row_values(i)
        return self.list_data processing table data

The data read from excel is processed into dictionary format.

def data_to_dict(data):
    Change use case table data to dict format
    :param data:
    head = []
    list_dict_data = []
    for d in data[0]:
        d = case_header.get(d, d)
    for b in data[1:]:
        dict_data = {}
        for i in range(len(head)):
            if isinstance(b[i], str):
                dict_data[head[i]] = b[i].strip()
                dict_data[head[i]] = b[i]
    return list_dict_data

After processing, a use case is a separate dictionary, and all use cases are in a list. The processed data are as follows: generate test suite

Data_ to_ The data returned by dict is further processed and turned into the final test suite.

def suite_cases(data):
    dict The data processing of format is in the format of test suite
    :param data:
    api_file = file_path.parent / 'api/apis.xlsx'
    excel_apis = Excel(api_file)
    apis = api_to_json([1:])
    testsuite = []
    testcase = {}
    for d in data:
        # Format request data and assertion data
        for key in ('data', 'assert', 'headers'):
            if d[key].strip():
                _ = d[key].split(',')
                test_data = dict()
                for i in _:
                    i = i.split('=')
                    test_data[i[0]] = i[1]
                d[key] = test_data
        if d['module'].strip():
            if testcase:
                testcase = {}
            testcase['module'] = d['module']
            testcase['steps'] = []
        no = str(d['step']).strip()
        if no:
            step = {'no': str(int(d['step']))}
            for key in ('id', 'title', 'condition', 'api', 'headers', 'data', 'assert'):
                if key == 'api':
                    step[key] = {'type': apis[d.get(key, '')]['type'],
                                 'url': apis['baseurl']['url'] + apis[d.get(key, '')]['url']}
                    step[key] = d.get(key, '')
    if testcase:
    return testsuite

Merge APIs For the data in xlsx, the data returned after processing is a list. Each element in the list represents a test case. Each element is a dictionary, which contains all the information of the test case. The processed data are as follows: send request module

Execute the test cases in the test suite and return the response data.

# -*- coding: UTF-8 -*-
import pytest
import requests
import json

def post_request(request):
    data = request.param['data']
    header = request.param['headers']
    url = request.param['api']['url']
    no = request.param['no']
    response = requests.request('POST', url=url, headers=header, data=json.dumps(data))
    return response, no execute login test case

Extract and execute the test cases of the login module.

# -*- coding: UTF-8 -*-
import pathlib
import pytest
from import data_to_dict, suite_cases
from common.utlis import Excel

file_path = pathlib.Path(__file__).parent

excel_case = Excel(file_path / 'testcase/testcase.xlsx').read()
test_suit = suite_cases(data_to_dict(excel_case))
for _ in test_suit:
    if _['module'] == 'Sign in':
        test_data = _['steps']
test_data = test_suit[0]['steps']

class TestLogin(object):

    @pytest.mark.parametrize('post_request', test_data, indirect=True)
    def test_login(self, post_request):
        response = post_request[0].json()
        no = int(post_request[1])
        assert response['msg'] == test_data[no - 1]['assert']['msg']

5. Run test cases

Because in pytest INI file has been configured, so you can directly enter pytest on the command line to start executing the test case.
pytest.ini file configuration is as follows:

# print and generate a saved Report
addopts = -s --html=report/report.html
# Match execution file
python_files = test_*.py
# Match execution class
python_classes = Test*
# Matching execution method
python_functions = test_*

The results of the command line are as follows:

The test report is as follows:
The pytest HTML plug-in is used here, and allure also supports pytest. If you want a more beautiful test report interface, you can use the allure plug-in.

3, Summary

Automated tests run in this way are put on Jenkins for continuous integration. Using pytest xdist, you can also execute test cases in multiple processes, which makes the execution of tests more efficient and saves time and cost.

Tags: Python

Posted by peuge on Fri, 20 May 2022 23:01:51 +0300