pytest

前言 　　最近在听极客时间的课程，里面的讲师极力推崇 pytest 框架，鄙视 unittest 框架，哈哈！然后查了些资料，发现了一条 python 鄙视链： pytest 鄙视 > unittest 鄙视 > robotframework 。 　　pytest 是 python 的第三方单元测试框架，比自带 unittest 更简洁和高效，支持315种以上的插件，同时兼容 unittest 框架。这就使得我们在 unittest 框架迁移到 pytest 框架的时候不需要重写代码。接下来我们在文中来对分析下 pytest 有哪些简洁、高效的用法。 一、安装 首先使用 pip 安装 pytest pip3 install pytest 查看 pytest 是否安装成功 pip3 show pytest 二、简单使用 1.创建 test_sample.py 文件，代码如下： #!/usr/bin/env python # coding=utf-8 import pytest def inc(x): return x + 1 def test_answer(): assert inc(3) == 5 if __name__ =="__main__": pytest.main() 执行结果： test_sample.py F [100%] =======================

I have two simple test setups and I'm trying to group them in one fixture and want the test function to pass in the 'params' to the fixture. Here's a contrived example, to explain my question. Say I have the following pytest fixture: @pytest.fixture(scope="module", params=['param1','param2']) def myFixture(request): if request.param == 'param1': p = 5 elif request.param == 'param2': p = 10 return p # would like to set request.param = ['param1'] for myFixture def test_madeup(myFixture): assert myFixture == 5 # would like to set request.param = ['param2'] for myFixture def test_madeup2(myFixture

I'm using flask to do register and login: from flask.ext.security.views import register, login class Register(Resource): def post(self): return register() class Login(Resource): def post(self): return login() api.add_resource(Login, '/login') api.add_resource(Register, '/register') then I use py.test to test the class: class TestAPI: def test_survey(self, app): client = app.test_client() data = {'email': 'test@test', 'password': 'password'} rv = client.post('/2014-10-17/register', data=json.dumps(data)) ... when I ran the test, the error occurred as follow: AssertionError: Popped wrong request

I need to be able to change the location of pytest's .cache directory to the env variable, WORKSPACE. Due to server permissions out of my control, I am running into this error because my user does not have permission to write in the directory where the tests are being run from: py.error.EACCES: [Permission denied]: open('/path/to/restricted/directory/tests/.cache/v/cache/lastfailed', 'w') Is there a way to set the path of the .cache directory to the environment variable WORKSPACE? You can prevent the creation of .cache/ by disabling the "cacheprovider" plugin: py.test -p no:cacheprovider ...

I am using skipIf() from unittest for skipping tests in certain conditions. @unittest.skipIf(condition), "this is why I skipped them!") How do I tell py.test to display skipping conditions? I know that for unittest I need to enable the verbose mode ( -v ) but the same parameter added to py.test increase the verbosity by still does not display the skip reasons. Todd Wilson When you run py.test, you can pass -rsx to report skipped tests. From py.test --help : -r chars show extra test summary info as specified by chars (f)ailed, (E)error, (s)skipped, (x)failed, (X)passed. Also see this part of

Let's assume we have smth like that : import py, pytest ERROR1 = ' --- Error : value < 5! ---' ERROR2 = ' --- Error : value > 10! ---' class MyError(Exception): def __init__(self, m): self.m = m def __str__(self): return self.m def foo(i): if i < 5: raise MyError(ERROR1) elif i > 10: raise MyError(ERROR2) return i # ---------------------- TESTS ------------------------- def test_foo1(): with pytest.raises(MyError) as e: foo(3) assert ERROR1 in str(e) def test_foo2(): with pytest.raises(MyError) as e: foo(11) assert ERROR2 in str(e) def test_foo3(): .... foo(7) .... Q: How can I make test_foo3(

Here is a simple test file: # test_single.py def test_addition(): "Two plus two is still four" assert 2 + 2 == 4 def test_addition2(): "One plus one is still two" assert 1 + 1 == 2 The default output in py.test is like $ py.test test_single.py -v [...] test_single.py::test_addition PASSED test_single.py::test_addition2 PASSED I would like to have Two plus two is still four PASSED One plus one is still two PASSED i.e. use the docstrings as descriptions for the tests. I tried to use a customization in a conftest.py file: import pytest @pytest.mark.tryfirst def pytest_runtest_makereport(item,

场景:测试用例1000条，一个用例执行1钟，一个测试人员执行需要1000分 钟。通常我们会用人力成本换取时间成本，加几个人一起执行，时间就会缩 短。如果10人一起执行只需要100分钟，这就是一种并行测试，分布式场景。 解决:pytest分布式执行插件:pytest-xdist，多个CPU或主机执行 前提:用例之间都是独立的，没有先后顺序，随机都能执行，可重复运行不 影响其他用例。 安装:Pip3 install pytest-xdist • 多个CPU并行执行用例，直接加-n 3是并行数量:pytest -n 3 • 在多个终端下一起执行 来源： https://www.cnblogs.com/QaStudy/p/11567166.html