pytestPython 测试工具
pytest 是一个功能齐全的 Python 测试工具,可以帮助编写更好的程序,不仅可以编写小测试,还可以扩展到复杂的功能测试。
特性:
- 有关失败的断言语句的详细信息(无需记住 self.assert* names)
- 自动发现测试模块和功能
- 模块化式具,用于管理小型或参数化的长期测试资源
- 可以开箱即用运行单元测试、Nose 测试套件
- Python 3.5+ 与 PyPy3;
- 丰富的插件架构,拥有 850 多个外部插件和繁荣的社区
简单 demo:
# content of test_sample.py def inc(x): return x + 1 def test_answer(): assert inc(3) == 5
运行该测试:
$ pytest =========================== test session starts ============================ platform linux -- Python 3.x.y, pytest-5.x.y, py-1.x.y, pluggy-0.x.y cachedir: $PYTHON_PREFIX/.pytest_cache rootdir: $REGENDOC_TMPDIR collected 1 item test_sample.py F [100%] ================================= FAILURES ================================= _______________________________ test_answer ________________________________ def test_answer(): > assert inc(3) == 5 E assert 4 == 5 E + where 4 = inc(3) test_sample.py:6: AssertionError ========================= short test summary info ========================== FAILED test_sample.py::test_answer - assert 4 == 5 ============================ 1 failed in 0.12s =============================
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