python - pytest 报告摘要显示错误信息

Question

我对 pytest Hook 和插件比较陌生，我不知道如何让我的 pytest 代码给我测试执行摘要和失败原因。

考虑代码:

class Foo:
    def __init__(self, val):
        self.val = val

    def test_compare12():
        f1 = Foo(1)
        f2 = Foo(2)
        assert f1 == f2, "F2 does not match F1"

    def test_compare34():
        f3 = Foo(3)
        f4 = Foo(4)
        assert f3 == f4, "F4 does not match F3"

当我使用 -v 选项运行 pytest 脚本时，它会在控制台上显示以下结果:

========================= test session starts=================================
platform darwin -- Python 2.7.5 -- py-1.4.26 -- pytest-2.7.0 --    /Users/nehau/src/QA/bin/python
rootdir: /Users/nehau/src/QA/test, inifile: 
plugins: capturelog
collected 2 items 

test_foocompare.py::test_compare12 FAILED
test_foocompare.py::test_compare34 FAILED

================================ FAILURES ===============================
_______________________________ test_compare12 _________________________

def test_compare12():
    f1 = Foo(1)
    f2 = Foo(2)
>       assert f1 == f2, "F2 does not match F1"
E       AssertionError: F2 does not match F1
E       assert <test.test_foocompare.Foo instance at 0x107640368> == <test.test_foocompare.Foo instance at 0x107640488>

test_foocompare.py:11: AssertionError
_____________________________ test_compare34______________________________

def test_compare34():
    f3 = Foo(3)
    f4 = Foo(4)
>       assert f3 == f4, "F4 does not match F3"
E       AssertionError: F4 does not match F3
E       assert <test.test_foocompare.Foo instance at 0x107640248> == <test.test_foocompare.Foo instance at 0x10761fe60>

test_foocompare.py:16: AssertionError

=============================== 2 failed in 0.01 seconds ==========================

我正在运行将近 2000 个测试用例，所以如果我能以以下格式让 pytest 显示输出，那将非常有帮助:

::
test_foocompare.py::test_compare12 FAILED AssertionError:F2 does not match F1
test_foocompare.py::test_compare34 FAILED AssertionError:F2 does not match F1
::

我看过 pytest_runtest_makereport 插件，但似乎无法正常工作。任何人有任何其他想法？

谢谢

Answer 1

试试 -tb 标志:

pytest --tb=line

这为每个测试提供一行输出。参见 the docs .