Pytest 文件执行

在本章中，我们将学习如何执行单个测试文件和多个测试文件。我们已经创建了一个测试文件 test_square.py 。创建一个新的测试文件 test_compare.py ，代码如下：

def test_greater():
   num = 100
   assert num > 100

def test_greater_equal():
   num = 100
   assert num >= 100

def test_less():
   num = 100
   assert num < 200

现在，为了运行所有文件（这里有2个文件）中的所有测试，我们需要运行以下命令

pytest -v

上述命令将运行test _square.py 和 test_compare.py 的测试。输出将被生成如下 –

test_compare.py::test_greater FAILED
test_compare.py::test_greater_equal PASSED
test_compare.py::test_less PASSED
test_square.py::test_sqrt PASSED
test_square.py::testsquare FAILED
================================================ FAILURES 
================================================
______________________________________________ test_greater 
______________________________________________
   def test_greater():
   num = 100
>  assert num > 100
E  assert 100 > 100

test_compare.py:3: AssertionError
_______________________________________________ testsquare 
_______________________________________________
   def testsquare():
   num = 7
>  assert 7*7 == 40
E  assert (7 * 7) == 40

test_square.py:9: AssertionError
=================================== 2 failed, 3 passed in 0.07 seconds 
===================================

To execute the tests from a specific file, use the following syntax −

pytest <filename> -v

现在，运行以下命令 –

pytest test_compare.py -v

上述命令将只执行文件 test_compare.py 中的测试。我们的结果将是 —

test_compare.py::test_greater FAILED
test_compare.py::test_greater_equal PASSED
test_compare.py::test_less PASSED
============================================== FAILURES 
==============================================
____________________________________________ test_greater 
____________________________________________
   def test_greater():
   num = 100
>  assert num > 100
E  assert 100 > 100
test_compare.py:3: AssertionError
================================= 1 failed, 2 passed in 0.04 seconds 
=================================