Pytest series-01-installation and introduction

Installation and introduction

Python Supported version ：Python 2.7,3.3, 3.7

Support platform ：Unix/MacOS and Windows

install ：pip install pytest

Check if the installation is successful ：

pytest  --version

This is pytest version 3.7.0, imported from /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pytest.py

Create a simple test ：

def sum(a):

     return x+1

def test_answer():

    assert sum(4)==5

When executing the script ： You need to define the file name of the script as test_XXXX.py, And then the command line cd Go to the directory where the script is located , Direct execution ：pytest.

Execute multiple test scripts

The upper side is executing pytest when , In fact, it will execute all operations under the current directory and its subdirectories with test_XXX.py as well as XXX_test.py File format . He will look for relevant test Method to execute .