Introduction to the Python Unit Test framework unittest testing process

Test steps

1. Import the UnitTest module

Import UnitTest

2. Write the test class inheritance unittest. TestCase

Class Tester (UnitTest. TestCase)

3. Methods for writing tests must begin with test

def test_add (self)

def test_sub (self)

4. Test The function points using the method provided by the TestCase class

a  is   b a  in   b TD style= "PADDING:2PX 5px; border-width:1px 1px 1px 0px; Border-style:solid; Border-color:rgb (221,221,221); Background-color:rgb (238,238,255) "> TD style= "PADDING:2PX 5px; border-width:1px 1px 1px 0px; Border-style:solid; Border-color:rgb (221,221,221); Background-color:rgb (238,238,255) ">

method	checks that	new in
assertequal (A,  b)	a  ==   b	 
assertnotequal (A,  b)	a  !=   b	 
asserttrue (x)	bool (x)  is  < Span class= "Pre" >true	&NBSP;
assertfalse (x)	bool (x)  is  < Span class= "Pre" >false	&NBSP;
assertis (A,  b)	2.7
assertisnot (A,  b)	a  is   not  b	2.7
assertisnone (x)	x  is   none	2.7
assertisnotnone (x)	x  is   not  none	2.7
assertin (A,  b)	2.7
assertnotin (A,  b)	a  not   in  b	2.7
assertisinstance (A,  b)	isinstance (A,  b)	2.7
assertnotisinstance (A,  b)	not  isinstance (A,  b)	2.7

5. Call the Unittest.main () method to run all methods that begin with test

if __name__ = = ' __main__ ':
Unittest.main ()

Examples are as follows

The class being tested

#!/usr/bin/python#coding=utf-8class computer (object): @staticmethoddef Add (A, B): return a + B; @staticmethoddef Sub (A, b ): Return a-b;<strong></strong>

Test class

#!/usr/bin/python#coding=utf-8import unittestfrom testee Import computerclass Tester (unittest. TestCase):d EF test_add (self): Self.assertequal (Computer.add (2, 3), 5, "Test add Function") def-test_sub (self): Self.assertequal (Computer.sub (5, 1), 4, "Test sub function") if __name__ = = ' __main__ ': Unittest.main ()

? Run Result:

----------------------------------------------------------------------

Ran 2 Tests in 0.000s

Ok

Introduction to the Python Unit Test framework unittest testing process