Python Unit Test Automation

Listing 3-17.  test_module11.py
import unittest
class TestClass12(unittest.TestCase):
        def test_case01(self):
                """This is a test method..."""
                print(self.id())
                self.fail()
The output of Listing 
3-16
 is as follows:
test_case01 (test_module11.TestClass12)
This is a test method... ... 
test_module11.TestClass12.test_case01
FAIL
======================================================================
FAIL: test_case01 (test_module11.TestClass12)
This is a test method...
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/pi/book/code/chapter03/test/test_module11.py", line 9, in 
test_case01
    self.fail()
AssertionError: None
----------------------------------------------------------------------
Ran 1 test in 0.004s
FAILED (failures=1)
Skipping tests
unittest provides a mechanism for skipping tests, conditionally or unconditionally. 
It uses the following decorators for implementing the skipping mechanism:
•  unittest.skip(reason): Unconditionally skips the decorated 
test. reason should describe why the test is being skipped.
•  unittest.skipIf(condition, reason): Skips the decorated test 
if condition is true.

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Chapter 3 
■
 Unittest
58
•  unittest.skipUnless(condition, reason): Skips the decorated 
test unless condition is true.
•  unittest.expectedFailure(): Marks the test as an expected 
failure. If the test fails when it runs, the test is not counted as a 
failure.
The code in Listing 
3-18
 demonstrates how to skip tests conditionally and 
unconditionally.