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NumPy Beginner's Guide

You're reading from   NumPy Beginner's Guide An action packed guide using real world examples of the easy to use, high performance, free open source NumPy mathematical library.

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Product type Paperback
Published in Apr 2013
Publisher Packt
ISBN-13 9781782166085
Length 310 pages
Edition 2nd Edition
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Author (1):
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Ivan Idris Ivan Idris
Author Profile Icon Ivan Idris
Ivan Idris
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Table of Contents (19) Chapters Close

Numpy Beginner's Guide Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. NumPy Quick Start FREE CHAPTER 2. Beginning with NumPy Fundamentals 3. Get in Terms with Commonly Used Functions 4. Convenience Functions for Your Convenience 5. Working with Matrices and ufuncs 6. Move Further with NumPy Modules 7. Peeking into Special Routines 8. Assure Quality with Testing 9. Plotting with Matplotlib 10. When NumPy is Not Enough – SciPy and Beyond 11. Playing with Pygame Pop Quiz Answers Index

Time for action – decorating tests


We will apply the setastest decorator directly to test functions. Then we will apply the same decorator to a method to disable it. Also we will skip one of the tests and fail another. First we will install nose in case you don't have it yet.

  1. Install nose with setuptools

    easy_install nose

    Or pip:

    pip install nose
  2. We will apply one function as being a test and another as not being a test.

    @setastest(False)
    def test_false():
      pass
    
    @setastest(True)
    def test_true():
      pass
  3. We can skip tests with the skipif decorator. Let's use a condition that always leads to a test being skipped.

    @skipif(True)
    def test_skip():
      pass
  4. Add a test function that always passes. Then decorate it with the knownfailureif decorator so that the test always fails.

    @knownfailureif(True)
    def test_alwaysfail():
        pass
  5. We will define some test classes with methods that normally should be executed by nose.

    class TestClass():
      def test_true2(self):
        pass
    
    class TestClass2():
      def test_false2...
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