Switch from nose to vanilla unittest (anhaidgroup#78)

.coveragerc

@@ -7,4 +7,3 @@ omit =
     */benchmarks/*
     *__init__*
     */python?.?/*
-    */site-packages/nose/*

.gitignore

@@ -42,7 +42,6 @@ htmlcov/
 .coverage
 .coverage.*
 .cache
-nosetests.xml
 coverage.xml
 *,cover
 

.travis.yml

@@ -40,11 +40,11 @@ install:
   - conda create --yes -n py_stringmatching_test_env python=$PYTHON_VERSION
   - source activate py_stringmatching_test_env
   - python --version
-  - pip install numpy six nose Cython>=0.29.23 coveralls
+  - pip install numpy six Cython>=0.29.23 coveralls
   - python setup.py build_ext --inplace
 
 script:
-  - coverage run -m nose
+  - coverage run -m unittest
   - uname -a
 
 after_success:

appveyor.yml

@@ -23,16 +23,16 @@ install:
   - python -m pip install --upgrade pip
 
   # Install the build and runtime dependencies of the project.
-  - pip install setuptools numpy six nose cython>=0.29.23 wheel
+  - pip install setuptools numpy six cython>=0.29.23 wheel
 
   # Build the project
   - python setup.py build_ext --inplace
 
 build: false
 
 test_script:
-  # Nosetests take care of unit tests
-  - nosetests
+  # unittest discovery finds the tests for us
+  - python -m unittest
 
 after_test:
   - ver

build_tools/requirements_dev.txt

@@ -1,4 +1,3 @@
 numpy>=1.7.0
 six
 Cython
-nose

docs/Contributing.rst

@@ -166,7 +166,7 @@ nor any existing python installation. It will install all of the basic dependenc
 *py_stringmatching*, as well as the development and testing tools. If you would like to install
 other dependencies, you can install them as follows::
 
-      conda install -n py_stringmatching_dev nose
+      conda install -n py_stringmatching_dev numpy
 
 .. To install *all* py_stringmatching dependencies you can do the following::
 
@@ -347,8 +347,8 @@ it is worth getting in the habit of writing tests ahead of time so this is never
 
 Unit testing
 ~~~~~~~~~~~~~
-Like many packages, *py_stringmatching* uses the `Nose testing system
-<http://nose.readthedocs.org/en/latest/index.html>`_.
+Like many packages, *py_stringmatching* uses the `standard ``unittest``
+testing library <https://docs.python.org/3/library/unittest.html>`_.
 
 All tests should go into the ``tests`` subdirectory of the specific package.
 This folder contains many current examples of tests, and we suggest looking to these for
@@ -357,7 +357,7 @@ inspiration.
 The tests can then be run directly inside your Git clone (without having to
 install *py_stringmatching*) by typing::
 
-    nosetests
+    python3 -m unittest
 
 
 Performance testing

py_stringmatching/tests/test_sim_Soundex.py

@@ -5,10 +5,11 @@
 import math
 import unittest
 
-from nose.tools import *
-
 from py_stringmatching.similarity_measure.soundex import Soundex
 
+from .utils import raises
+
+
 class SoundexTestCases(unittest.TestCase):
     def setUp(self):
         self.sdx = Soundex()
@@ -102,4 +103,4 @@ def test_invalid_input10_sim_score(self):
 
     @raises(TypeError)
     def test_invalid_input11_sim_score(self):
-        self.sdx.get_sim_score('abc', 123)
+        self.sdx.get_sim_score('abc', 123)

py_stringmatching/tests/test_simfunctions.py

@@ -6,10 +6,7 @@
 import math
 import unittest
 
-from nose.tools import *
-
-
-
+from .utils import raises
 
 # sequence based similarity measures
 from py_stringmatching.similarity_measure.affine import Affine

py_stringmatching/tests/test_tokenizers.py

@@ -1,14 +1,15 @@
 from __future__ import unicode_literals
 
 import unittest
-from nose.tools import *
 
 from py_stringmatching.tokenizer.alphabetic_tokenizer import AlphabeticTokenizer
 from py_stringmatching.tokenizer.alphanumeric_tokenizer import AlphanumericTokenizer
 from py_stringmatching.tokenizer.delimiter_tokenizer import DelimiterTokenizer
 from py_stringmatching.tokenizer.qgram_tokenizer import QgramTokenizer
 from py_stringmatching.tokenizer.whitespace_tokenizer import WhitespaceTokenizer
 
+from .utils import raises
+
 
 class QgramTokenizerTestCases(unittest.TestCase):
     def setUp(self):

py_stringmatching/tests/utils.py

@@ -0,0 +1,8 @@
+# Simplified knockoff of nose.tools.raises
+def raises(exc_type):
+    def deco(f):
+        def raises_wrapper(self):
+            with self.assertRaises(exc_type):
+                return f(self)
+        return raises_wrapper
+    return deco