Add unit tests

.coveragerc

@@ -0,0 +1,14 @@
+# .coveragerc to control coverage.py
+
+[report]
+# Regexes for lines to exclude from consideration
+exclude_lines =
+    # Have to re-enable the standard pragma:
+    pragma: no cover
+
+    # Don't complain if non-runnable code isn't run:
+    if 0:
+    if __name__ == .__main__.:
+    # Don't complain about debug code
+    if Image.DEBUG:
+    if DEBUG:

.gitignore

@@ -4,3 +4,5 @@
 MANIFEST
 build
 dist
+.coverage
+htmlcov/

.travis.yml

@@ -0,0 +1,36 @@
+language: python
+
+python:
+ - pypy
+ - pypy3
+ - 2.6
+ - 2.7
+ - 3.2
+ - 3.3
+ - 3.4
+ - 3.5
+
+sudo: false
+
+install:
+ - pip install coverage
+ - if [ "$TRAVIS_PYTHON_VERSION" == "2.6" ]; then pip install unittest2; fi
+ # Coverage 4.0 doesn't support Python 3.2
+ - if [ "$TRAVIS_PYTHON_VERSION" == "3.2" ]; then travis_retry pip install coverage==3.7.1; fi
+ - if [ "$TRAVIS_PYTHON_VERSION" != "3.2" ]; then travis_retry pip install coverage; fi
+
+script:
+ - coverage run --source=see ./test_see.py -v
+
+after_success:
+ - pip install coveralls
+ - coveralls
+
+after_script:
+ - coverage report
+ - pip install pep8 pyflakes
+ - pyflakes *.py | tee >(wc -l)
+ - pep8 --statistics --count *.py
+
+matrix:
+  fast_finish: true

test_see.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+# encoding: utf-8
+"""
+Unit tests for see.py
+"""
+from __future__ import print_function, unicode_literals
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
+
+import see
+
+
+class TestSee(unittest.TestCase):
+
+    def test_line_width(self):
+        # Arrange
+        default_width = 1
+        max_width = 1
+
+        # Act
+        width = see.line_width(default_width, max_width)
+
+        # Assert
+        self.assertIsInstance(width, int)
+        self.assertEqual(width, 1)
+
+    def test_regex_filter(self):
+        # Arrange
+        names = ["george", "helen"]
+        pat = "or*"
+
+        # Act
+        out = see.regex_filter(names, pat)
+
+        # Assert
+        self.assertIsInstance(out, tuple)
+        self.assertEqual(out, ("george",))
+
+    def test_fn_filter(self):
+        # Arrange
+        names = ["george", "helen"]
+        pat = "*or*"
+
+        # Act
+        out = see.fn_filter(names, pat)
+
+        # Assert
+        self.assertIsInstance(out, tuple)
+        self.assertEqual(out, ("george",))
+
+    def test_see_with_no_args(self):
+        # Act
+        out = see.see()
+
+        # Assert
+        self.assertIsInstance(out, see._SeeOutput)
+
+
+if __name__ == '__main__':
+    unittest.main()
+
+# End of file