def setUp(self):
self.normalizer = StringNormalizer()
class StringNormalizerTest(unittest.TestCase):
def setUp(self):
self.normalizer = StringNormalizer()
def test_empty(self):
"""
Tests cases that should return empty string.
"""
self.assertEqual(self.normalizer.normalize(""), "")
self.assertEqual(self.normalizer.normalize("foo/bar/../.."), "")
self.assertEqual(self.normalizer.normalize("foo/../bar/.."), "")
self.assertEqual(self.normalizer.normalize("foo/bar/../baz/../.."), "")
self.assertEqual(self.normalizer.normalize("."), "")
def test_invalid(self):
"""
Tests cases that should return null.
"""
self.assertEqual(self.normalizer.normalize(".."), None)
self.assertEqual(self.normalizer.normalize("../bar"), None)
self.assertEqual(self.normalizer.normalize("foo/bar/../../.."), None)
self.assertEqual(self.normalizer.normalize("./.."), None)
def test_normal(self):
"""
Tests normal use cases.
"""
self.assertEqual(self.normalizer.normalize("foo/bar"), "foo/bar")
self.assertEqual(self.normalizer.normalize("foo/bar/.."), "foo")
self.assertEqual(self.normalizer.normalize("foo/bar/../baz"), "foo/baz")
self.assertEqual(self.normalizer.normalize("././foo/bar/.."), "foo")
def test_strange(self):
"""
Tests strange cases that have been defined in the specs.
"""
self.assertEqual(self.normalizer.normalize("foo//bar"), "foo//bar")
self.assertEqual(self.normalizer.normalize("////"), "////")
self.assertEqual(self.normalizer.normalize("////../.."), "//")