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import unittest
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):
self.qg1_tok = QgramTokenizer(qval=1, padding=False)
self.qg2_tok = QgramTokenizer(padding=False)
self.qg2_tok_return_set = QgramTokenizer(padding=False,return_set=True)
self.qg3_tok = QgramTokenizer(qval=3, padding=False)
self.qg1_tok_wipad = QgramTokenizer(qval=1)
self.qg2_tok_wipad = QgramTokenizer()
self.qg2_tok_wipad_return_set = QgramTokenizer(return_set=True)
self.qg3_tok_wipad = QgramTokenizer(qval=3)
self.qg3_tok_wipad_diffpad = QgramTokenizer(qval=3,prefix_pad='^',
suffix_pad='!')
def test_qgrams_valid(self):
self.assertEqual(self.qg2_tok.tokenize(''), [])
self.assertEqual(self.qg2_tok.tokenize('a'), [])
self.assertEqual(self.qg2_tok.tokenize('aa'), ['aa'])
self.assertEqual(self.qg2_tok.tokenize('database'),
['da', 'at', 'ta', 'ab', 'ba', 'as', 'se'])
self.assertEqual(self.qg2_tok.tokenize('aabaabcdba'),
['aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba'])
self.assertEqual(self.qg2_tok_return_set.tokenize('aabaabcdba'),
['aa', 'ab', 'ba', 'bc', 'cd', 'db'])
self.assertEqual(self.qg1_tok.tokenize('d'), ['d'])
self.assertEqual(self.qg3_tok.tokenize('database'),
['dat', 'ata', 'tab', 'aba', 'bas', 'ase'])
self.assertEqual(self.qg2_tok_wipad.tokenize(''), ['#$'])
self.assertEqual(self.qg2_tok_wipad.tokenize('a'), ['#a', 'a$'])
self.assertEqual(self.qg2_tok_wipad.tokenize('aa'), ['#a', 'aa', 'a$'])
self.assertEqual(self.qg2_tok_wipad.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
self.assertEqual(self.qg2_tok_wipad.tokenize('aabaabcdba'),
['#a', 'aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba', 'a$'])
self.assertEqual(self.qg2_tok_wipad_return_set.tokenize('aabaabcdba'),
['#a', 'aa', 'ab', 'ba', 'bc', 'cd', 'db', 'a$'])
self.assertEqual(self.qg1_tok_wipad.tokenize('d'), ['d'])
self.assertEqual(self.qg3_tok_wipad.tokenize('database'),
['##d', '#da', 'dat', 'ata', 'tab', 'aba', 'bas', 'ase', 'se$', 'e$$'])
self.assertEqual(self.qg3_tok_wipad_diffpad.tokenize('database'),
['^^d', '^da', 'dat', 'ata', 'tab', 'aba', 'bas',
'ase', 'se!', 'e!!'])
def test_get_return_set(self):
self.assertEqual(self.qg2_tok.get_return_set(), False)
self.assertEqual(self.qg2_tok_return_set.get_return_set(), True)
self.assertEqual(self.qg2_tok_wipad.get_return_set(), False)
self.assertEqual(self.qg2_tok_wipad_return_set.get_return_set(), True)
def test_get_qval(self):
self.assertEqual(self.qg2_tok.get_qval(), 2)
self.assertEqual(self.qg3_tok.get_qval(), 3)
self.assertEqual(self.qg2_tok_wipad.get_qval(), 2)
self.assertEqual(self.qg3_tok_wipad.get_qval(), 3)
def test_set_return_set(self):
tok = QgramTokenizer(padding=False)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('aabaabcdba'),
['aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(tok.tokenize('aabaabcdba'),
['aa', 'ab', 'ba', 'bc', 'cd', 'db'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('aabaabcdba'),
['aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba'])
tok = QgramTokenizer()
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('aabaabcdba'),
['#a', 'aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba', 'a$'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(tok.tokenize('aabaabcdba'),
['#a', 'aa', 'ab', 'ba', 'bc', 'cd', 'db', 'a$'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('aabaabcdba'),
['#a', 'aa', 'ab', 'ba', 'aa', 'ab', 'bc', 'cd', 'db', 'ba', 'a$'])
def test_set_qval(self):
tok = QgramTokenizer(padding=False)
self.assertEqual(tok.get_qval(), 2)
self.assertEqual(tok.tokenize('database'),
['da', 'at', 'ta', 'ab', 'ba', 'as', 'se'])
self.assertEqual(tok.set_qval(3), True)
self.assertEqual(tok.get_qval(), 3)
self.assertEqual(tok.tokenize('database'),
['dat', 'ata', 'tab', 'aba', 'bas', 'ase'])
tok = QgramTokenizer()
self.assertEqual(tok.get_qval(), 2)
self.assertEqual(tok.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
self.assertEqual(tok.set_qval(3), True)
self.assertEqual(tok.get_qval(), 3)
self.assertEqual(tok.tokenize('database'),
['##d', '#da', 'dat', 'ata', 'tab', 'aba', 'bas', 'ase', 'se$', 'e$$'])
def test_set_padding(self):
tok = QgramTokenizer()
self.assertEqual(tok.get_padding(), True)
self.assertEqual(tok.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
tok.set_padding(False)
self.assertEqual(tok.get_padding(), False)
self.assertEqual(tok.tokenize('database'),
['da', 'at', 'ta', 'ab', 'ba', 'as', 'se'])
def test_set_prefix_pad(self):
tok = QgramTokenizer()
self.assertEqual(tok.get_prefix_pad(), '#')
self.assertEqual(tok.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
tok.set_prefix_pad('^')
self.assertEqual(tok.get_prefix_pad(), '^')
self.assertEqual(tok.tokenize('database'),
['^d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
def test_set_suffix_pad(self):
tok = QgramTokenizer()
self.assertEqual(tok.get_suffix_pad(), '$')
self.assertEqual(tok.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e$'])
tok.set_suffix_pad('!')
self.assertEqual(tok.get_suffix_pad(), '!')
self.assertEqual(tok.tokenize('database'),
['#d', 'da', 'at', 'ta', 'ab', 'ba', 'as', 'se', 'e!'])
@raises(TypeError)
def test_qgrams_none(self):
self.qg2_tok.tokenize(None)
@raises(AssertionError)
def test_qgrams_invalid1(self):
invalid_qg_tok = QgramTokenizer(0)
@raises(TypeError)
def test_qgrams_invalid2(self):
self.qg2_tok.tokenize(99)
@raises(AssertionError)
def test_set_qval_invalid(self):
qg_tok = QgramTokenizer()
qg_tok.set_qval(0)
@raises(AssertionError)
def test_padding_invalid(self):
_ = QgramTokenizer(padding=10)
@raises(AssertionError)
def test_set_padding_invalid(self):
qg = QgramTokenizer()
qg.set_padding(10)
@raises(AssertionError)
def test_prefixpad_invalid1(self):
_ = QgramTokenizer(prefix_pad=10)
@raises(AssertionError)
def test_prefixpad_invalid2(self):
_ = QgramTokenizer(prefix_pad="###")
@raises(AssertionError)
def test_set_prefix_pad_invalid1(self):
qg = QgramTokenizer()
qg.set_prefix_pad(10)
@raises(AssertionError)
def test_set_prefix_pad_invalid2(self):
qg = QgramTokenizer()
qg.set_prefix_pad('###')
@raises(AssertionError)
def test_suffixpad_invalid1(self):
_ = QgramTokenizer(suffix_pad=10)
@raises(AssertionError)
def test_suffixpad_invalid2(self):
_ = QgramTokenizer(suffix_pad="###")
@raises(AssertionError)
def test_set_suffix_pad_invalid1(self):
qg = QgramTokenizer()
qg.set_suffix_pad(10)
@raises(AssertionError)
def test_set_suffix_pad_invalid2(self):
qg = QgramTokenizer()
qg.set_suffix_pad('###')
class DelimiterTokenizerTestCases(unittest.TestCase):
def setUp(self):
self.delim_tok1 = DelimiterTokenizer()
self.delim_tok2 = DelimiterTokenizer(set([',']))
self.delim_tok3 = DelimiterTokenizer(set(['*', '.']))
self.delim_tok4 = DelimiterTokenizer(set(['..', 'ab']))
self.delim_tok4_list = DelimiterTokenizer(['..', 'ab', '..'])
self.delim_tok4_return_set = DelimiterTokenizer(set(['..', 'ab']),
return_set=True)
def test_delimiter_valid(self):
self.assertEqual(self.delim_tok1.tokenize('data science'),
['data', 'science'])
self.assertEqual(self.delim_tok2.tokenize('data,science'),
['data', 'science'])
self.assertEqual(self.delim_tok2.tokenize('data science'),
['data science'])
self.assertEqual(self.delim_tok3.tokenize('ab cd*ef.*bb. gg.'),
['ab cd', 'ef', 'bb', ' gg'])
self.assertEqual(
self.delim_tok4.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', ' cd', 'ef', 'gh'])
self.assertEqual(
self.delim_tok4_list.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', ' cd', 'ef', 'gh'])
self.assertEqual(
self.delim_tok4_return_set.tokenize(
'ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', 'gh'])
def test_get_return_set(self):
self.assertEqual(self.delim_tok4.get_return_set(), False)
self.assertEqual(self.delim_tok4_return_set.get_return_set(), True)
def test_get_delim_set(self):
self.assertSetEqual(self.delim_tok1.get_delim_set(), {' '})
self.assertSetEqual(self.delim_tok3.get_delim_set(), {'*', '.'})
self.assertSetEqual(self.delim_tok4_list.get_delim_set(), {'..', 'ab'})
def test_set_return_set(self):
tok = DelimiterTokenizer(set(['..', 'ab']))
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(
tok.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', ' cd', 'ef', 'gh'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(
tok.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', 'gh'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(
tok.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', ' cd', 'ef', 'gh'])
def test_set_delim_set(self):
tok = DelimiterTokenizer(['*', '.'])
self.assertSetEqual(tok.get_delim_set(), {'*', '.'})
self.assertEqual(tok.tokenize('ab cd*ef.*bb. gg.'),
['ab cd', 'ef', 'bb', ' gg'])
self.assertEqual(tok.set_delim_set({'..', 'ab'}), True)
self.assertSetEqual(tok.get_delim_set(), {'..', 'ab'})
self.assertEqual(
tok.tokenize('ab cd..efabbb....ggab cd..efabgh'),
[' cd', 'ef', 'bb', 'gg', ' cd', 'ef', 'gh'])
@raises(TypeError)
def test_delimiter_invalid1(self):
invalid_delim_tok = DelimiterTokenizer(set([',', 10]))
@raises(TypeError)
def test_delimiter_invalid2(self):
self.delim_tok1.tokenize(None)
@raises(TypeError)
def test_delimiter_invalid3(self):
self.delim_tok1.tokenize(99)
class WhitespaceTokenizerTestCases(unittest.TestCase):
def setUp(self):
self.ws_tok = WhitespaceTokenizer()
self.ws_tok_return_set = WhitespaceTokenizer(return_set=True)
def test_whitespace_tok_valid(self):
self.assertEqual(self.ws_tok.tokenize('data science'),
['data', 'science'])
self.assertEqual(self.ws_tok.tokenize('data science'),
['data', 'science'])
self.assertEqual(self.ws_tok.tokenize('data science'),
['data', 'science'])
self.assertEqual(self.ws_tok.tokenize('data\tscience'),
['data', 'science'])
self.assertEqual(self.ws_tok.tokenize('data\nscience'),
['data', 'science'])
self.assertEqual(self.ws_tok.tokenize('ab cd ab bb cd db'),
['ab', 'cd', 'ab', 'bb', 'cd', 'db'])
self.assertEqual(self.ws_tok_return_set.tokenize('ab cd ab bb cd db'),
['ab', 'cd', 'bb', 'db'])
def test_get_return_set(self):
self.assertEqual(self.ws_tok.get_return_set(), False)
self.assertEqual(self.ws_tok_return_set.get_return_set(), True)
def test_set_return_set(self):
tok = WhitespaceTokenizer()
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('ab cd ab bb cd db'),
['ab', 'cd', 'ab', 'bb', 'cd', 'db'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(tok.tokenize('ab cd ab bb cd db'),
['ab', 'cd', 'bb', 'db'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('ab cd ab bb cd db'),
['ab', 'cd', 'ab', 'bb', 'cd', 'db'])
def test_get_delim_set(self):
self.assertSetEqual(self.ws_tok.get_delim_set(), {' ', '\t', '\n'})
@raises(TypeError)
def test_whitespace_tok_invalid1(self):
self.ws_tok.tokenize(None)
@raises(TypeError)
def test_whitespace_tok_invalid2(self):
self.ws_tok.tokenize(99)
@raises(AttributeError)
def test_set_delim_set(self):
self.ws_tok.set_delim_set({'*', '.'})
class AlphabeticTokenizerTestCases(unittest.TestCase):
def setUp(self):
self.al_tok = AlphabeticTokenizer()
self.al_tok_return_set = AlphabeticTokenizer(return_set=True)
def test_alphabetic_tok_valid(self):
self.assertEqual(self.al_tok.tokenize(''), [])
self.assertEqual(self.al_tok.tokenize('99'), [])
self.assertEqual(self.al_tok.tokenize('hello'), ['hello'])
self.assertEqual(self.al_tok.tokenize('ab bc. cd##de ef09 bc fg ab.'),
['ab', 'bc', 'cd', 'de', 'ef', 'bc', 'fg', 'ab'])
self.assertEqual(
self.al_tok_return_set.tokenize('ab bc. cd##de ef09 bc fg ab.'),
['ab', 'bc', 'cd', 'de', 'ef', 'fg'])
def test_get_return_set(self):
self.assertEqual(self.al_tok.get_return_set(), False)
self.assertEqual(self.al_tok_return_set.get_return_set(), True)
def test_set_return_set(self):
tok = AlphabeticTokenizer()
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('ab bc. cd##de ef09 bc fg ab.'),
['ab', 'bc', 'cd', 'de', 'ef', 'bc', 'fg', 'ab'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(
tok.tokenize('ab bc. cd##de ef09 bc fg ab.'),
['ab', 'bc', 'cd', 'de', 'ef', 'fg'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(tok.tokenize('ab bc. cd##de ef09 bc fg ab.'),
['ab', 'bc', 'cd', 'de', 'ef', 'bc', 'fg', 'ab'])
@raises(TypeError)
def test_alphabetic_tok_invalid1(self):
self.al_tok.tokenize(None)
@raises(TypeError)
def test_alphabetic_tok_invalid2(self):
self.al_tok.tokenize(99)
class AlphanumericTokenizerTestCases(unittest.TestCase):
def setUp(self):
self.alnum_tok = AlphanumericTokenizer()
self.alnum_tok_return_set = AlphanumericTokenizer(return_set=True)
def test_alphanumeric_tok_valid(self):
self.assertEqual(self.alnum_tok.tokenize(''), [])
self.assertEqual(self.alnum_tok.tokenize('#$'), [])
self.assertEqual(self.alnum_tok.tokenize('hello99'), ['hello99'])
self.assertEqual(
self.alnum_tok.tokenize(',data9,(science), data9#.(integration).88!'),
['data9', 'science', 'data9', 'integration', '88'])
self.assertEqual(self.alnum_tok_return_set.tokenize(
',data9,(science), data9#.(integration).88!'),
['data9', 'science', 'integration', '88'])
def test_get_return_set(self):
self.assertEqual(self.alnum_tok.get_return_set(), False)
self.assertEqual(self.alnum_tok_return_set.get_return_set(), True)
def test_set_return_set(self):
tok = AlphanumericTokenizer()
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(
tok.tokenize(',data9,(science), data9#.(integration).88!'),
['data9', 'science', 'data9', 'integration', '88'])
self.assertEqual(tok.set_return_set(True), True)
self.assertEqual(tok.get_return_set(), True)
self.assertEqual(
tok.tokenize(',data9,(science), data9#.(integration).88!'),
['data9', 'science', 'integration', '88'])
self.assertEqual(tok.set_return_set(False), True)
self.assertEqual(tok.get_return_set(), False)
self.assertEqual(
tok.tokenize(',data9,(science), data9#.(integration).88!'),
['data9', 'science', 'data9', 'integration', '88'])
@raises(TypeError)
def test_alphanumeric_tok_invalid1(self):
self.alnum_tok.tokenize(None)
@raises(TypeError)
def test_alphanumeric_tok_invalid2(self):
self.alnum_tok.tokenize(99)
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