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# -*- coding: utf-8 -*-
"""
Unit tests for the pattern score.
Author: Gertjan van den Burg
"""
import unittest
from clevercsv import detect_pattern
from clevercsv.dialect import SimpleDialect
class PatternTestCase(unittest.TestCase):
"""
Abstraction tests
"""
def test_abstraction_1(self):
out = detect_pattern.make_abstraction(
"A,B,C", SimpleDialect(delimiter=",", quotechar="", escapechar="")
)
exp = "CDCDC"
self.assertEqual(exp, out)
def test_abstraction_2(self):
out = detect_pattern.make_abstraction(
"A,\rA,A,A\r",
SimpleDialect(delimiter=",", quotechar="", escapechar=""),
)
exp = "CDCRCDCDC"
self.assertEqual(exp, out)
def test_abstraction_3(self):
out = detect_pattern.make_abstraction(
"a,a,\n,a,a\ra,a,a\r\n",
SimpleDialect(delimiter=",", quotechar="", escapechar=""),
)
exp = "CDCDCRCDCDCRCDCDC"
self.assertEqual(exp, out)
def test_abstraction_4(self):
out = detect_pattern.make_abstraction(
'a,"bc""d""e""f""a",\r\n',
SimpleDialect(delimiter=",", quotechar='"', escapechar=""),
)
exp = "CDCDC"
self.assertEqual(exp, out)
def test_abstraction_5(self):
out = detect_pattern.make_abstraction(
'a,"bc""d"",|"f|""',
SimpleDialect(delimiter=",", quotechar='"', escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_6(self):
out = detect_pattern.make_abstraction(
",,,", SimpleDialect(delimiter=",", quotechar="", escapechar="")
)
exp = "CDCDCDC"
self.assertEqual(exp, out)
def test_abstraction_7(self):
out = detect_pattern.make_abstraction(
',"",,', SimpleDialect(delimiter=",", quotechar='"', escapechar="")
)
exp = "CDCDCDC"
self.assertEqual(exp, out)
def test_abstraction_8(self):
out = detect_pattern.make_abstraction(
',"",,\r\n',
SimpleDialect(delimiter=",", quotechar='"', escapechar=""),
)
exp = "CDCDCDC"
self.assertEqual(exp, out)
"""
Escape char tests
"""
def test_abstraction_9(self):
out = detect_pattern.make_abstraction(
"A,B|,C",
SimpleDialect(delimiter=",", quotechar="", escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_10(self):
out = detect_pattern.make_abstraction(
'A,"B,C|"D"',
SimpleDialect(delimiter=",", quotechar='"', escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_11(self):
out = detect_pattern.make_abstraction(
"a,|b,c",
SimpleDialect(delimiter=",", quotechar="", escapechar="|"),
)
exp = "CDCDC"
self.assertEqual(exp, out)
def test_abstraction_12(self):
out = detect_pattern.make_abstraction(
"a,b|,c",
SimpleDialect(delimiter=",", quotechar="", escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_13(self):
out = detect_pattern.make_abstraction(
'a,"b,c|""',
SimpleDialect(delimiter=",", quotechar='"', escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_14(self):
out = detect_pattern.make_abstraction(
"a,b||c",
SimpleDialect(delimiter=",", quotechar="", escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_15(self):
out = detect_pattern.make_abstraction(
'a,"b|"c||d|"e"',
SimpleDialect(delimiter=",", quotechar='"', escapechar="|"),
)
exp = "CDC"
self.assertEqual(exp, out)
def test_abstraction_16(self):
out = detect_pattern.make_abstraction(
'a,"b|"c||d","e"',
SimpleDialect(delimiter=",", quotechar='"', escapechar="|"),
)
exp = "CDCDC"
self.assertEqual(exp, out)
"""
Fill empties
"""
def test_fill_empties_1(self):
out = detect_pattern.fill_empties("DDD")
exp = "CDCDCDC"
self.assertEqual(exp, out)
"""
Pattern Score tests
"""
def test_pattern_score_1(self):
# theta_1 from paper
data = (
"7,5; Mon, Jan 12;6,40\n100; Fri, Mar 21;8,23\n8,2; Thu, Sep 17;"
'2,71\n538,0;;7,26\n"NA"; Wed, Oct 4;6,93'
)
d = SimpleDialect(delimiter=",", quotechar="", escapechar="")
out = detect_pattern.pattern_score(data, d)
exp = 7 / 4
self.assertAlmostEqual(exp, out)
def test_pattern_score_2(self):
# theta_2 from paper
data = (
"7,5; Mon, Jan 12;6,40\n100; Fri, Mar 21;8,23\n8,2; Thu, Sep 17;"
'2,71\n538,0;;7,26\n"NA"; Wed, Oct 4;6,93'
)
d = SimpleDialect(delimiter=";", quotechar="", escapechar="")
out = detect_pattern.pattern_score(data, d)
exp = 10 / 3
self.assertAlmostEqual(exp, out)
def test_pattern_score_3(self):
# theta_3 from paper
data = (
"7,5; Mon, Jan 12;6,40\n100; Fri, Mar 21;8,23\n8,2; Thu, Sep 17;"
'2,71\n538,0;;7,26\n"NA"; Wed, Oct 4;6,93'
)
d = SimpleDialect(delimiter=";", quotechar='"', escapechar="")
out = detect_pattern.pattern_score(data, d)
exp = 10 / 3
self.assertAlmostEqual(exp, out)
if __name__ == "__main__":
unittest.main()
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