def test_error_should_be_25_over_2(self):
"""Tests that the mean squared error between (0, 0) and (3, 4) is
12.5."""
self.assertEqual(comparator.distance(self.two_zeros, self.three_four),
12.5)
self.assertEqual(comparator.distance(self.three_four, self.two_zeros),
12.5)
def test_error_should_be_one(self):
"""Tests that the mean squared error between (0, 0, 0, 0, 0)
and (1, 1, 1, 1, 1) is 1."""
self.assertEqual(comparator.distance(self.five_zeros, self.int_ones), 1)
self.assertEqual(comparator.distance(self.int_ones, self.five_zeros), 1)
self.assertEqual(comparator.distance(self.five_zeros, self.complex_ones),
1)
self.assertEqual(comparator.distance(self.complex_ones, self.five_zeros),
1)
def test_texts_are_begin_compared_correctly():
reference = "Lorem ipsum dolor"
good = [
reference,
reference.lower(),
"Larem ipsum dalor",
"Loremipsumdolor",
"lorem ipsum dolor",
]
bad = [
"lrem psum dolr", "ipsum lorem dolor", "dolor lorem ipsum",
"dolor sit amet"
]
assert is_acceptable(distance(good[0], reference))
assert is_acceptable(distance(good[1], reference))
assert is_acceptable(distance(good[2], reference))
assert is_acceptable(distance(good[3], reference))
assert is_acceptable(distance(good[4], reference))
assert is_acceptable(distance(bad[0], reference)) is False
assert is_acceptable(distance(bad[1], reference)) is False
assert is_acceptable(distance(bad[2], reference)) is False
assert is_acceptable(distance(bad[3], reference)) is False