wordfreq/tests/test_queries.py

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2013-10-29 21:21:55 +00:00
from __future__ import unicode_literals
from nose.tools import eq_, assert_almost_equal, assert_greater
from wordfreq.query import (word_frequency, average_frequency, wordlist_size,
get_wordlists)
def test_freq_examples():
assert_almost_equal(
word_frequency('normalization', 'en', 'google-books'),
1.767e-6, places=9
)
assert_almost_equal(
word_frequency('normalisation', 'fr', 'leeds-internet'),
4.162e-6, places=9
)
assert_greater(
word_frequency('lol', 'xx', 'twitter'),
word_frequency('lol', 'en', 'google-books')
)
eq_(
word_frequency('totallyfakeword', 'en', 'multi', -1),
-1
)
def _check_normalized_frequencies(wordlist, lang):
assert_almost_equal(
average_frequency(wordlist, lang) * wordlist_size(wordlist, lang),
1.0, places=6
)
def test_normalized_frequencies():
for list_info in get_wordlists():
wordlist = list_info['wordlist']
lang = list_info['lang']
yield _check_normalized_frequencies, wordlist, lang