class CategoricalStatsResultsTests(TestCase):
def setUp(self):
self.results = CategoricalStatsResults('foo', 'Foo', 'my stat', 42,
['a', 'b', 'c', 'd'],
0.01234567890, 0.1151111, 99)
self.p_value = 0.119123123123
def test_str(self):
exp = ('Method name Sample size Number of groups my stat '
'p-value Number of permutations\n foo 42'
' 4 0.0123456789 0.12'
' 99\n')
obs = str(self.results)
self.assertEqual(obs, exp)
def test_repr_html(self):
# Not going to test against exact HTML that we expect, as this could
# easily break and be annoying to constantly update. Do some light
# sanity-checking to ensure there are some of the expected HTML tags.
obs = self.results._repr_html_()
self.assertTrue('<table' in obs)
self.assertTrue('<thead' in obs)
self.assertTrue('<tr' in obs)
self.assertTrue('<th' in obs)
self.assertTrue('<tbody' in obs)
self.assertTrue('<td' in obs)
self.assertTrue('1 rows' in obs)
self.assertTrue('5 columns' in obs)
def test_summary(self):
exp = ('Method name\tSample size\tNumber of groups\tmy stat\tp-value\t'
'Number of permutations\nfoo\t42\t4\t0.0123456789\t0.12\t99\n')
obs = self.results.summary()
self.assertEqual(obs, exp)
def test_format_p_value(self):
obs = self.results._format_p_value(self.p_value, 100)
self.assertEqual(obs, '0.12')
obs = self.results._format_p_value(self.p_value, 250)
self.assertEqual(obs, '0.12')
obs = self.results._format_p_value(self.p_value, 1000)
self.assertEqual(obs, '0.119')
def test_format_p_value_few_perms(self):
obs = self.results._format_p_value(self.p_value, 9)
self.assertEqual(obs, 'Too few permutations to compute p-value '
'(permutations = 9)')
obs = self.results._format_p_value(self.p_value, 1)
self.assertEqual(obs, 'Too few permutations to compute p-value '
'(permutations = 1)')
obs = self.results._format_p_value(self.p_value, 0)
self.assertEqual(obs, 'Too few permutations to compute p-value '
'(permutations = 0)')
def test_format_p_value_none(self):
obs = self.results._format_p_value(None, 0)
self.assertEqual(obs, 'N/A')
