def test_delete(self):
Feature._cache = {}
self.assertEqual(len(Feature._cache), 0)
feature = SuprasegmentalFeature(self.bfm, 'voiced')
character = SuprasegmentalCharacter(self.bfm, 'a')
character.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(len(Feature._cache), 1)
self.assertEqual(character.get_feature_value(feature), HAS_FEATURE)
feature.delete()
self.assertEqual(len(Feature._cache), 0)
self.assertRaises(MismatchedModelsError, character.get_feature_value,
feature)
def test_delete (self):
Feature._cache = {}
self.assertEqual(len(Feature._cache), 0)
feature = SuprasegmentalFeature(self.bfm, 'voiced')
character = SuprasegmentalCharacter(self.bfm, 'a')
character.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(len(Feature._cache), 1)
self.assertEqual(character.get_feature_value(feature), HAS_FEATURE)
feature.delete()
self.assertEqual(len(Feature._cache), 0)
self.assertRaises(MismatchedModelsError, character.get_feature_value,
feature)
def test_normalised_form(self):
feature1 = SuprasegmentalFeature(self.bfm, 'anterior')
character = SuprasegmentalCharacter(self.bfm, 'n')
character.set_feature_value(feature1, HAS_FEATURE)
self.assertEqual(character.normalised_form,
NormalisedForm('{0}{1}'.format(SNFM, HAS_FEATURE)))
# Adding a feature changes the normalised form.
feature2 = SuprasegmentalFeature(self.bfm, 'dental')
# All features must have a value.
self.assertRaises(InvalidCharacterError, getattr, character,
'normalised_form')
character.set_feature_value(feature2, NOT_HAS_FEATURE)
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{1}{2}'.format(SNFM, HAS_FEATURE,
NOT_HAS_FEATURE)))
# The order of the normalised form feature values is
# alphabetical by feature name.
feature3 = SuprasegmentalFeature(self.bfm, 'consonantal')
character.set_feature_value(feature3, HAS_FEATURE)
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{1}{1}{2}'.format(SNFM, HAS_FEATURE,
NOT_HAS_FEATURE)))
# Renaming a feature may change the normalised form.
feature3.name = 'vocalic'
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{1}{2}{1}'.format(SNFM, HAS_FEATURE,
NOT_HAS_FEATURE)))
# Changing a feature value changes the normalised form.
character.set_feature_value(feature1, INAPPLICABLE_FEATURE)
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{3}{2}{1}'.format(SNFM, HAS_FEATURE,
NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Removing a feature value changes the normalised form.
feature3.delete()
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{2}{1}'.format(SNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Adding a feature of a different type does not change the
# normalised form.
feature4 = BaseFeature(self.bfm, 'syllabic')
self.assertEqual(
character.normalised_form,
NormalisedForm('{0}{2}{1}'.format(SNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
def test_suprasegmental_features (self):
self.assertEqual(len(self.bfm.suprasegmental_features), 0)
feature1 = SuprasegmentalFeature(self.bfm, 'voiced')
self.assertEqual(len(self.bfm.suprasegmental_features), 1)
self.assertTrue(feature1 in self.bfm.suprasegmental_features)
feature2 = SuprasegmentalFeature(self.bfm, 'consonantal')
self.assertEqual(len(self.bfm.suprasegmental_features), 2)
self.assertTrue(feature1 in self.bfm.suprasegmental_features)
self.assertTrue(feature2 in self.bfm.suprasegmental_features)
feature2.delete()
self.assertEqual(len(self.bfm.suprasegmental_features), 1)
self.assertTrue(feature1 in self.bfm.suprasegmental_features)
feature1.delete()
self.assertEqual(len(self.bfm.suprasegmental_features), 0)
feature3 = BaseFeature(self.bfm, 'anterior')
self.assertEqual(len(self.bfm.suprasegmental_features), 0)
def test_normalised_form (self):
feature1 = SuprasegmentalFeature(self.bfm, 'anterior')
character = SuprasegmentalCharacter(self.bfm, 'n')
character.set_feature_value(feature1, HAS_FEATURE)
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{1}'.format(SNFM, HAS_FEATURE)))
# Adding a feature changes the normalised form.
feature2 = SuprasegmentalFeature(self.bfm, 'dental')
# All features must have a value.
self.assertRaises(InvalidCharacterError, getattr, character,
'normalised_form')
character.set_feature_value(feature2, NOT_HAS_FEATURE)
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{1}{2}'.format(SNFM, HAS_FEATURE, NOT_HAS_FEATURE)))
# The order of the normalised form feature values is
# alphabetical by feature name.
feature3 = SuprasegmentalFeature(self.bfm, 'consonantal')
character.set_feature_value(feature3, HAS_FEATURE)
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{1}{1}{2}'.format(SNFM, HAS_FEATURE, NOT_HAS_FEATURE)))
# Renaming a feature may change the normalised form.
feature3.name = 'vocalic'
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{1}{2}{1}'.format(SNFM, HAS_FEATURE, NOT_HAS_FEATURE)))
# Changing a feature value changes the normalised form.
character.set_feature_value(feature1, INAPPLICABLE_FEATURE)
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{3}{2}{1}'.format(SNFM, HAS_FEATURE, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Removing a feature value changes the normalised form.
feature3.delete()
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{2}{1}'.format(SNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Adding a feature of a different type does not change the
# normalised form.
feature4 = BaseFeature(self.bfm, 'syllabic')
self.assertEqual(character.normalised_form, NormalisedForm(
'{0}{2}{1}'.format(SNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
