def _populate_binary_features_model(self):
self.bfm = BinaryFeaturesModel()
self.anterior = BaseFeature(self.bfm, 'anterior')
self.back = BaseFeature(self.bfm, 'back')
self.coronal = BaseFeature(self.bfm, 'coronal')
self.long = BaseFeature(self.bfm, 'long')
self.voiced = BaseFeature(self.bfm, 'voiced')
self.p = BaseCharacter(self.bfm, 'p')
self.p.set_feature_value(self.anterior, HAS_FEATURE)
self.p.set_feature_value(self.back, NOT_HAS_FEATURE)
self.p.set_feature_value(self.coronal, NOT_HAS_FEATURE)
self.p.set_feature_value(self.long, NOT_HAS_FEATURE)
self.p.set_feature_value(self.voiced, NOT_HAS_FEATURE)
self.b = BaseCharacter(self.bfm, 'b')
self.b.set_feature_value(self.anterior, HAS_FEATURE)
self.b.set_feature_value(self.back, NOT_HAS_FEATURE)
self.b.set_feature_value(self.coronal, NOT_HAS_FEATURE)
self.b.set_feature_value(self.long, NOT_HAS_FEATURE)
self.b.set_feature_value(self.voiced, HAS_FEATURE)
self.t = BaseCharacter(self.bfm, 't')
self.t.set_feature_value(self.anterior, HAS_FEATURE)
self.t.set_feature_value(self.back, NOT_HAS_FEATURE)
self.t.set_feature_value(self.coronal, HAS_FEATURE)
self.t.set_feature_value(self.long, NOT_HAS_FEATURE)
self.t.set_feature_value(self.voiced, NOT_HAS_FEATURE)
self.d = BaseCharacter(self.bfm, 'd')
self.d.set_feature_value(self.anterior, HAS_FEATURE)
self.d.set_feature_value(self.back, NOT_HAS_FEATURE)
self.d.set_feature_value(self.coronal, HAS_FEATURE)
self.d.set_feature_value(self.long, NOT_HAS_FEATURE)
self.d.set_feature_value(self.voiced, HAS_FEATURE)
self.q = BaseCharacter(self.bfm, 'q')
self.q.set_feature_value(self.anterior, NOT_HAS_FEATURE)
self.q.set_feature_value(self.back, HAS_FEATURE)
self.q.set_feature_value(self.coronal, NOT_HAS_FEATURE)
self.q.set_feature_value(self.long, NOT_HAS_FEATURE)
self.q.set_feature_value(self.voiced, NOT_HAS_FEATURE)
self.ring = DiacriticCharacter(self.bfm, '̥')
self.ring.set_feature_value(self.anterior, INAPPLICABLE_FEATURE)
self.ring.set_feature_value(self.back, INAPPLICABLE_FEATURE)
self.ring.set_feature_value(self.coronal, INAPPLICABLE_FEATURE)
self.ring.set_feature_value(self.long, INAPPLICABLE_FEATURE)
self.ring.set_feature_value(self.voiced, NOT_HAS_FEATURE)
self.caret = DiacriticCharacter(self.bfm, '̬')
self.caret.set_feature_value(self.anterior, INAPPLICABLE_FEATURE)
self.caret.set_feature_value(self.back, INAPPLICABLE_FEATURE)
self.caret.set_feature_value(self.coronal, INAPPLICABLE_FEATURE)
self.caret.set_feature_value(self.long, INAPPLICABLE_FEATURE)
self.caret.set_feature_value(self.voiced, HAS_FEATURE)
self.ː = SpacingCharacter(self.bfm, 'ː')
self.ː.set_feature_value(self.anterior, INAPPLICABLE_FEATURE)
self.ː.set_feature_value(self.back, INAPPLICABLE_FEATURE)
self.ː.set_feature_value(self.coronal, INAPPLICABLE_FEATURE)
self.ː.set_feature_value(self.long, HAS_FEATURE)
self.ː.set_feature_value(self.voiced, INAPPLICABLE_FEATURE)
def test_base_cluster_creation_illegal(self):
bfm1 = BinaryFeaturesModel()
bfm2 = BinaryFeaturesModel()
character1 = BaseCharacter(bfm1, 'a')
character2 = DiacriticCharacter(bfm2, 'b')
character3 = DiacriticCharacter(bfm1, 'd')
character4 = SpacingCharacter(bfm1, 'e')
nf1 = NormalisedForm('{}{}'.format(BNFM, HAS_FEATURE))
# A BaseCluster must be initialised with either a base
# character or a normalised form.
self.assertRaises(IllegalArgumentError, BaseCluster, bfm1)
# A BaseCluster must not be initialised with both a normalised
# form and any other argument.
self.assertRaises(IllegalArgumentError,
BaseCluster,
bfm1,
base_character=character1,
normalised_form=nf1)
self.assertRaises(IllegalArgumentError,
BaseCluster,
bfm1,
diacritic_characters=[character3],
normalised_form=nf1)
self.assertRaises(IllegalArgumentError,
BaseCluster,
bfm1,
spacing_characters=[character4],
normalised_form=nf1)
# All of the characters in a BaseCluster must be associated with
# the same binary features model.
self.assertRaises(MismatchedModelsError,
BaseCluster,
bfm1,
base_character=character1,
diacritic_characters=[character2])
# A BaseCluster expects specific types of characters in its
# arguments.
self.assertRaises(MismatchedTypesError,
BaseCluster,
bfm1,
base_character=character3)
self.assertRaises(MismatchedTypesError,
BaseCluster,
bfm1,
base_character=character1,
diacritic_characters=[character4])
self.assertRaises(MismatchedTypesError,
BaseCluster,
bfm1,
base_character=character1,
spacing_characters=[character3])
def test_value_characters (self):
feature = BaseFeature(self.bfm, 'voiced')
self.assertEqual(feature.get_value_characters(HAS_FEATURE), set())
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE), set())
character1 = BaseCharacter(self.bfm, 'a')
character1.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(feature.get_value_characters(HAS_FEATURE),
set([character1]))
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE), set())
character1.set_feature_value(feature, NOT_HAS_FEATURE)
self.assertEqual(feature.get_value_characters(HAS_FEATURE), set())
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE),
set([character1]))
character2 = DiacriticCharacter(self.bfm, 'b')
character2.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(feature.get_value_characters(HAS_FEATURE),
set([character2]))
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE),
set([character1]))
character2.set_feature_value(feature, INAPPLICABLE_FEATURE)
self.assertEqual(feature.get_value_characters(HAS_FEATURE), set())
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE),
set([character1]))
character3 = SpacingCharacter(self.bfm, 'c')
character3.set_feature_value(feature, NOT_HAS_FEATURE)
self.assertEqual(feature.get_value_characters(HAS_FEATURE), set())
self.assertEqual(feature.get_value_characters(NOT_HAS_FEATURE),
set([character1, character3]))
def test_object_caching(self):
# Creating a Character with the same IPA form as an existing
# Character must return the existing Character, if both are
# associated with the same BinaryFeaturesModel.
character1 = BaseCharacter(self.bfm, 'a')
character2 = BaseCharacter(self.bfm, 'a')
self.assertEqual(character1, character2)
character3 = BaseCharacter(self.bfm, 'b')
self.assertNotEqual(character1, character3)
bfm2 = BinaryFeaturesModel()
character4 = BaseCharacter(bfm2, 'a')
self.assertNotEqual(character1, character4)
# It is an error to create a Character with the same IPA form
# but of a different type (subclass).
self.assertRaises(InvalidCharacterError, DiacriticCharacter, self.bfm,
'a')
# Initialising of the Character should happen only once.
feature = BaseFeature(self.bfm, 'voiced')
character1.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(character1.get_feature_value(feature), HAS_FEATURE)
character5 = BaseCharacter(self.bfm, 'a')
self.assertEqual(character1.get_feature_value(feature), HAS_FEATURE)
character6 = DiacriticCharacter(self.bfm, 'c')
character6.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(character6.get_feature_value(feature), HAS_FEATURE)
character7 = DiacriticCharacter(self.bfm, 'c')
self.assertEqual(character6.get_feature_value(feature), HAS_FEATURE)
character8 = SpacingCharacter(self.bfm, 'd')
character8.set_feature_value(feature, HAS_FEATURE)
self.assertEqual(character8.get_feature_value(feature), HAS_FEATURE)
character9 = SpacingCharacter(self.bfm, 'd')
self.assertEqual(character8.get_feature_value(feature), HAS_FEATURE)
character10 = SuprasegmentalCharacter(self.bfm, 'e')
feature2 = SuprasegmentalFeature(self.bfm, 'syllabic')
character10.set_feature_value(feature2, HAS_FEATURE)
self.assertEqual(character10.get_feature_value(feature2), HAS_FEATURE)
character11 = SuprasegmentalCharacter(self.bfm, 'e')
self.assertEqual(character10.get_feature_value(feature2), HAS_FEATURE)
def test_normalised_form(self):
feature1 = BaseFeature(self.bfm, 'anterior')
character1 = DiacriticCharacter(self.bfm, 'a')
character1.set_feature_value(feature1, HAS_FEATURE)
self.assertEqual(character1.normalised_form,
NormalisedForm('{0}{1}'.format(BNFM, HAS_FEATURE)))
# Adding a feature changes the normalised form.
feature2 = BaseFeature(self.bfm, 'dental')
character1.set_feature_value(feature2, INAPPLICABLE_FEATURE)
self.assertEqual(
character1.normalised_form,
NormalisedForm('{0}{1}{2}'.format(BNFM, HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# The order of the normalised form feature values is
# alphabetical by feature name.
feature3 = BaseFeature(self.bfm, 'consonantal')
character1.set_feature_value(feature3, NOT_HAS_FEATURE)
self.assertEqual(
character1.normalised_form,
NormalisedForm('{0}{1}{2}{3}'.format(BNFM, HAS_FEATURE,
NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Renaming a feature may change the normalised form.
feature1.name = 'vocalic'
self.assertEqual(
character1.normalised_form,
NormalisedForm('{0}{1}{2}{3}'.format(BNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE,
HAS_FEATURE)))
# Changing a feature value changes the normalised form.
character1.set_feature_value(feature1, NOT_HAS_FEATURE)
self.assertEqual(
character1.normalised_form,
NormalisedForm('{0}{1}{2}{1}'.format(BNFM, NOT_HAS_FEATURE,
INAPPLICABLE_FEATURE)))
# Removing a feature value changes the normalised form.
feature2.delete()
self.assertEqual(
character1.normalised_form,
NormalisedForm('{0}{1}{1}'.format(BNFM, NOT_HAS_FEATURE)))
def test_model(self):
configuration = '''
[Base Features] anterior low syllabic voiced
[Base Characters] a: b: anterior c: low, voiced
[Diacritic Characters] ̥: +anterior
[Spacing Characters] ʰ: -low, +voiced
[Suprasegmental Features] phrase stressed
[Suprasegmental Characters] |: +phrase ˈ: +stressed, +phrase
'''
model = self.parser.parse(configuration)
# Base features.
self.assertEqual(len(model.base_features), 4)
anterior = BaseFeature(model, 'anterior')
low = BaseFeature(model, 'low')
syllabic = BaseFeature(model, 'syllabic')
voiced = BaseFeature(model, 'voiced')
self.assertEqual(len(model.base_features), 4)
self.assertTrue(anterior in model.base_features)
self.assertTrue(low in model.base_features)
self.assertTrue(syllabic in model.base_features)
self.assertTrue(voiced in model.base_features)
# Base characters.
self.assertEqual(len(model.base_characters), 3)
a = BaseCharacter(model, 'a')
b = BaseCharacter(model, 'b')
c = BaseCharacter(model, 'c')
self.assertEqual(len(model.base_characters), 3)
self.assertTrue(a in model.base_characters)
self.assertTrue(b in model.base_characters)
self.assertTrue(c in model.base_characters)
# Diacritic characters.
self.assertEqual(len(model.diacritic_characters), 1)
ring = DiacriticCharacter(model, '̥')
self.assertEqual(len(model.diacritic_characters), 1)
self.assertTrue(ring in model.diacritic_characters)
# Spacing characters.
self.assertEqual(len(model.spacing_characters), 1)
ʰ = SpacingCharacter(model, 'ʰ')
self.assertEqual(len(model.spacing_characters), 1)
self.assertTrue(ʰ in model.spacing_characters)
# Suprasegmental features.
self.assertEqual(len(model.suprasegmental_features), 2)
phrase = SuprasegmentalFeature(model, 'phrase')
stressed = SuprasegmentalFeature(model, 'stressed')
self.assertEqual(len(model.suprasegmental_features), 2)
self.assertTrue(phrase in model.suprasegmental_features)
self.assertTrue(stressed in model.suprasegmental_features)
# Suprasegmental characters.
self.assertEqual(len(model.suprasegmental_characters), 2)
bar = SuprasegmentalCharacter(model, '|')
ˈ = SuprasegmentalCharacter(model, 'ˈ')
self.assertEqual(len(model.suprasegmental_characters), 2)
self.assertTrue(bar in model.suprasegmental_characters)
self.assertTrue(ˈ in model.suprasegmental_characters)
# Feature values.
anterior_has_feature = anterior.get_value_characters(HAS_FEATURE)
self.assertEqual(len(anterior_has_feature), 2)
self.assertTrue(b in anterior_has_feature)
self.assertTrue(ring in anterior_has_feature)
anterior_not_has_feature = anterior.get_value_characters(
NOT_HAS_FEATURE)
self.assertEqual(len(anterior_not_has_feature), 2)
self.assertTrue(a in anterior_not_has_feature)
self.assertTrue(c in anterior_not_has_feature)
anterior_inapplicable_feature = anterior.get_value_characters(
INAPPLICABLE_FEATURE)
self.assertEqual(len(anterior_inapplicable_feature), 1)
self.assertTrue(ʰ in anterior_inapplicable_feature)
phrase_has_feature = phrase.get_value_characters(HAS_FEATURE)
self.assertEqual(len(phrase_has_feature), 2)
self.assertTrue(bar in phrase_has_feature)
self.assertTrue(ˈ in phrase_has_feature)
phrase_not_has_feature = phrase.get_value_characters(NOT_HAS_FEATURE)
self.assertEqual(len(phrase_not_has_feature), 0)
phrase_inapplicable_feature = phrase.get_value_characters(
INAPPLICABLE_FEATURE)
self.assertEqual(len(phrase_inapplicable_feature), 0)
