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import * as lang from './language';
test('correctly output basic vowels', () => {
expect(lang.vowelFeaturesToIpa({
height: lang.VowelHeight.Close,
depth: lang.VowelDepth.Front,
round: false,
long: false,
nasal: false,
})).toBe('i');
expect(lang.vowelFeaturesToIpa({
height: lang.VowelHeight.Mid,
depth: lang.VowelDepth.Central,
round: false,
long: false,
nasal: false,
})).toBe('ə');
expect(lang.vowelFeaturesToIpa({
height: lang.VowelHeight.Open,
depth: lang.VowelDepth.Back,
round: true,
long: false,
nasal: true,
})).toBe('ɒ̃');
expect(lang.vowelFeaturesToIpa({
height: lang.VowelHeight.CloseMid,
depth: lang.VowelDepth.Front,
round: false,
long: true,
nasal: false,
})).toBe('eː');
});
test('correctly output basic consonants', () => {
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Bilabial,
manner: lang.ConsonantManner.Nasal,
voice: true,
})).toBe('m');
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Uvular,
manner: lang.ConsonantManner.NonSibilantFricative,
voice: true,
})).toBe('ʁ');
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Velar,
manner: lang.ConsonantManner.Plosive,
voice: false,
})).toBe('k');
});
test('fail to output impossible consonants', () => {
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Retroflex,
manner: lang.ConsonantManner.NonSibilantAffricate,
voice: false,
})).toBe('');
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Labiodental,
manner: lang.ConsonantManner.Trill,
voice: true,
})).toBe('');
expect(lang.consonantFeaturesToIpa({
place: lang.ConsonantPlace.Palatal,
manner: lang.ConsonantManner.Approximant,
voice: false,
})).toBe('');
});
test('all consonants can be selected', () => {
expect(lang.pickConsonants(
[ lang.ConsonantPlace.Bilabial ],
[ lang.ConsonantManner.Nasal ],
[ true, true ],
)).toEqual([
{
place: lang.ConsonantPlace.Bilabial,
manner: lang.ConsonantManner.Nasal,
voice: false,
},
{
place: lang.ConsonantPlace.Bilabial,
manner: lang.ConsonantManner.Nasal,
voice: true,
},
]);
expect(lang.pickConsonants(
[ lang.ConsonantPlace.Labiodental ],
[
lang.ConsonantManner.Nasal,
lang.ConsonantManner.Plosive,
lang.ConsonantManner.SibilantAffricate,
lang.ConsonantManner.NonSibilantAffricate,
lang.ConsonantManner.SibilantFricative,
lang.ConsonantManner.NonSibilantFricative,
lang.ConsonantManner.Approximant,
lang.ConsonantManner.Tap,
lang.ConsonantManner.Trill,
lang.ConsonantManner.LateralAffricate,
lang.ConsonantManner.LateralFricative,
lang.ConsonantManner.LateralApproximant,
lang.ConsonantManner.LateralTap,
],
[ true, false ],
)).toEqual([
{
place: lang.ConsonantPlace.Labiodental,
manner: lang.ConsonantManner.Nasal,
voice: false,
},
{
place: lang.ConsonantPlace.Labiodental,
manner: lang.ConsonantManner.Plosive,
voice: false,
},
{
place: lang.ConsonantPlace.Labiodental,
manner: lang.ConsonantManner.NonSibilantAffricate,
voice: false,
},
{
place: lang.ConsonantPlace.Labiodental,
manner: lang.ConsonantManner.NonSibilantFricative,
voice: false,
},
]);
expect(lang.pickConsonants(
[ lang.ConsonantPlace.Bilabial, lang.ConsonantPlace.Alveolar ],
[ lang.ConsonantManner.Plosive, lang.ConsonantManner.Tap ],
[ true, true ],
).map(lang.consonantFeaturesToIpa)).toEqual([
'p', 'b', 'ⱱ̟', 't', 'd', 'ɾ̥', 'ɾ',
]);
});
test('vowel positions work correctly', () => {
expect(
lang._vowelXY(lang.VowelHeight.Open, lang.VowelDepth.Back)
).toEqual([0, 0]);
expect(
lang._vowelXY(lang.VowelHeight.NearOpen, lang.VowelDepth.Central)
).toEqual([1.5, 1]);
expect(
lang._vowelXY(lang.VowelHeight.Close, lang.VowelDepth.Front)
).toEqual([8, 6]);
expect(
lang._vowelXY(lang.VowelHeight.Close, lang.VowelDepth.Back)
).toEqual([0, 6]);
});
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