add basic vowel features

1 files changed, 33 insertions, 0 deletions

diff --git a/src/language.test.ts b/src/language.test.ts
new file mode 100644
index 0000000..e9845a1
--- /dev/null
+++ b/src/language.test.ts
@@ -0,0 +1,33 @@
+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');
+
+});