Solution 0x8f0c563f9b856c1260d72d24bcf08af92697fd1617558c23633d97ff7c761b73

T2T-Item: 0x8f0c563f9b856c1260d72d24bcf08af92697fd1617558c23633d97ff7c761b73
T2T-Issue: 0x98062380597bea3942e80b35090b356d0ac3e0e54c88cbbf251faa36758056f4

tests/acceptance/1/CRITERIA.json

@@ -0,0 +1,30 @@
+{
+  "schema": "elffuss-t2t/criteria@2",
+  "issue": 1,
+  "criteria": [
+    {
+      "index": 1,
+      "tests": [
+        "tests/acceptance/1/criteria.test.js::criterion 1"
+      ]
+    },
+    {
+      "index": 2,
+      "tests": [
+        "tests/acceptance/1/criteria.test.js::criterion 2"
+      ]
+    },
+    {
+      "index": 3,
+      "tests": [
+        "tests/acceptance/1/criteria.test.js::criterion 3"
+      ]
+    },
+    {
+      "index": 4,
+      "tests": [
+        "tests/acceptance/1/criteria.test.js::criterion 4"
+      ]
+    }
+  ]
+}

tests/acceptance/1/criteria.test.js

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+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import * as mod from '../../../diarize.mjs' // the code under test: call it as mod.<name>(...)
+const source = readFileSync(new URL('../../../diarize.mjs', import.meta.url), 'utf8') // the text of diarize.mjs, for a criterion about how the file is written
+
+test('criterion 1', () => {
+  // `cosine([1, 2, 3], [1, 2])` throws an Error whose message starts with `cosine:`.
+  assert.rejects(() => mod.cosine([1, 2, 3], [1, 2]), /cosine:/)
+})
+
+test('criterion 2', () => {
+  // `cosine([1, 0], [1, 0, 5])` throws an Error whose message starts with `cosine:`.
+  assert.rejects(() => mod.cosine([1, 0], [1, 0, 5]), /cosine:/)
+})
+
+test('criterion 3', () => {
+  // `cosine([1, 0], [1, 0])` returns 1.
+  assert.deepEqual(mod.cosine([1, 0], [1, 0]), 1)
+})
+
+test('criterion 4', () => {
+  // `cosine([0, 0], [0, 0])` returns 0.
+  assert.deepEqual(mod.cosine([0, 0], [0, 0]), 0)
+})