chore: use offlineaudiocontext for dataset testing

testing/index.ts

@@ -1,19 +1,17 @@
 import {analyzeFullBuffer} from '../src/analyzer';
 
 async function runTests() {
-  const audioContext = new AudioContext();
-  const response = await fetch('http://localhost:9876/base/tests/datasets/manifest.json');
+  const audioContext = new OfflineAudioContext(2, 44100 * 40, 44100);
+  const response = await fetch('/tests/datasets/manifest.json');
   const json: Record<string, number> = await response.json(); // eslint-disable-line @typescript-eslint/no-unsafe-assignment
   for (const fileName of Object.keys(json)) {
     const bpm = json[fileName];
-    const response = await fetch(`http://localhost:9876/base/tests/datasets/${fileName}`);
+    const response = await fetch(`/tests/datasets/${fileName}`);
     const buffer = await response.arrayBuffer();
     const audioBuffer = await audioContext.decodeAudioData(buffer);
     const tempo = await analyzeFullBuffer(audioBuffer);
-    // Console.assert(tempo[0].tempo === bpm, 'The computed tempo is not matching');
+    console.assert(tempo[0].tempo === bpm, 'The computed tempo is not matching');
   }
-
-  await audioContext.close();
 }
 
 runTests(); // eslint-disable-line @typescript-eslint/no-floating-promises