Adding tests for decoder pools

Author: constantinius

test/pool.spec.js

@@ -0,0 +1,38 @@
+import * as chai from 'chai';
+
+import chaiAsPromised from 'chai-as-promised';
+
+import Worker from 'web-worker';
+import Pool from '../src/pool.js';
+import create from '../src/worker/create.js';
+
+chai.use(chaiAsPromised);
+
+const { expect } = chai;
+
+describe('Pool', () => {
+  it('shall decode a buffer with a worker', async () => {
+    const pool = new Pool(1, create);
+    const buffer = new ArrayBuffer(1);
+    (new Uint8Array(buffer)).set([0]);
+    const fileDirectory = { Compression: 1 };
+    const decoded = await pool.decode(fileDirectory, buffer);
+    const decodedArray = new Uint8Array(decoded);
+    expect(decodedArray).to.eql(new Uint8Array([0]));
+    pool.destroy();
+  });
+
+  it('shall properly propagate an exception', async () => {
+    const pool = new Pool(1, () => {
+      return new Worker(new URL('../src/worker/decoder.js', import.meta.url), {
+        type: 'module',
+      });
+    });
+    const buffer = new ArrayBuffer(1);
+    (new Uint8Array(buffer)).set([0]);
+    const fileDirectory = { Compression: -1 };
+
+    await expect(pool.decode(fileDirectory, buffer)).to.eventually.be.rejected;
+    pool.destroy();
+  });
+});