init

node_modules/piscina/test/generics.test.ts

@@ -0,0 +1,46 @@
+import assert from 'node:assert/strict';
+import { resolve } from 'node:path';
+import { test } from 'node:test';
+import Piscina from '../dist';
+
+test('Piscina<T , R> works', async () => {
+  const worker = new Piscina<string, number>({
+    filename: resolve(__dirname, 'fixtures/eval.js')
+  });
+
+  const result: number = await worker.run('Promise.resolve(42)');
+
+  assert.strictEqual(result, 42);
+});
+
+test('Piscina with no generic works', async () => {
+  const worker = new Piscina({
+    filename: resolve(__dirname, 'fixtures/eval.js')
+  });
+
+  const result = await worker.run('Promise.resolve("Hello, world!")');
+
+  assert.strictEqual(result, 'Hello, world!');
+});
+
+test('Piscina<T, R> typescript complains when invalid Task is supplied as wrong type', async () => {
+  const worker = new Piscina<string, number>({
+    filename: resolve(__dirname, 'fixtures/eval.js')
+  });
+
+  // @ts-expect-error complains due to invalid Task being number when expecting string
+  const result = await worker.run(42);
+
+  assert.strictEqual(result, 42);
+});
+
+test('Piscina<T, R> typescript complains when assigning Result to wrong type', async () => {
+  const worker = new Piscina<string, number>({
+    filename: resolve(__dirname, 'fixtures/eval.js')
+  });
+
+  // @ts-expect-error complains due to expecting a number but being assigned to a string
+  const result: string = await worker.run('Promise.resolve(42)');
+
+  assert.strictEqual(result, 42);
+});