test: add dist test (closes #231)

.github/workflows/ci.yml

@@ -37,3 +37,4 @@ jobs:
         run: |
           npm run lint
           npm run coverage
+          npm run test:dist

package.json

@@ -105,6 +105,7 @@
 		"prepare": "npm run download:jsons; husky install || echo 'Failed to install husky'",
 		"start": "NODE_ENV=production node --max_old_space_size=3584 --max-semi-space-size=128 --experimental-loader newrelic/esm-loader.mjs dist/index.js",
 		"test": "npm run lint:js && npm run test:mocha",
+		"test:dist": "node --test-reporter=spec test/dist.js",
 		"test:mocha": "NODE_ENV=test FAKE_PROBE_IP=1 NEW_RELIC_ENABLED=false NEW_RELIC_LOG_ENABLED=false mocha",
 		"test:mocha:dev": "TS_NODE_TRANSPILE_ONLY=true NODE_ENV=test FAKE_PROBE_IP=1 NEW_RELIC_ENABLED=false NEW_RELIC_LOG_ENABLED=false mocha",
 		"test:perf": "tsx test-perf/index.ts"

test/dist.js

@@ -0,0 +1,28 @@
+import assert from 'node:assert';
+import cluster from 'node:cluster';
+import { describe, it } from 'node:test';
+
+if (!cluster.isPrimary) {
+	import('../dist/index.js');
+} else {
+	describe('dist build', () => {
+		it('loads and doesn\'t crash', async () => {
+			await import('../dist/index.js');
+
+			await new Promise((resolve, reject) => {
+				setTimeout(resolve, 10000).unref();
+				cluster.removeAllListeners('exit');
+
+				cluster.on('exit', ({ code, signal }) => {
+					reject(new assert.AssertionError({ message: `Exited with code ${code}, signal ${signal}.` }));
+				});
+			});
+
+			cluster.removeAllListeners('exit');
+
+			Object.values(cluster.workers).forEach((worker) => {
+				worker.kill();
+			});
+		});
+	});
+}