ci: Test container enhancements (#17008)

packages/testing/containers/n8n-test-container-utils.ts

@@ -0,0 +1,26 @@
+import type { Readable } from 'stream';
+
+/**
+ * Create a log consumer that does not log to the console
+ * @returns A tuple containing the log consumer and a function to throw an error with logs
+ */
+export function createSilentLogConsumer() {
+	const logs: string[] = [];
+
+	const consumer = (stream: Readable) => {
+		stream.on('data', (chunk: Buffer | string) => {
+			logs.push(chunk.toString().trim());
+		});
+	};
+
+	const throwWithLogs = (error: unknown): never => {
+		if (logs.length > 0) {
+			console.error('\n--- Container Logs ---');
+			console.error(logs.join('\n'));
+			console.error('---------------------\n');
+		}
+		throw error;
+	};
+
+	return { consumer, throwWithLogs };
+}