first commit

packages/@n8n/vitest-config/node-decorators.ts

@@ -0,0 +1,36 @@
+import swc from 'unplugin-swc';
+import { mergeConfig } from 'vitest/config';
+import type { InlineConfig } from 'vitest/node';
+import { createVitestConfig } from './node.js';
+
+const swcPlugin = swc.vite({
+	jsc: {
+		parser: {
+			syntax: 'typescript',
+			decorators: true,
+		},
+		transform: {
+			legacyDecorator: true,
+			decoratorMetadata: true,
+		},
+		target: 'es2022',
+	},
+	// Include node_modules TypeScript files (like @n8n/tournament)
+	exclude: [],
+});
+
+export const createVitestConfigWithDecorators = (options: InlineConfig = {}) => {
+	const baseConfig = createVitestConfig(options);
+	return mergeConfig(baseConfig, {
+		plugins: [swcPlugin],
+		esbuild: false, // Disable esbuild - it doesn't support decoratorMetadata
+		server: {
+			deps: {
+				// Inline all dependencies so SWC can transform them (including TypeScript in node_modules)
+				inline: [/.*/],
+			},
+		},
+	});
+};
+
+export const vitestConfigWithDecorators = createVitestConfigWithDecorators();