feat: ignore *.{test,spec}.{js,ts} and similar files

.changeset/forty-insects-wink.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': minor
+---
+
+feat: ignore \*.{test,spec}.{js,ts} and similar files

packages/kit/kit.vitest.config.js

@@ -20,7 +20,8 @@ export default defineConfig({
 			'**/node_modules/**',
 			'**/.svelte-kit/**',
 			'**/.{idea,git,cache,output,temp}/**',
-			'**/{karma,rollup,webpack,vite,vitest,jest,ava,babel,nyc,cypress,tsup,build}.config.*'
+			'**/{karma,rollup,webpack,vite,vitest,jest,ava,babel,nyc,cypress,tsup,build}.config.*',
+			'**/src/core/sync/create_manifest_data/test/**'
 		]
 	}
 });

packages/kit/src/core/config/index.spec.js

@@ -92,6 +92,7 @@ const get_defaults = (prefix = '') => ({
 		},
 		inlineStyleThreshold: 0,
 		moduleExtensions: ['.js', '.ts'],
+		testExtensions: ['.test.js', '.test.ts', '.spec.js', '.spec.ts', '.stories.svelte'],
 		output: { preloadStrategy: 'modulepreload' },
 		outDir: join(prefix, '.svelte-kit'),
 		serviceWorker: {

packages/kit/src/core/config/options.js

@@ -138,6 +138,13 @@ const options = object(
 			inlineStyleThreshold: number(0),
 
 			moduleExtensions: string_array(['.js', '.ts']),
+			testExtensions: string_array([
+				'.test.js',
+				'.test.ts',
+				'.spec.js',
+				'.spec.ts',
+				'.stories.svelte'
+			]),
 
 			outDir: string('.svelte-kit'),
 

packages/kit/src/core/sync/create_manifest_data/index.js

@@ -84,7 +84,8 @@ function create_matchers(config, cwd) {
 	if (fs.existsSync(config.kit.files.params)) {
 		for (const file of fs.readdirSync(config.kit.files.params)) {
 			const ext = path.extname(file);
-			if (!config.kit.moduleExtensions.includes(ext)) continue;
+			if (config.kit.testExtensions.includes(ext) || !config.kit.moduleExtensions.includes(ext))
+				continue;
 			const type = file.slice(0, -ext.length);
 
 			if (/^\w+$/.test(type)) {
@@ -222,6 +223,7 @@ function create_routes_and_nodes(cwd, config, fallback) {
 			// process files first
 			for (const file of files) {
 				if (file.is_dir) continue;
+				if (config.kit.testExtensions.find((ext) => file.name.endsWith(ext))) continue;
 
 				const ext = valid_extensions.find((ext) => file.name.endsWith(ext));
 				if (!ext) continue;

packages/kit/src/core/sync/create_manifest_data/index.spec.js

@@ -468,7 +468,10 @@ test('ignores things that look like lockfiles', () => {
 
 test('works with custom extensions', () => {
 	const { nodes, routes } = create('samples/custom-extension', {
-		extensions: ['.jazz', '.beebop', '.funk', '.svelte']
+		extensions: ['.jazz', '.beebop', '.funk', '.svelte'],
+		kit: {
+			testExtensions: ['.rizz.jazz']
+		}
 	});
 
 	expect(nodes.map(simplify_node)).toEqual([

packages/kit/src/exports/public.d.ts

@@ -478,6 +478,12 @@ export interface KitConfig {
 	 * @default [".js", ".ts"]
 	 */
 	moduleExtensions?: string[];
+	/**
+	 * An array of file extensions that SvelteKit will treat as test files and will ignore.
+	 *
+	 * @default [".test.js", ".test.ts", ".spec.js", ".spec.ts", ".stories.svelte"]
+	 */
+	testExtensions?: string[];
 	/**
 	 * The directory that SvelteKit writes files to during `dev` and `build`. You should exclude this directory from version control.
 	 * @default ".svelte-kit"

packages/kit/types/index.d.ts

@@ -460,6 +460,12 @@ declare module '@sveltejs/kit' {
 		 * @default [".js", ".ts"]
 		 */
 		moduleExtensions?: string[];
+		/**
+		 * An array of file extensions that SvelteKit will treat as test files and will ignore.
+		 *
+		 * @default [".test.js", ".test.ts", ".spec.js", ".spec.ts", ".stories.svelte"]
+		 */
+		testExtensions?: string[];
 		/**
 		 * The directory that SvelteKit writes files to during `dev` and `build`. You should exclude this directory from version control.
 		 * @default ".svelte-kit"