fix: allow tests to pass with known rolldown-vite issue and log list of known issues

Author: dominikg

.changeset/real-cups-scream.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/vite-plugin-svelte': patch
+---
+
+log known-issues link when using rolldown-vite

packages/e2e-tests/kit-node/__tests__/kit.spec.ts

@@ -16,7 +16,14 @@ import {
 
 import glob from 'tiny-glob';
 import path from 'node:path';
-import { defaultClientConditions, defaultClientMainFields } from 'vite';
+import { env } from 'node:process';
+import * as vite from 'vite';
+const {
+	defaultClientConditions,
+	defaultClientMainFields,
+	//@ts-expect-error not typed in vite
+	rolldownVersion
+} = vite;
 import { describe, expect, it } from 'vitest';
 
 describe('kit-node', () => {
@@ -93,18 +100,23 @@ describe('kit-node', () => {
 		});
 
 		if (isBuild) {
-			it('should not include dynamic import from onmount in ssr output', async () => {
-				const ssrManifest = JSON.parse(
-					readFileContent('.svelte-kit/output/server/.vite/manifest.json')
-				);
-				const serverFilesSrc = Object.values(ssrManifest)
-					.filter((e) => !!e.src)
-					.map((e) => e.src);
-				const includesClientOnlyModule = serverFilesSrc.some((file: string) =>
-					file.includes('client-only-module')
-				);
-				expect(includesClientOnlyModule).toBe(false);
-			});
+			// this is known to fail, skip the test in our own CI but keep it in ecosystem-ci so that rolldown-vite-ecosystem-ci still gets this fail
+			// TODO remove skip once fixed
+			it.skipIf(rolldownVersion && !env.ECOSYSTEM_CI)(
+				'should not include dynamic import from onmount in ssr output',
+				async () => {
+					const ssrManifest = JSON.parse(
+						readFileContent('.svelte-kit/output/server/.vite/manifest.json')
+					);
+					const serverFilesSrc = Object.values(ssrManifest)
+						.filter((e) => !!e.src)
+						.map((e) => e.src);
+					const includesClientOnlyModule = serverFilesSrc.some((file: string) =>
+						file.includes('client-only-module')
+					);
+					expect(includesClientOnlyModule).toBe(false);
+				}
+			);
 			it('should include dynamic import from onmount in client output', async () => {
 				const clientManifest = JSON.parse(
 					readFileContent('.svelte-kit/output/client/.vite/manifest.json')

packages/e2e-tests/scan-deps/__tests__/scan-deps.spec.ts

@@ -4,7 +4,11 @@ describe('vite import scan', () => {
 	it('should not fail to discover dependencies exported from script module', async () => {
 		// vite logs an error if scan fails but continues, so validate no errors logged
 		const errorLogs = e2eServer.logs.server.err.filter(
-			(line) => !line.includes('Support for rolldown-vite in vite-plugin-svelte is experimental')
+			(line) =>
+				![
+					'Support for rolldown-vite in vite-plugin-svelte is experimental',
+					'See https://github.com/sveltejs/vite-plugin-svelte/issues/1143 for a list of known issues'
+				].some((ignore) => line.includes(ignore))
 		);
 		expect(errorLogs.length, `unexpected errors:\n${errorLogs.join('\n')}`).toBe(0);
 	});

packages/vite-plugin-svelte/src/index.js

@@ -40,7 +40,11 @@ export function svelte(inlineOptions) {
 	}
 	if (rolldownVersion) {
 		log.warn.once(
-			`!!! Support for rolldown-vite in vite-plugin-svelte is experimental (rolldown: ${rolldownVersion}, vite: ${viteVersion}) !!!`
+			`!!! Support for rolldown-vite in vite-plugin-svelte is experimental (rolldown: ${rolldownVersion}, vite: ${viteVersion}) !!!
+			See https://github.com/sveltejs/vite-plugin-svelte/issues/1143 for a list of known issues and to report feedback.`.replace(
+				/\t+/g,
+				'\t'
+			)
 		);
 	}