snapshot of https://github.com/ueberdosis/tiptap.git (main, 2026-09-15; blobs > 131072B omitted)

packages/react/tests/integration/useClientBoundary.test.ts

@@ -0,0 +1,26 @@
+/**
+ * @vitest-environment node
+ */
+import { readFileSync } from 'node:fs'
+import { fileURLToPath } from 'node:url'
+
+import { describe, expect, it } from 'vite-plus/test'
+
+// The package boundary must stay a client module so it can be imported from
+// React Server Components without evaluating the class components inside.
+const entries = ['../../src/index.ts', '../../src/menus/index.ts']
+
+describe('use client boundary', () => {
+  it.each(entries)('%s starts with the "use client" directive', entry => {
+    const path = fileURLToPath(new URL(entry, import.meta.url))
+
+    // The directive must be the very first statement (only a BOM may precede
+    // it), otherwise some RSC tooling ignores it. Do not trim leading blanks.
+    const firstLine = readFileSync(path, 'utf8')
+      .replace(/^\uFEFF/, '')
+      .split('\n')[0]
+      .trimEnd()
+
+    expect(firstLine).toMatch(/^(['"])use client\1;?$/)
+  })
+})