test: add test for useCombinedRefs hook (#2)

Author: jsardev

package.json

@@ -24,6 +24,7 @@
   },
   "devDependencies": {
     "@iconify-json/lucide": "1.1.131",
+    "@testing-library/react": "^14.0.0",
     "@types/lodash": "^4.14.199",
     "@types/node": "^20.8.2",
     "@types/react": "18.2.24",

pnpm-lock.yaml

@@ -0,0 +1,21 @@
+// @vitest-environment happy-dom
+
+import { render } from '@testing-library/react'
+import { expect, test } from 'vitest'
+
+import { useCombinedRefs } from './useCombinedRefs'
+
+test('should copy ref value to all passed instances', () => {
+  const refs = [{ current: null }, { current: null }]
+
+  const TestComponent = () => {
+    const ref = useCombinedRefs<HTMLDivElement>(...refs)
+    return <div ref={ref} />
+  }
+
+  const { container } = render(<TestComponent />)
+
+  refs.forEach((ref) => {
+    expect(ref.current).toEqual(container.firstChild)
+  })
+})