#155

frontend/src/components/ErrorScreen.test.tsx

@@ -0,0 +1,32 @@
+import { render, screen } from '@testing-library/react'
+import { HelmetProvider } from 'react-helmet-async'
+import { describe, expect, it } from 'vitest'
+
+import ErrorScreen from '@/components/ErrorScreen'
+
+describe ('ErrorScreen', () => {
+  it.each ([
+    [403, '権限ないよ（笑）'],
+    [404, 'ページないよ（笑）'],
+    [500, '鯖でエラー出たって（嘲笑）'],
+    [503, '鯖死んでるよ（泣）'],
+  ]) ('renders status %s', (status, message) => {
+    render (
+        <HelmetProvider>
+          <ErrorScreen status={status}/>
+        </HelmetProvider>,
+    )
+
+    expect (screen.getByText (String (status))).toBeInTheDocument ()
+    expect (screen.getByText (message)).toBeInTheDocument ()
+    expect (screen.getByAltText ('逃げたギター')).toBeInTheDocument ()
+  })
+
+  it ('throws for unsupported statuses', () => {
+    expect (() => render (
+        <HelmetProvider>
+          <ErrorScreen status={418}/>
+        </HelmetProvider>,
+    )).toThrow ()
+  })
+})