Chore: homepage tests (#6278)

src/test-utils/render-with-providers.jsx

@@ -0,0 +1,13 @@
+import { render } from "@testing-library/react";
+
+import { SettingsContext } from "utils/contexts/settings";
+
+export function renderWithProviders(ui, { settings = {} } = {}) {
+  const value = {
+    settings,
+    // Most tests don't need to mutate settings; this keeps Container happy.
+    setSettings: () => {},
+  };
+
+  return render(<SettingsContext.Provider value={value}>{ui}</SettingsContext.Provider>);
+}