tweaks

Author: mdjastrzebski

src/user-event/scroll/__tests__/pull-to-refresh.test.tsx

@@ -69,6 +69,14 @@ describe('pullToRefresh()', () => {
     await expect(user.pullToRefresh(screen.getByTestId('view'))).resolves.toBeUndefined();
   });
 
+  test('does not throw when refreshControl is not a valid element', async () => {
+    // Defensive: `refreshControl` violates its `ReactElement` type and has no `props`.
+    await render(<ScrollView testID="view" refreshControl={'invalid' as any} />);
+    const user = userEvent.setup();
+
+    await expect(user.pullToRefresh(screen.getByTestId('view'))).resolves.toBeUndefined();
+  });
+
   test('throws when passed a non-ScrollView element', async () => {
     await render(<View testID="view" />);
     const user = userEvent.setup();

src/user-event/scroll/pull-to-refresh.ts

@@ -17,7 +17,7 @@ export async function pullToRefresh(
   }
 
   const refreshControl = instance.props.refreshControl;
-  if (refreshControl == null || typeof refreshControl.props.onRefresh !== 'function') {
+  if (typeof refreshControl?.props?.onRefresh !== 'function') {
     return;
   }