Add projects

frontend/tests/sponsorMutationRecovery.test.ts

@@ -0,0 +1,40 @@
+import { describe, expect, test, vi } from 'vitest';
+import {
+  isSponsorPartialMutationError,
+  runSponsorMutationWithRecovery,
+} from '../src/features/providers/sponsorMutationRecovery';
+
+describe('sponsor mutation recovery', () => {
+  test('refreshes after a failed multi-endpoint mutation and preserves the original failure', async () => {
+    const originalError = new Error('Claude update failed');
+    const refresh = vi.fn(async () => {});
+
+    let caught: unknown;
+    try {
+      await runSponsorMutationWithRecovery(async () => {
+        throw originalError;
+      }, refresh);
+    } catch (error) {
+      caught = error;
+    }
+
+    expect(refresh).toHaveBeenCalledTimes(1);
+    expect(isSponsorPartialMutationError(caught)).toBe(true);
+    expect((caught as Error & { cause?: unknown }).cause).toBe(originalError);
+  });
+
+  test('does not let a refresh failure replace the original mutation failure', async () => {
+    const originalError = new Error('OpenAI update failed');
+
+    await expect(
+      runSponsorMutationWithRecovery(
+        async () => {
+          throw originalError;
+        },
+        async () => {
+          throw new Error('refresh failed');
+        }
+      )
+    ).rejects.toMatchObject({ cause: originalError });
+  });
+});