feat(server): add fetchSpaceInviteSnapshot helper for cross-instance preview fetch

2026-04-29 21:33:19 +02:00
parent c4f84f8c68
commit 889dfe9b4a
2 changed files with 104 additions and 0 deletions
@@ -0,0 +1,56 @@
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
+import { fetchSpaceInviteSnapshot } from './spaceInviteSnapshot';
+
+describe('fetchSpaceInviteSnapshot', () => {
+  const originalFetch = global.fetch;
+  beforeEach(() => { global.fetch = vi.fn() as any; });
+  afterEach(() => { global.fetch = originalFetch; });
+
+  it('returns snapshot when preview endpoint succeeds', async () => {
+    (global.fetch as any).mockResolvedValueOnce({
+      ok: true,
+      status: 200,
+      json: async () => ({
+        spaceId: 'S1',
+        spaceName: 'Aether',
+        description: 'desc',
+        icon: null,
+        avatarColor: 'mint',
+        memberCount: 12,
+        instanceName: 'Backspace',
+      }),
+    });
+    const snap = await fetchSpaceInviteSnapshot('https://z.example', 'abc123');
+    expect(snap).toEqual({
+      spaceId: 'S1',
+      spaceName: 'Aether',
+      description: 'desc',
+      icon: null,
+      avatarColor: 'mint',
+      memberCount: 12,
+      instanceName: 'Backspace',
+    });
+  });
+
+  it('returns null when preview returns 404', async () => {
+    (global.fetch as any).mockResolvedValueOnce({ ok: false, status: 404, json: async () => ({}) });
+    const snap = await fetchSpaceInviteSnapshot('https://z.example', 'badcode');
+    expect(snap).toBeNull();
+  });
+
+  it('returns null when fetch throws (network error)', async () => {
+    (global.fetch as any).mockRejectedValueOnce(new Error('ECONNREFUSED'));
+    const snap = await fetchSpaceInviteSnapshot('https://z.example', 'abc123');
+    expect(snap).toBeNull();
+  });
+
+  it('aborts after timeout', async () => {
+    (global.fetch as any).mockImplementationOnce((_url: string, opts: any) => {
+      return new Promise((_resolve, reject) => {
+        opts.signal?.addEventListener('abort', () => reject(new Error('aborted')));
+      });
+    });
+    const snap = await fetchSpaceInviteSnapshot('https://z.example', 'abc', 50);
+    expect(snap).toBeNull();
+  });
+});