优化

src/core/auth/crossTabRefresh.test.ts

@@ -0,0 +1,64 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { coordinateCrossTabRefresh } from './crossTabRefresh'
+
+afterEach(() => vi.unstubAllGlobals())
+
+describe('cross-tab refresh coordination', () => {
+  it('reuses the rotated session after waiting for another tab', async () => {
+    let currentRefreshToken = 'refresh-old'
+    const refresh = vi.fn()
+    const reuseCurrentSession = vi.fn(async () => 'access-new')
+    vi.stubGlobal('navigator', {
+      locks: {
+        request: vi.fn(async (_name: string, callback: () => Promise<string>) => {
+          currentRefreshToken = 'refresh-new'
+          return callback()
+        }),
+      },
+    })
+
+    await expect(coordinateCrossTabRefresh({
+      lockName: 'admin-refresh',
+      observedRefreshToken: 'refresh-old',
+      currentRefreshToken: () => currentRefreshToken,
+      reuseCurrentSession,
+      refresh,
+    })).resolves.toBe('access-new')
+
+    expect(reuseCurrentSession).toHaveBeenCalledOnce()
+    expect(refresh).not.toHaveBeenCalled()
+  })
+
+  it('performs the refresh when the token has not changed', async () => {
+    const refresh = vi.fn(async () => 'access-new')
+    vi.stubGlobal('navigator', {
+      locks: { request: vi.fn(async (_name: string, callback: () => Promise<string>) => callback()) },
+    })
+
+    await expect(coordinateCrossTabRefresh({
+      lockName: 'admin-refresh',
+      observedRefreshToken: 'refresh-old',
+      currentRefreshToken: () => 'refresh-old',
+      reuseCurrentSession: vi.fn(),
+      refresh,
+    })).resolves.toBe('access-new')
+
+    expect(refresh).toHaveBeenCalledWith('refresh-old')
+  })
+
+  it('does not wait for rotation after the shared session was removed', async () => {
+    const refreshError = new Error('session removed')
+    const refresh = vi.fn(async () => { throw refreshError })
+    vi.stubGlobal('navigator', {})
+
+    await expect(coordinateCrossTabRefresh({
+      lockName: 'admin-refresh',
+      observedRefreshToken: 'refresh-old',
+      currentRefreshToken: () => '',
+      reuseCurrentSession: vi.fn(),
+      refresh,
+    })).rejects.toBe(refreshError)
+
+    expect(refresh).toHaveBeenCalledWith('refresh-old')
+  })
+})