feat(web): add accepting subscription invites from UI

packages/services/src/Domain/Subscription/SubscriptionManager.spec.ts

@@ -12,6 +12,7 @@ describe('SubscriptionManager', () => {
   beforeEach(() => {
     subscriptionApiService = {} as jest.Mocked<SubscriptionApiServiceInterface>
     subscriptionApiService.cancelInvite = jest.fn()
+    subscriptionApiService.acceptInvite = jest.fn()
     subscriptionApiService.invite = jest.fn()
     subscriptionApiService.listInvites = jest.fn()
 
@@ -80,4 +81,27 @@ describe('SubscriptionManager', () => {
 
     expect(await createManager().listSubscriptionInvitations()).toEqual([])
   })
+
+  it('should accept invite to a shared subscription', async () => {
+    subscriptionApiService.acceptInvite = jest.fn().mockReturnValue({ data: { success: true } })
+
+    expect(await createManager().acceptInvitation('1-2-3')).toEqual({ success: true })
+  })
+
+  it('should not accept invite if the api fails to do so', async () => {
+    subscriptionApiService.acceptInvite = jest.fn().mockReturnValue({ data: { error: { message: 'foobar' } } })
+
+    expect(await createManager().acceptInvitation('1-2-3')).toEqual({ success: false, message: 'foobar' })
+  })
+
+  it('should not accept invite if the api throws an error', async () => {
+    subscriptionApiService.acceptInvite = jest.fn().mockImplementation(() => {
+      throw new Error('Oops')
+    })
+
+    expect(await createManager().acceptInvitation('1-2-3')).toEqual({
+      success: false,
+      message: 'Could not accept invitation.',
+    })
+  })
 })