test: cover resend plugin

plugins/resend/index.test.ts

@@ -0,0 +1,97 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { ResendPlugin } from './index'
+
+const fetchMock = vi.fn()
+
+describe('ResendPlugin', () => {
+    beforeEach(() => {
+        vi.clearAllMocks()
+        vi.stubGlobal('fetch', fetchMock)
+    })
+
+    it('initializes as an authless plugin and stores the API key', () => {
+        const plugin = new ResendPlugin({ apiKey: 're_test_key' })
+
+        expect(plugin.name).toBe('starbasedb:resend')
+        expect(plugin.opts.requiresAuth).toBe(false)
+        expect(plugin.apiKey).toBe('re_test_key')
+    })
+
+    it('posts email payloads to Resend with bearer auth', async () => {
+        fetchMock.mockResolvedValueOnce({
+            ok: true,
+            json: vi.fn().mockResolvedValue({
+                id: 'email_123',
+                from: 'hello@example.com',
+            }),
+        })
+
+        const plugin = new ResendPlugin({ apiKey: 're_live_key' })
+        const result = await plugin.sendEmail(
+            'hello@example.com',
+            ['ada@example.com', 'grace@example.com'],
+            'Welcome',
+            '<p>Hello</p>'
+        )
+
+        expect(fetchMock).toHaveBeenCalledTimes(1)
+        expect(fetchMock).toHaveBeenCalledWith(
+            'https://api.resend.com/emails',
+            {
+                method: 'POST',
+                headers: {
+                    Authorization: 'Bearer re_live_key',
+                    'Content-Type': 'application/json',
+                },
+                body: JSON.stringify({
+                    from: 'hello@example.com',
+                    to: ['ada@example.com', 'grace@example.com'],
+                    subject: 'Welcome',
+                    html: '<p>Hello</p>',
+                }),
+            }
+        )
+        expect(result).toEqual({
+            id: 'email_123',
+            from: 'hello@example.com',
+        })
+    })
+
+    it('throws the Resend error message when the API rejects the request', async () => {
+        fetchMock.mockResolvedValueOnce({
+            ok: false,
+            json: vi.fn().mockResolvedValue({
+                message: 'Invalid API key',
+            }),
+        })
+
+        const plugin = new ResendPlugin({ apiKey: 'bad_key' })
+
+        await expect(
+            plugin.sendEmail(
+                'hello@example.com',
+                ['ada@example.com'],
+                'Welcome',
+                '<p>Hello</p>'
+            )
+        ).rejects.toThrow('Invalid API key')
+    })
+
+    it('uses a fallback error when Resend returns no message', async () => {
+        fetchMock.mockResolvedValueOnce({
+            ok: false,
+            json: vi.fn().mockResolvedValue({}),
+        })
+
+        const plugin = new ResendPlugin({ apiKey: 'bad_key' })
+
+        await expect(
+            plugin.sendEmail(
+                'hello@example.com',
+                ['ada@example.com'],
+                'Welcome',
+                '<p>Hello</p>'
+            )
+        ).rejects.toThrow('Failed to send email')
+    })
+})