Mock Toucan module, check captureException call

test/index.test.ts

@@ -1,15 +1,28 @@
 import { Hono } from 'hono'
 import { sentry } from '../src'
 
+const captureException = jest.fn()
+jest.mock('toucan-js', () => jest.fn().mockImplementation(() => ({ captureException })))
+
 describe('Sentry middleware', () => {
   const app = new Hono()
 
-  app.use('/hello/*', sentry())
-  app.get('/hello/foo', (c) => c.text('foo'))
+  app.use('/sentry/*', sentry())
+  app.get('/sentry/foo', (c) => c.text('foo'))
+  app.get('/sentry/error', () => {
+    throw new Error('a catastrophic error')
+  })
 
   it('Should initialize Toucan', async () => {
-    const res = await app.request('http://localhost/hello/foo')
+    const res = await app.request('http://localhost/sentry/foo')
     expect(res).not.toBeNull()
     expect(res.status).toBe(200)
   })
+
+  it('Should report errors', async () => {
+    const res = await app.request('http://localhost/sentry/error')
+    expect(res).not.toBeNull()
+    expect(res.status).toBe(500)
+    expect(captureException).toHaveBeenCalled()
+  })
 })