cloudflare_temp_email

Dream Hunter f5ca8afcce test: add E2E tests for webhook trigger on incoming mail (#878 )

* test: add E2E tests for auto-reply trigger and webhook trigger

- Improve mock reply() in e2e_test_api.ts to send auto-replies via
  SMTP (WorkerMailer) so they reach Mailpit for verification
- Add auto-reply-trigger.spec.ts: verifies auto-reply is sent when
  incoming mail matches source_prefix, and NOT sent otherwise
- Add webhook-trigger.spec.ts: starts a temporary HTTP server to
  receive webhook calls, verifies payload on mail arrival

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: fallback EmailMessage for E2E auto-reply when cloudflare:email is unavailable

In wrangler dev mode without Email Routing binding, `import('cloudflare:email')`
throws, silently caught by auto_reply's try-catch. Add a fallback that constructs
a plain object with a ReadableStream `raw` property so the E2E mock reply() can
send the auto-reply via SMTP to Mailpit.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: handle both \r\n and \n line endings in MIME parser for E2E tests

mimetext uses os.EOL which is \n on Linux (Docker). The parseMimeForReply
function only looked for \r\n, causing it to fail parsing the auto-reply
MIME content in the E2E environment.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: add debug logging and robust raw MIME extraction for E2E auto-reply

- auto_reply.ts: add fallback ReadableStream when cloudflare:email
  is unavailable, attach rawMime directly to replyMessage
- e2e_test_api.ts: try reading rawMime string first, then fallback
  to ReadableStream; add diagnostic console.log for CI debugging

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: skip sealed EmailMessage in E2E mode, await webhook server listen

- auto_reply.ts: use plain object with raw ReadableStream in E2E_TEST_MODE
  (cloudflare:email's EmailMessage is sealed, can't attach extra properties)
- e2e_test_api.ts: simplify mock reply() to read raw ReadableStream directly,
  add defensive check for from without @
- webhook-trigger.spec.ts: await server.listen to ensure socket is bound
  before sending requests (CodeRabbit review feedback)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: add missing await for async startWebhookReceiver in disabled test

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: drop auto-reply E2E test, clean up webhook test

- Remove auto-reply-trigger.spec.ts (cannot test without modifying
  production auto_reply.ts due to sealed EmailMessage from cloudflare:email)
- Clean up e2e_test_api.ts: remove WorkerMailer, MIME parsing, and SMTP
  reply logic that was only needed for auto-reply testing
- Improve webhook test: use dynamic port allocation (port 0) instead of
  hardcoded WEBHOOK_PORT to avoid port conflicts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* test: assert webhook request path in E2E test

Add path assertion to verify webhook request hits /webhook endpoint,
preventing false positives from incorrect routing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-06 16:41:29 +08:00