- new open-sse/utils/streamErrorPeek.js: bounded peek of the first bytes of a 200 stream; configured pattern match → 502 so account/combo fallback can run before any byte reaches the client (streaming included). Re-emits RAW bytes so split multi-byte UTF-8 sequences survive the peek (never re-encode decoded text — TextDecoder flush corrupts a lone leading byte to U+FFFD). - chatCore: run the peek after executor.execute when the provider has streamErrorPatterns configured; chat.js passes the settings through. - commandcode executor: same raw-bytes fix in peekForUpstreamError + regression test that fails against the old flush-based re-encode.
9Router Embeddings Tests
Unit tests for the /v1/embeddings endpoint implementation.
Setup
Vitest must be installed globally or in /tmp/node_modules (due to npm workspace hoisting from the root Next.js project):
cd /tmp && npm install vitest
Running Tests
cd tests/
NODE_PATH=/tmp/node_modules /tmp/node_modules/.bin/vitest run --reporter=verbose --config ./vitest.config.js
Or using the package script (from the tests/ directory):
npm test
Test Files
| File | What it tests |
|---|---|
unit/embeddingsCore.test.js |
open-sse/handlers/embeddingsCore.js — core logic: body builder, URL router, headers, handler flow |
unit/embeddings.cloud.test.js |
cloud/src/handlers/embeddings.js — cloud worker handler: auth, validation, rate limits, CORS |
Coverage Summary (59 tests)
embeddingsCore.test.js (36 tests)
buildEmbeddingsBody: single string, array, encoding_format, default floatbuildEmbeddingsUrl: openai, openrouter, openai-compatible-*, unsupported providersbuildEmbeddingsHeaders: per-provider header sets, fallback to accessTokenhandleEmbeddingsCoreinput validation: missing, wrong type, null, emptyhandleEmbeddingsCoresuccess: response format, CORS, Content-Type, callbackshandleEmbeddingsCoreerrors: 400/429/500, network error, invalid JSONhandleEmbeddingsCoretoken refresh: 401 retry, graceful fallback
embeddings.cloud.test.js (23 tests)
- CORS OPTIONS: 200 response, empty body, correct headers
- Authentication: missing key, bad format, old-format key, wrong key value, valid key
- Body validation: invalid JSON, missing model, missing input, bad model
- Happy path: single string, array, correct delegation, CORS header, machineId override
- Rate limiting: all accounts rate-limited → 503 + Retry-After, no credentials → 400
- Error propagation: non-fallback errors passed through, 429 exhausts accounts
- machineId override: validates key, rejects wrong key