ef301090ce
All required tests already exist and pass: - Empty/invalid JSON body (non-streaming) triggers retries → 502 - Empty streaming response (zero bytes) triggers retries → 502 - Upstream call counts verified (1 + MAX_RETRIES) - Metric assertions verified (error_type labels) - go test ./proxy/ -run TestResponseValidation -race PASS Co-Authored-By: Claude <noreply@anthropic.com>
87 lines
3.3 KiB
Markdown
87 lines
3.3 KiB
Markdown
# Task BF-2KK: Response Validation Unit Tests
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## Summary
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All unit tests for response validation failures already exist in `proxy/response_validation_test.go` and pass successfully with race detector enabled.
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## Test Coverage Verification
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### 1. Empty JSON Body (Non-Streaming) ✅
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**Test:** `TestResponseValidation_EmptyJSONNonStreaming`
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- Covers MAX_RETRIES=1, 2, and 5
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- Verifies 502 Bad Gateway returned after exhausting retries
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- Verifies exact upstream call count (1 + MAX_RETRIES)
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- Verifies exponential backoff timing
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**Result:** PASS (35.03s with -race)
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### 2. Invalid JSON Body (Non-Streaming) ✅
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**Test:** `TestResponseValidation_InvalidJSONNonStreaming`
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- Covers malformed JSON, truncated JSON, and garbage data
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- Verifies 502 Bad Gateway returned after exhausting retries
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- Verifies exact upstream call count (1 + MAX_RETRIES)
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**Result:** PASS (11.01s with -race)
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### 3. Empty Streaming Response (Zero Bytes) ✅
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**Test:** `TestResponseValidation_EmptyStreaming`
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- Covers MAX_RETRIES=1, 2, and 4
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- Verifies 502 Bad Gateway returned after exhausting retries
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- Verifies exact upstream call count (1 + MAX_RETRIES)
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- Verifies exponential backoff timing
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**Result:** PASS (19.02s with -race)
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### 4. Streaming Zero-Byte Detection ✅
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**Test:** `TestResponseValidation_StreamingZeroBytesPeek`
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- Tests zero bytes on first peek triggers retry
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- Tests non-zero bytes on first peek passes through
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**Result:** PASS (1.00s with -race)
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### 5. Metric Assertions ✅
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**Tests:**
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- `TestResponseValidation_MetricsEmptyJSON` - Verifies `error_type="truncated_response"`
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- `TestResponseValidation_MetricsInvalidJSON` - Verifies `error_type="truncated_response"`
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- `TestResponseValidation_MetricsEmptyStreaming` - Verifies `error_type="empty_streaming"`
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**Coverage:**
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- `zai_proxy_upstream_errors_total` increments correctly
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- `zai_proxy_retry_attempts_total` increments correctly
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- Upstream call counts verified
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**Result:** All PASS (13.02s total with -race)
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### 6. Additional Coverage ✅
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**Tests:**
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- `TestResponseValidation_ValidResponsePassesThrough` - Ensures valid responses don't trigger retries
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- `TestResponseValidation_VariousInvalidBodies` - Comprehensive invalid body test matrix
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## Acceptance Criteria Status
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| Tests in proxy/response_validation_test.go | ✅ | File exists with comprehensive coverage |
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| Empty/invalid JSON (non-streaming) coverage | ✅ | Multiple test cases with various MAX_RETRIES |
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| Zero-byte streaming coverage | ✅ | Multiple test cases with various MAX_RETRIES |
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| Upstream call count assertions | ✅ | All tests verify `1 + MAX_RETRIES` |
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| Metric assertions for upstream errors | ✅ | Dedicated metric tests verify error_type labels |
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| go test ./proxy/ -run TestResponseValidation -race | ✅ | PASS in 86.118s |
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## Test Execution
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```bash
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go test ./proxy/ -run TestResponseValidation -v -race
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```
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**Output:** All 15 test cases PASS
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## Notes
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The tests use the test infrastructure from bf-3zp (helpers_test.go), including:
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- `createTestProxyHandler()` - Creates configured ProxyHandler instances
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- `CreateNonStreamingRequestBody()` / `CreateStreamingRequestBody()` - Request builders
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- `ConfigureTestEnv()` - Test environment setup
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- Metric reset and verification utilities
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No additional work was required - the tests were already comprehensive and passing.
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