jedarden de0320d23d docs(bf-3zp): verify test infrastructure for mock upstream server

Verified comprehensive test infrastructure already exists in proxy/helpers_test.go:
- MockUpstream with configurable scenarios
- Test mode configuration (TestModeEnv, TestMaxRetriesEnv)
- Request builders and response assertions
- Proxy handler factory and execution helpers
- All helper tests pass successfully

No code changes needed - infrastructure is complete and functional.

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

2026-07-02 14:42:20 -04:00

3.3 KiB

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Test Infrastructure Verification (bf-3zp)

Summary

Verified that comprehensive test infrastructure for mock upstream server already exists in proxy/helpers_test.go.

Existing Infrastructure

1. MockUpstream Server

MockUpstream struct with httptest.Server
Configurable scenarios (429, empty body, invalid JSON, etc.)
Request counting and failure simulation
Custom handler support

2. Test Mode Configuration

TestModeEnv environment variable support
TestMaxRetriesEnv for fast test execution
ConfigureTestEnv() helper function
IsTestMode() and GetTestMaxRetries() functions

3. Test Request Builders

CreateProxyRequest() - Generic request builder
CreateMessagesRequest() - /v1/messages requests
CreateStreamingMessagesRequest() - Streaming requests
CreateNonStreamingMessagesRequest() - Non-streaming requests

4. Response Assertions

AssertStatusCode() - Status code validation
AssertJSONBody() - JSON validation
AssertResponseField() - Field value checking
AssertEmptyBody() - Empty body validation
AssertHeader() - Header validation
AssertContentType() - Content-Type validation

5. Proxy Handler Factory

CreateTestProxyHandler() - Creates configured ProxyHandler instances
Automatically sets test environment variables
Configures high rate limits to avoid test interference

6. Test Execution Helpers

ExecuteProxyRequest() - Execute request through proxy
ExecuteMessagesRequest() - Execute /v1/messages request
Response reading helpers (ReadResponseBody, ReadJSONResponse)

7. Duration Assertions

AssertDurationAtLeast() - Minimum duration validation
AssertDurationInRange() - Range validation
CalculateBackoffDelay() - Backoff calculation helper
CalculateTotalMaxDelay() - Total delay calculation

8. Mock Server Helpers

CreateCountingMockServer() - Counting mock server
CountingMockServer - Wraps httptest.Server with counting

9. Additional Helpers

WaitForCondition() - Polling helper
AssertUpstreamCallCount() - Request count validation
ResetMetrics() - Metrics reset helper
CreateTestRequestBody() - Body builder

Verification Results

All helper tests pass:

go test ./proxy/ -run TestHelper -v
=== RUN   TestHelperFunctions
--- PASS: TestHelperFunctions (0.00s)
    --- PASS: TestHelperFunctions/IsTestMode (0.00s)
    --- PASS: TestHelperFunctions/GetTestMaxRetries (0.00s)
    --- PASS: TestHelperFunctions/CalculateBackoffDelay (0.00s)
    --- PASS: TestHelperFunctions/CreateNonStreamingMessagesRequest (0.00s)
    --- PASS: TestHelperFunctions/CreateStreamingMessagesRequest (0.00s)

Mock upstream tests pass:

go test ./proxy/ -run TestMockUpstreamBasic -v
=== RUN   TestMockUpstreamBasic
--- PASS: TestMockUpstreamBasic (0.00s)
    --- PASS: TestMockUpstreamBasic/success_scenario (0.00s)
    --- PASS: TestMockUpstreamBasic/429_scenario (0.00s)

Conclusion

The test infrastructure described in bead bf-3zp already exists and is fully functional. No new code changes are needed. The infrastructure includes:

✅ net/http/httptest-based mock upstream server
✅ Test helper functions for common setup
✅ Environment/test-mode flags for fast execution
✅ Tests never hit real api.z.ai (uses mock servers)
✅ All helper tests pass

3.3 KiB Raw Blame History