Feature: Complete Test Script for Bittensor Core Stream Module (SDKv10)

💻 Feature Change

Description

Implemented comprehensive unit tests for the bittensor.core.stream module in SDKv10 branch, which previously had no test coverage. This critical infrastructure component handles streaming responses in the Bittensor network.

Changes Made

• ✅ Created tests/unit_tests/test_stream.py with 29 comprehensive test cases
• ✅ Achieved 97% code coverage for the stream module
• ✅ Tests cover all critical functionality including:
  • StreamingSynapse class initialization and abstract method enforcement
  • BTStreamingResponse creation and ASGI interface compatibility
  • Token streamer execution and streaming workflows
  • Error handling and resource cleanup
  • Custom streamer implementations

Test Coverage Details

29 tests across 12 test classes:

1. StreamingSynapse Initialization (4 tests)

   • Class creation and inheritance
   • Abstract class enforcement
   • Model configuration validation

2. BTStreamingResponseModel (3 tests)

   • Model creation and validation
   • Type checking for token streamers

3. BTStreamingResponse (7 tests)

   • Response creation with/without synapse
   • Async stream_response functionality
   • Token streamer execution
   • Event-stream headers verification
   • ASGI interface compatibility
   • Resource cleanup

4. Abstract Methods Enforcement (3 tests)

   • Ensures abstract methods must be implemented
   • Tests for missing implementations

5. Implementation Tests (6 tests)

   • process_streaming_response implementation
   • extract_response_json implementation
   • Custom token streamers

6. Error Handling (3 tests)

   • Streaming errors
   • Send failures
   • Partial failure scenarios

7. Integration Tests (3 tests)

   • Full streaming workflow
   • Headers preservation
   • Multiple streaming responses

Test Results

29 passed in 0.23s
Code Coverage: 97% (31/32 statements covered)

Why This Matters

Streaming is critical for network communication in Bittensor. This test suite ensures:

• ✅ Reliable streaming functionality
• ✅ Proper error handling
• ✅ ASGI compliance
• ✅ Prevention of regressions
• ✅ Documented behavior through tests

Testing

All tests pass successfully:

pytest tests/unit_tests/test_stream.py -v
pytest tests/unit_tests/test_stream.py --cov=bittensor.core.stream --cov-report=term-missing

Checklist

• Tests added for new functionality
• All tests passing
• High code coverage achieved (97%)
• No breaking changes
• Follows existing test patterns in the codebase
• Ported to SDKv10 branch (as requested)

Contribution by Gittensor, learn more at https://gittensor.io/