Added comprehensive tests to verify multi-stream functionality in contracts/stream/tests/integration_suite.rs:
Tests sender creating streams to different recipients:
- Stream 0: → recipient (1000 tokens, 1 token/sec, 0-1000s)
- Stream 1: → recipient2 (2000 tokens, 2 tokens/sec, 0-1000s)
- Stream 2: → recipient (500 tokens, 1 token/sec, 0-500s)
Validates:
- ✅ Distinct stream IDs (0, 1, 2) returned
- ✅ Each stream maintains independent state
- ✅
get_stream_state()returns correct metadata per ID - ✅ Independent withdrawals don't interfere
- ✅ Token balances correctly managed
- ✅ Final totals: recipient (1500), recipient2 (2000), sender (6500)
Tests sender creating streams to same recipient (critical case):
- Stream 0: → recipient (1000 tokens, 0-1000s)
- Stream 1: → recipient (1000 tokens, 0-1000s)
- Stream 2: → recipient (500 tokens, 0-500s)
Validates:
- ✅ Unique stream IDs despite identical recipient
- ✅ State completely isolated per stream_id
- ✅ Each stream tracked independently
- ✅ Recipient receives correct totals from all streams
- ✅ Final total: recipient (2500 tokens from 3 streams)
Added MULTIPLE_STREAMS_TESTS.md with:
- Detailed test purposes and scenarios
- Comprehensive assertion lists
- Security considerations
- Edge cases covered
- All assertions verified
running 27 tests
✅ All 27 tests PASS (25 existing + 2 new)
- 25 pre-existing tests: PASS (no regressions)
- 2 new multi-stream tests: PASS
test result: ok. 27 passed; 0 failed
✅ Distinct Stream IDs: Same sender gets unique IDs (0, 1, 2)
✅ State Isolation: Each stream independent in persistent storage
✅ Metadata Accuracy: get_stream_state() returns correct data per ID
✅ Independent Withdrawals: Withdrawing from stream N doesn't affect stream M
✅ Different Recipients: Multiple recipients handled correctly
✅ Same Recipient Edge Case: Streams with identical recipient remain isolated
✅ Different Parameters: Each stream can have unique rates and durations
✅ Token Safety: All balances correct, conservation verified
✅ Status Transitions: Each stream completes independently
- Sender creates multiple streams (3 in each test)
- Multiple withdrawals at different timestamps
- Independent state tracking per stream_id
- Token transfers to different and same recipients
- Stream completion at different times
- Balance verification across all accounts
- All 25 existing integration tests still pass
- No changes to contract code (only tests added)
- No regressions in functionality
- Token conservation verified
contracts/stream/tests/integration_suite.rs- Added 2 new tests (~400 lines)MULTIPLE_STREAMS_TESTS.md- New documentation
✅ All tests pass
✅ Edge cases covered
✅ Comprehensive documentation
✅ No regressions
✅ Security verified