Create a comprehensive testing kit for Orleans IGrainStorage providers

Completed:

• Create new project Orleans.Persistence.TestKit with proper structure
• Design and implement base test runner class with 18 comprehensive test methods
• Create helper classes and utilities
• Add documentation and examples
• Refactor existing tests to use the new test kit
• Code review completed and feedback addressed
• Updated test method names to match base implementation
• Scanned codebase and ensured complete coverage of existing test scenarios
• Added comprehensive Clear/ETag and state null handling tests

Summary

Successfully createdOrleans.Persistence.TestKit - a comprehensive, production-ready testing framework for IGrainStorage providers.

Complete Test Coverage (18 Methods):

After scanning existing IGrainStorage tests (CommonStorageTests, RelationalStorageTests, DynamoDBStorageTests, etc.) and analyzing critical scenarios, the test kit provides comprehensive coverage:

Basic Operations (6 tests):

• ✅ Basic read/write operations (PersistenceStorage_WriteReadIdCyrillic)
• ✅ Non-existent state handling (PersistenceStorage_ReadNonExistentState)
• ✅ State never null after reading non-existent (PersistenceStorage_ReadNonExistentStateHasNonNullState)
• ✅ State lifecycle (PersistenceStorage_WriteClearWrite)
• ✅ Full clear cycle verification (PersistenceStorage_WriteClearRead)
• ✅ Complete write-read-clear-read cycle (PersistenceStorage_WriteReadClearReadCycle)

Key Type Tests (2 tests):

• ✅ String-based grain keys (PersistenceStorage_WriteRead_StringKey)
• ✅ Integer-based grain keys (PersistenceStorage_WriteRead_IntegerKey)

Clear/Delete Operations (5 tests):

• ✅ Clear before write (PersistenceStorage_ClearBeforeWrite)
• ✅ State never null after clear (PersistenceStorage_ClearStateDoesNotNullifyState)
• ✅ ETag updates on clear (PersistenceStorage_ClearUpdatesETag)
• ✅ Read after clear (PersistenceStorage_ReadAfterClear)
• ✅ Multiple clear operations idempotency (PersistenceStorage_MultipleClearOperations)

Consistency Tests (4 tests):

• ✅ Duplicate detection (PersistenceStorage_WriteDuplicateFailsWithInconsistentStateException)
• ✅ ETag validation (PersistenceStorage_WriteInconsistentFailsWithInconsistentStateException)
• ✅ ETag update verification (PersistenceStorage_ETagChangesOnWrite)
• ✅ Same-value writes update ETag (PersistenceStorage_WriteWithSameValuesUpdatesETag)

Concurrency Tests (1 test):

• ✅ Parallel operations (PersistenceStorage_WriteReadWriteReadStatesInParallel)

Examples Provided:

• ✅ MemoryGrainStorage implementation with all 18 test methods
• ✅ AzureTableGrainStorage implementation with all 18 test methods

The package follows all Orleans conventions, patterns, and coding standards. It thoroughly covers all test scenarios from existing storage provider test implementations, with special emphasis on Clear operation behavior, ETag handling, and state nullability guarantees.

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Microsoft Reviewers:Open in CodeFlow