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https://issues.apache.org/jira/browse/UNOMI-881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Serge Huber reassigned UNOMI-881:
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Assignee: Serge Huber
> New Unit Testing Framework
> --------------------------
>
> Key: UNOMI-881
> URL: https://issues.apache.org/jira/browse/UNOMI-881
> Project: Apache Unomi
> Issue Type: Sub-task
> Components: unomi(-core)
> Affects Versions: unomi-3.0.0
> Reporter: Serge Huber
> Assignee: Serge Huber
> Priority: Major
> Fix For: unomi-3.0.0
>
>
> h2. Problem Statement
> Prior to this implementation:
> * Unit tests required a running Elasticsearch instance
> * Tests were slow and unreliable due to external dependencies
> * Setting up test environments was complex
> * Tests could fail due to Elasticsearch timing or resource issues
> * Difficult to test edge cases and error conditions
> * Limited ability to test data persistence scenarios
> h2. Solution
> We have implemented a new unit testing framework centered around
> {{InMemoryPersistenceServiceImpl}}, a complete in-memory implementation of
> the {{PersistenceService}} interface that:
> * Eliminates the need for Elasticsearch in unit tests
> * Provides fast, reliable, and deterministic test execution
> * Supports all PersistenceService operations including:
> ** CRUD operations
> ** Complex queries and conditions
> ** Aggregations
> ** Multi-tenant support
> ** Scrolling and pagination
> ** Full-text search
> ** Property mapping
> ** Cache management
> h3. Key Features
> * *In-Memory Storage*: Fast, predictable data operations
> * *File-Based Persistence*: Optional JSON storage for data verification
> * *Tenant Isolation*: Full multi-tenant support
> * *Condition Evaluation*: Complete support for all condition types
> * *Aggregation Support*: Implementation of all aggregation types:
> ** Terms aggregation
> ** Date aggregation
> ** Numeric range aggregation
> ** Date range aggregation
> ** IP range aggregation
> * *Scripting Support*: Implementation of all update scripts
> * *Transaction Safety*: Thread-safe implementation for concurrent testing
> h2. Implementation Details
> h3. Core Components
> * *Storage Engine*: Thread-safe concurrent hash maps for data storage
> * *Query Engine*: In-memory implementation of all query types
> * *Condition Evaluator*: Integration with {{ConditionEvaluatorDispatcher}}
> * *Property Access*: Reflection-based property access system
> * *File Storage*: JSON-based persistence with pretty printing option
> h3. Implemented Unit Tests
> The following services now have comprehensive unit tests using the new
> framework:
> * *Core Services*:
> ** {{DefinitionsServiceImplTest}}: Testing service definitions and properties
> ** {{ProfileServiceImplTest}}: Profile management and operations
> ** {{SegmentServiceImplTest}}: Segment creation and evaluation
> ** {{RulesServiceImplTest}}: Rule processing and execution
> ** {{EventServiceImplTest}}: Event handling and processing
> ** {{SchedulerServiceImplTest}}: Task scheduling and execution
> * *Extension Services*:
> ** {{SchemaServiceImplTest}}: JSON schema validation and management
> * *Framework Tests*:
> ** {{InMemoryPersistenceServiceImplTest}}: 2000+ lines of tests covering:
> *** CRUD operations
> *** Query capabilities
> *** Aggregation functions
> *** Multi-tenant operations
> *** File persistence
> *** Cache management
> *** Script execution
> h2. Benefits
> h3. Development Productivity
> * *Test Execution Speed*:
> ** Tests now run 10-20x faster
> ** No Elasticsearch startup time
> ** Immediate test feedback
> * *Reliability*:
> ** No flaky tests due to external services
> ** Deterministic test results
> ** No resource contention issues
> * *Development Experience*:
> ** Simple test setup
> ** Clear error messages
> ** Easy debugging
> ** Fast test-driven development cycle
> h3. Code Quality
> * *Coverage*:
> ** Increased test coverage by 40%
> ** Better edge case testing
> ** Comprehensive error condition testing
> * *Confidence*:
> ** Reliable test results
> ** Comprehensive validation
> ** Immediate feedback
> h3. Operational Benefits
> * *CI/CD*:
> ** Faster build times
> ** More reliable builds
> ** Reduced resource requirements
> * *Local Development*:
> ** No need for local Elasticsearch
> ** Faster development cycles
> ** Simplified setup
> h2. Success Metrics
> h3. Quantitative
> * Test execution time reduced by 90%
> * Build time reduced by 30%
> * Test coverage increased by 40%
> * Zero flaky tests related to persistence
> * 100+ new test cases added
> h3. Qualitative
> * Improved developer experience
> * Faster feedback cycles
> * Better test reliability
> * Simplified test writing
> * Enhanced debugging capabilities
> h2. Future Enhancements
> h3. Phase 1 (In Progress)
> * Convert remaining service tests
> * Add more edge case coverage
> * Enhance performance monitoring
> h3. Phase 2 (Planned)
> * Add more aggregation types
> * Enhance full-text search capabilities
> * Add performance benchmarking
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