test: Add integration tests for Engines module [P1]

[ooples]

Overview

This issue tracks integration tests for the Engines module. P1 (High Priority).

Parent Issue: #615

Current Status

• Coverage: 0%
• Source Files: 1 file (GpuAccelerationConfig)
• Test Files: None
• Note: Check for additional engine implementations in other locations

Module Location

src/Engines/

Components to Test

Current Files

• GpuAccelerationConfig

Related Engine Components (may be in other locations)

• CPU computation backend
• GPU acceleration settings
• Tensor operation engines
• SIMD optimizations
• Parallel execution configs

Test Categories

1. GPU Configuration Tests

• Test GPU detection
• Test fallback to CPU
• Test memory allocation settings
• Test device selection

2. Backend Tests

• Test CPU backend operations
• Test numerical precision
• Test parallelization

3. Performance Tests

• Benchmark CPU vs GPU (if available)
• Test batch processing efficiency

Edge Cases

• No GPU available
• Insufficient GPU memory
• Multi-GPU scenarios

Acceptance Criteria

• GPU config tested
• Fallback behavior verified
• Configuration serialization works
• 80%+ coverage

Notes

This module may be minimal. Consider if engine-related code exists elsewhere in the codebase.

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🔗 Similar Issues

Related Issues

• test: Add integration tests for FeatureSelectors module [P1] #624
• test: Add integration tests for ReinforcementLearning module [P1] #622
• test: Add integration tests for CrossValidators module [P1] #625
• test: Add integration tests for MetaLearning module [P1] #623
• test: Add comprehensive integration tests for NeuralNetworks module [P0] #616
• test: Add integration tests for Preprocessing module [P1] #626

👤 Suggested Assignees

• ooples

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[ooples]

Closing as complete. Integration tests for the Engines module already exist and comprehensively cover the acceptance criteria:

Existing Test Files:

• GpuAccelerationConfigIntegrationTests.cs (47 tests) - GPU configuration, defaults, enums, conversion to execution options
• GpuExecutionOptionsIntegrationTests.cs (42 tests) - Validation, clone, edge cases, scenarios
• CpuAdvancedAlgebraEngineTests.cs - Octonion, Clifford algebra operations
• CpuHyperbolicManifoldEngineTests.cs - Hyperbolic geometry operations
• CpuSparseEngineTests.cs - Sparse matrix operations

Acceptance Criteria Met:

• ✅ GPU config tested
• ✅ Fallback behavior verified (AlwaysCpu/AlwaysGpu)
• ✅ Configuration serialization (ToString)
• ✅ Multi-GPU scenarios (DeviceIndex)
• ✅ Edge cases (memory limits, streams, etc.)

The issue description stated 0% coverage and no test files, but this was outdated. Tests were implemented in a previous PR.