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Failed Tests Report for PR #719 - Memory Migration

Summary of Failed Tests

1. GemmKernelValidationTests (InferenceOptimization)

Test: Execute_MatchesNaiveGemm, GemmTransposeB_MatchesNaive Error: Assert.Equal() Failure: Collections differ

  • Expected: [58, 64, 139, 154]
  • Actual: [0, 0, 0, 0] Root Cause: Data not being copied to tensor properly - likely Array.Copy to Memory<T> issue

2. AudioProcessingTests (Diffusion)

Tests: AudioProcessor_PadOrTruncate_TruncatesCorrectly, AudioProcessor_PadOrTruncate_PadsCorrectly Error: Assert.Equal() Failure: Values differ

  • Expected: 1
  • Actual: 0 Root Cause: Likely foreach over Memory<T> or indexing issue

3. LoRALayerTests / VBLoRAAdapterTests (NeuralNetworks)

Tests: UpdateParameters_UpdatesParametersCorrectly, GetParameterGradients_AfterBackward_ReturnsValidGradients, DenseLayerForward_WithNonZeroInput_ProducesNonZeroOutput Error: Assert.True() Failure and Assert.Contains() Failure: Filter not matched in collection Root Cause: Parameter/gradient access issues with Memory

4. CpuAdvancedAlgebraEngineTests (Engines)

Tests:

  • So3ComposeBatch_IdentityComposition
  • So3ExpLogBatch_RoundTrip
  • So3AdjointBatch_ReturnsRotationMatrices
  • So3ExpBatch_ZeroVectors_ReturnsIdentities
  • Se3ExpBatch_ZeroVector_ReturnsIdentity
  • Se3ExpLogBatch_RoundTrip Error: Stack trace only (likely exception thrown) Root Cause: Memory indexing in Lie algebra operations

5. LieGroupTests (Groups)

Tests: So3_ExpLog_IdentityRoundTrip, Se3_ExpLog_IdentityRoundTrip Error: Stack trace only (likely exception thrown) Root Cause: Same as CpuAdvancedAlgebraEngineTests

6. GradientCorrectnessTests (Autodiff)

Tests: DenseLayer_AutodiffGradients_MatchManualGradients, ResidualLayer_AutodiffGradients_MatchManualGradients Error: Stack trace only (likely exception thrown) Root Cause: Gradient computation with Memory

7. ScientificMLTests / NeuralOperatorTrainingTests (PhysicsInformed)

Tests: HamiltonianNeuralNetwork_TrainUpdatesParameters, DeepOperatorNetwork_TrainUpdatesParameters Error: Assert.False() Failure

  • Expected: False
  • Actual: True Root Cause: Training parameter update check failing

8. InferenceOptimizerTests (Inference)

Tests: InferenceOptimizer_WeightOnlyQuantization_RewritesDenseLayer_OnClonedModel_AndPreservesOutputs, Debug_WeightOnlyQuantization Error: Stack trace only Root Cause: Model cloning/quantization with Memory

Common Patterns to Fix

  1. Array.Copy → Span.CopyTo: Tests using Array.Copy(src, tensor.Data, len) need src.AsSpan().CopyTo(tensor.Data.Span)

  2. Direct indexing on Memory: tensor.Data[i] must be tensor.Data.Span[i]

  3. foreach over Memory: foreach (var x in tensor.Data) must use .ToArray() or iterate over .Span

  4. Assert.Equal on Memory: Assert.Equal(expected, tensor.Data) comparing Memory objects, not values

Files to Check

  1. tests/AiDotNet.Tests/InferenceOptimization/GemmKernelValidationTests.cs
  2. tests/AiDotNet.Tests/UnitTests/Diffusion/AudioProcessingTests.cs
  3. tests/AiDotNet.Tests/UnitTests/NeuralNetworks/LoRALayerTests.cs
  4. tests/AiDotNet.Tests/UnitTests/NeuralNetworks/VBLoRAAdapterTests.cs
  5. tests/AiDotNet.Tests/UnitTests/Engines/CpuAdvancedAlgebraEngineTests.cs
  6. tests/AiDotNet.Tests/UnitTests/Groups/LieGroupTests.cs
  7. tests/AiDotNet.Tests/UnitTests/Autodiff/GradientCorrectnessTests.cs
  8. tests/AiDotNet.Tests/UnitTests/PhysicsInformed/ScientificML/ScientificMLTests.cs
  9. tests/AiDotNet.Tests/UnitTests/PhysicsInformed/NeuralOperators/NeuralOperatorTrainingTests.cs
  10. tests/AiDotNet.Tests/UnitTests/Inference/InferenceOptimizerTests.cs
  11. src/AiDotNet.Tensors/Engines/CpuEngine.cs (Lie group implementations)