Add comprehensive integration tests to repo

[ooples]

User Story / Context

• Reference: [US-XXX] (if applicable)
• Base branch: merge-dev2-to-master

Summary

• What changed and why (scoped strictly to the user story / PR intent)

Verification

• [ ] Builds succeed (scoped to changed projects)
• [ ] Unit tests pass locally
• [ ] Code coverage >= 90% for touched code
• [ ] Codecov upload succeeded (if token configured)
• [ ] TFM verification (net46, net6.0, net8.0) passes (if packaging)
• [ ] No unresolved Copilot comments on HEAD

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Record counts before/after your last push:

• Comments on HEAD BEFORE: [N]
• Comments on HEAD AFTER (60s): [M]
• Final HEAD SHA: [sha]

Files Modified

• [ ] List files changed (must align with scope)

Notes

• Any follow-ups, caveats, or migration details

[coderabbitai[bot]]

Summary by CodeRabbit

• Tests

  • Removed the end-to-end JIT compilation integration test suite.
  • Added many new comprehensive integration test suites (linear algebra, wavelets, activation/loss/normalizers/schedulers, interpolation, kernels, Gaussian processes, RBFs, time series, validation, and more).

• Refactor

  • Wavelet implementations consolidated onto common base classes and a shared numeric-ops helper; public wavelet methods now use override dispatch.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

Walkthrough

Removes a JIT compilation integration test and adds many new integration test suites; refactors numerous wavelet implementations to inherit from new abstract base classes and centralizes numeric operations via a shared NumOps helper.

Changes

Cohort / File(s)	Summary
Removed JIT tests \tests/AiDotNet.Tests/IntegrationTests/JitCompilationIntegrationTests.cs``	Deleted the end-to-end JIT compilation integration test class.
New/Added integration tests (many domains) \tests/AiDotNet.Tests/IntegrationTests/ActivationFunctions/ActivationFunctionsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Diffusion/DiffusionSchedulersIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/FitnessCalculators/FitnessCalculatorsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/GaussianProcesses/GaussianProcessesIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Interpolation/InterpolationIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Kernels/KernelsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/LearningRateSchedulers/LearningRateSchedulersIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/LinearAlgebra/MatrixVectorIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/LinearAlgebra/TensorIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/LossFunctions/LossFunctionsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Normalizers/NormalizersIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/OutlierRemoval/OutlierRemovalIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/RadialBasisFunctions/RadialBasisFunctionsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Regularization/RegularizationIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Statistics/StatisticsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/TimeSeries/TimeSeriesIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/Validation/ValidationIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/WaveletFunctions/WaveletFunctionsIntegrationTests.cs``, \tests/AiDotNet.Tests/IntegrationTests/WindowFunctions/WindowFunctionsIntegrationTests.cs``	Added many new integration test classes across domains (activation, diffusion, kernels, interpolation, RBFs, normalizers, losses, schedulers, linear algebra, statistics, time series, validation, wavelets, window functions, etc.) covering instantiation, mathematical properties, edge cases, and integration-style checks.
Wavelet implementations (refactor to base + NumOps) \src/WaveletFunctions/.../BSplineWavelet.cs``, \src/WaveletFunctions/.../BattleLemarieWavelet.cs``, \src/WaveletFunctions/.../BiorthogonalWavelet.cs``, \src/WaveletFunctions/.../CoifletWavelet.cs``, \src/WaveletFunctions/.../ComplexGaussianWavelet.cs``, \src/WaveletFunctions/.../ComplexMorletWavelet.cs``, \src/WaveletFunctions/.../ContinuousMexicanHatWavelet.cs``, \src/WaveletFunctions/.../DOGWavelet.cs``, \src/WaveletFunctions/.../DaubechiesWavelet.cs``, \src/WaveletFunctions/.../FejérKorovkinWavelet.cs``, \src/WaveletFunctions/.../GaborWavelet.cs``, \src/WaveletFunctions/.../GaussianWavelet.cs``, \src/WaveletFunctions/.../HaarWavelet.cs``, \src/WaveletFunctions/.../MexicanHatWavelet.cs``, \src/WaveletFunctions/.../MeyerWavelet.cs``, \src/WaveletFunctions/.../MorletWavelet.cs``, \src/WaveletFunctions/.../PaulWavelet.cs``, \src/WaveletFunctions/.../ShannonWavelet.cs``, \src/WaveletFunctions/.../SymletWavelet.cs``	Changed many concrete wavelet classes to inherit from WaveletFunctionBase<T> (or ComplexWaveletFunctionBase<T> for complex wavelets). Marked previously-implemented public methods as override (Calculate, Decompose, GetScalingCoefficients, GetWaveletCoefficients). Removed per-instance _numOps fields and replaced numeric calls with shared NumOps usage.
New abstract bases for wavelets \src/WaveletFunctions/WaveletFunctionBase.cs``, \src/WaveletFunctions/ComplexWaveletFunctionBase.cs``	Added WaveletFunctionBase<T> and ComplexWaveletFunctionBase<T> with protected static NumOps, abstract APIs for Calculate/Decompose/GetScalingCoefficients/GetWaveletCoefficients, and complex utilities (Convolve, Downsample).

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~45 minutes

• Areas requiring extra attention:
  • Wavelet refactor: ensure override signatures match base abstractions and no behavioral regressions from switching instance-level INumericOperations to shared NumOps.
  • ComplexWaveletFunctionBase Convolve/Downsample: verify correctness and performance characteristics.
  • Large test additions: check determinism, environment independence, and that removed JIT test doesn’t gap CI expectations.

Possibly related PRs

• ooples/AiDotNet#475 — refactors wavelet implementations to use shared NumOps and adds WaveletFunctionBase; strongly related to the wavelet/NumOps changes in this PR.
• ooples/AiDotNet#524 — expands numeric-operations/NumOps and vectorized support used by the new shared NumOps abstraction; related to the NumOps migration.

Poem

🐰 I hopped through bits and bytes tonight,

I swapped few tests and made base classes right.
NumOps now hums, tidy and spry,
Wavelets dance under a shared sky.
I nibble bugs, then bound off light.

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 17.04% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The PR title 'Add comprehensive integration tests to repo' clearly and accurately summarizes the main change in the changeset, which involves adding numerous integration test files across multiple domains.
Description check	✅ Passed	The PR description is a template with placeholders rather than substantive content about the actual changes. However, it does provide context about the intent (adding integration tests) and references the base branch and verification checklist, making it minimally related to the changeset.

✨ Finishing touches

• [ ] 📝 Generate docstrings

🧪 Generate unit tests (beta)

• [ ] Create PR with unit tests
• [ ] Post copyable unit tests in a comment
• [ ] Commit unit tests in branch claude/add-integration-tests-011CUzSaQMh4Aiv3WuTgDh5m

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[sonarqubecloud[bot]]

Quality Gate passed

Issues
27 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud