test: add comprehensive integration tests for Prototypes module

[ooples]

Summary

• Add 58 comprehensive integration tests for the Prototypes module
• Tests cover PrototypeVector, PrototypeAdamOptimizer, SimpleLinearRegression, and SimpleNeuralNetwork
• Remove stale CLBlast project reference from test project

Tests Added

PrototypeVector (26 tests)

• Constructor and indexer operations
• Factory methods (Zeros, Ones, FromArray)
• Arithmetic operations (Add, Subtract, Multiply, Divide)
• Mathematical functions (Sqrt, Power)
• Length mismatch validation
• Multi-type support (double, float, decimal)

PrototypeAdamOptimizer (12 tests)

• Constructor with default and custom parameters
• Parameter update behavior
• Time step tracking
• State reset
• Convergence verification
• Null argument validation

SimpleLinearRegression (9 tests)

• Model initialization
• Single and batch predictions
• Training reduces MSE
• MSE and R2 score computation
• Learning synthetic data

SimpleNeuralNetwork (11 tests)

• Network initialization and deterministic seeding
• Forward pass output
• Loss computation
• Gradient computation and backward pass
• Parameter get/set
• XOR training scenario

Test plan

• All 58 tests pass on net10.0 framework
• Build succeeds with no errors
• No breaking changes to existing code

Closes #667

🤖 Generated with Claude Code

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Project	Deployment	Review	Updated (UTC)
aidotnet-playground-api	Ready	Preview, Comment	Jan 23, 2026 9:41pm

[coderabbitai]

Summary by CodeRabbit

Release Notes

• Tests

  • Introduced comprehensive integration test suite for prototype components covering vector operations, optimizer behavior, linear regression training and accuracy, neural network computations, and cross-component scenarios with numerical stability validation.

• Chores

  • Removed unused project dependency reference.

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Walkthrough

Removed a native CLBlast project dependency from test configuration and added comprehensive integration tests for the Prototypes module, including PrototypeVector, PrototypeAdamOptimizer, SimpleLinearRegression, SimpleNeuralNetwork, and cross-component operations.

Changes

Cohort / File(s)	Summary
Project Configuration tests/AiDotNet.Tests/AiDotNetTests.csproj	Removed ProjectReference to AiDotNet.Native.CLBlast.csproj from net10.0 condition group
Prototypes Integration Tests tests/AiDotNet.Tests/IntegrationTests/Prototypes/PrototypesIntegrationTests.cs	New comprehensive test suite covering PrototypeVector construction/indexing/arithmetic, PrototypeAdamOptimizer parameter updates/convergence, SimpleLinearRegression training/predictions, SimpleNeuralNetwork forward/backward passes, XOR training, and cross-component integration scenarios with 50+ test methods

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related issues

• test: Add integration tests for Prototypes module [P3] #667 — PR directly implements integration tests for the Prototypes module as specified in the acceptance criteria for adding test coverage to the src/Prototypes/ source files.

Suggested labels

feature

Poem

🐰 Hop hop, tests arise,
Vector, Optimizer, Network in size,
CLBlast removed with care,
Integration tests everywhere!
Coverage blooms, quality shines bright,
Prototypes tested right! ✨

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Linked Issues check	❓ Inconclusive	The PR adds comprehensive integration tests for PrototypeVector, PrototypeAdamOptimizer, SimpleLinearRegression, and SimpleNeuralNetwork, addressing issue #667's requirement for integration tests covering prototype network operations. However, no tests for distance computations or classification are evident, and coverage metrics are not documented.	Verify that all Prototypes module test categories (prototype network operations, distance computations, classification) are adequately covered and document the achieved test coverage percentage to confirm the 80%+ criterion.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'test: add comprehensive integration tests for Prototypes module' directly and clearly describes the main change—adding integration tests for the Prototypes module.
Description check	✅ Passed	The description is fully related to the changeset, providing detailed information about the 58 integration tests added for various components of the Prototypes module and the removal of the CLBlast reference.
Out of Scope Changes check	✅ Passed	All code changes align with the PR's stated objectives: adding integration tests for the Prototypes module and removing a stale CLBlast reference. No unrelated changes are present.

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✨ 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 test/prototypes-integration-tests

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[sonarqubecloud]

Quality Gate passed

Issues
53 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