php-ml/tests/Math/LinearAlgebra/LUDecompositionTest.php

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<?php
declare(strict_types=1);
namespace Phpml\Tests\Math\LinearAlgebra;
use Phpml\Exception\MatrixException;
use Phpml\Math\LinearAlgebra\LUDecomposition;
use Phpml\Math\Matrix;
use PHPUnit\Framework\TestCase;
/**
* LUDecomposition is used and tested in Matrix::inverse method so not all tests are required
*/
final class LUDecompositionTest extends TestCase
{
public function testNotSquareMatrix(): void
{
$this->expectException(MatrixException::class);
new LUDecomposition(new Matrix([1, 2, 3, 4, 5]));
}
public function testSolveWithInvalidMatrix(): void
{
$this->expectException(MatrixException::class);
$lu = new LUDecomposition(new Matrix([[1, 2], [3, 4]]));
$lu->solve(new Matrix([1, 2, 3]));
}
}