public void Should_LowerUpperFactorization_ForStandardInput()
{
//arrange
int dimensions = 2;
double[] ratings = new double[] { 0.5, 0.5 };
double[] expectedOutput = new double[] { 0.25, 0.25 };
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
IMatrixProvider matrixProvider = new MatrixProvider(jsonSerializationProvider, dimensions);
//act
matrixProvider.SerializeToJson();
IEnumerable <double> actualOutput = matrixProvider.LowerUpperFactorizeAndSolve(ratings);
//assert
actualOutput.Should().BeEquivalentTo(expectedOutput);
}