public void Should_GetDimensions_ForStandardInput()
{
//arrange
int dimensions = 2;
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
IMatrixProvider matrixProvider = new MatrixProvider(jsonSerializationProvider, dimensions);
//act
double actualOutput = matrixProvider.GetDimensions();
//assert
actualOutput.Should().Be(dimensions);
}