public void Should_SerializeToJson_ForStandardInput()
{
//arrange
int dimensions = 2;
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
IMatrixProvider matrixProvider = new MatrixProvider(jsonSerializationProvider, dimensions);
//act
matrixProvider.SerializeToJson();
//assert
A.CallTo(() => jsonSerializationProvider.Serialize(null)).WithAnyArguments().MustHaveHappened();
}
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);
}
public void Should_GetValue_ForStandardInput()
{
//arrange
int dimensions = 2;
double expectedOutput = 2;
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
IMatrixProvider matrixProvider = new MathDotNetSparseMatrixProvider(jsonSerializationProvider, dimensions);
//act
double actualOutput = matrixProvider.GetValue(0, 0);
//assert
actualOutput.Should().Be(expectedOutput);
}
public void Should_ConstructMatrixProvider_ForStandardInput()
{
//arrange
int dimensions = 2;
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
//act
IMatrixProvider matrixProvider = new MatrixProvider(jsonSerializationProvider, dimensions);
//assert
matrixProvider.GetValue(0, 0).Should().Be(2);
matrixProvider.GetValue(0, 1).Should().Be(0);
matrixProvider.GetValue(1, 0).Should().Be(0);
matrixProvider.GetValue(1, 1).Should().Be(2);
}
public void Should_SetValue_ForStandardInput()
{
//arrange
int dimensions = 2;
double newValue = 5;
IJsonSerializationProvider jsonSerializationProvider = A.Fake <IJsonSerializationProvider>();
IMatrixProvider matrixProvider = new MatrixProvider(jsonSerializationProvider, dimensions);
matrixProvider.SetValue(0, 0, newValue);
//act
double actualOutput = matrixProvider.GetValue(0, 0);
//assert
actualOutput.Should().Be(newValue);
}
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);
}
/// <summary>
/// Constructor for MathDotNetSparseMatrixProvider; initializes the sparse matrix such that M[i][i] = 2 + n
/// </summary>
/// <param name="jsonSerializationProvider">Serialization provider</param>
/// <param name="dimensions">Number of rows and columns</param>
public MathDotNetSparseMatrixProvider(IJsonSerializationProvider jsonSerializationProvider, int dimensions)
{
_jsonSerializationProvider = jsonSerializationProvider;
_dimensions = dimensions;
_sparseMatrix = SparseMatrix.CreateDiagonal(_dimensions, _dimensions, 2);
}
/// <summary>
/// HTTP provider constructor
/// </summary>
/// <param name="jsonSerializationProvider">JSON serialization provider</param>
public SystemDotNetHttpProvider(IJsonSerializationProvider jsonSerializationProvider)
{
_httpClient = new HttpClient();
_jsonSerializationProvider = jsonSerializationProvider;
}
