public void SubtractNumbers()
{
SubtractOperation op = SubtractOperation.Instance;
Assert.AreEqual(1 - 2, op.Apply(1, 2));
Assert.AreEqual(1.2 - 3.4, op.Apply(1.2, 3.4));
Assert.AreEqual(1 - 2.3, op.Apply(1, 2.3));
Assert.AreEqual(1.2 - 3, op.Apply(1.2, 3));
}
public void SubtractVectorFromReal()
{
SubtractOperation op = SubtractOperation.Instance;
Vector v = new Vector(new object[] { 1, 2, 3 });
var result = op.Apply(1.5, v);
Assert.IsNotNull(result);
Assert.IsInstanceOfType(result, typeof(Vector));
var vector = (Vector)result;
Assert.AreEqual(3, vector.Length);
Assert.AreEqual(0.5, vector[0]);
Assert.AreEqual(-0.5, vector[1]);
Assert.AreEqual(-1.5, vector[2]);
}
public void SubtractOperation_TwoMatrices_MatricesSubtracted()
{
var matrix1 = new Matrix(new int[2, 2] {
{ 1, 2 }, { 3, 4 }
});
var matrix2 = new Matrix(new int[2, 2] {
{ 1, 2 }, { 3, 4 }
});
var expectedMatrix = new Matrix(new int[2, 2] {
{ 0, 0 }, { 0, 0 }
});
var inputArray = new Matrix[] { matrix1, matrix2 };
var expectedArray = new Matrix[] { expectedMatrix };
var opratrion = new SubtractOperation();
var output = opratrion.Apply(inputArray);
Assert.Equal(expectedArray, output, new MatrixComparer());
}