public void Test_Span2DT_CopyTo2D_2()
{
int[,] array =
{
{ 1, 2, 3 },
{ 4, 5, 6 }
};
// Same as above, but with extra initial slicing
Span2D <int> span2d = new Span2D <int>(array, 0, 1, 2, 2);
int[,] target = new int[2, 2];
span2d.CopyTo(target);
int[,] expected =
{
{ 2, 3 },
{ 5, 6 }
};
CollectionAssert.AreEqual(target, expected);
Assert.ThrowsException <ArgumentException>(() => new Span2D <int>(array).CopyTo(new Span2D <int>(target)));
}
public void Test_Span2DT_CopyTo_Empty()
{
Span2D <int> span2d = Span2D <int> .Empty;
int[] target = new int[0];
// Copying an emoty Span2D<T> to an empty array is just a no-op
span2d.CopyTo(target);
}
public void Test_Span2DT_CopyTo2D_1()
{
int[,] array =
{
{ 1, 2, 3 },
{ 4, 5, 6 }
};
Span2D <int> span2d = new Span2D <int>(array);
int[,] target = new int[2, 3];
// Same as above, but copying to a target Span2D<T> instead. Note
// that this method uses the implicit T[,] to Span2D<T> conversion.
span2d.CopyTo(target);
CollectionAssert.AreEqual(array, target);
Assert.ThrowsException <ArgumentException>(() => new Span2D <int>(array).CopyTo(Span2D <int> .Empty));
}
public void Test_Span2DT_CopyTo_1()
{
int[,] array =
{
{ 1, 2, 3 },
{ 4, 5, 6 }
};
Span2D <int> span2d = new Span2D <int>(array);
int[] target = new int[array.Length];
// Here we copy a Span2D<T> to a target Span<T> mapping an array.
// This is valid, and the data will just be copied in row-major order.
span2d.CopyTo(target);
CollectionAssert.AreEqual(array, target);
// Exception due to the target span being too small for the source Span2D<T> instance
Assert.ThrowsException <ArgumentException>(() => new Span2D <int>(array).CopyTo(Span <int> .Empty));
}
public void Test_Span2DT_CopyTo_2()
{
int[,] array =
{
{ 1, 2, 3 },
{ 4, 5, 6 }
};
// Same as above, but with different initial slicing
Span2D <int> span2d = new Span2D <int>(array, 0, 1, 2, 2);
int[] target = new int[4];
span2d.CopyTo(target);
int[] expected = { 2, 3, 5, 6 };
CollectionAssert.AreEqual(target, expected);
Assert.ThrowsException <ArgumentException>(() => new Span2D <int>(array).CopyTo(Span <int> .Empty));
Assert.ThrowsException <ArgumentException>(() => new Span2D <int>(array, 0, 1, 2, 2).CopyTo(Span <int> .Empty));
}
