public void RemoveAt_WhenIndexIsOutOfRange_ShouldThrowIndexOutOfRangeException()
{
var matrix = new Matrix <int>(4, 4);
var collection = new RowCollection <int>(matrix);
Assert.Throws <IndexOutOfRangeException>(() => collection.RemoveAt(4));
Assert.Throws <IndexOutOfRangeException>(() => collection.RemoveAt(-1));
}
public void RemoveAt_WhenIndexIsValid_ShouldRemoveRow()
{
var matrix = new Matrix <int>(4, 4);
var collection = new RowCollection <int>(matrix);
collection.RemoveAt(0);
Assert.Equal(3, collection.Count);
Assert.Equal(3, collection.LongCount);
}