public void Clone_ShouldClone()
{
//Arrange
ICell expected = Cell0;
ICell[] cells = { expected };
CellCollection subject = new CellCollection(cells);
//Act
ICellCollection actual = subject.Clone();
//Assert
ReferenceEquals(subject, actual).Should().BeFalse();
ReferenceEquals(subject.At(new IntOf(0)), actual.At(new IntOf(0))).Should().BeTrue();
}
