public void When_And_is_called_the_same_EnsureArg_is_returned()
{
// Arrange.
object value = new object();
IEnsureArg <object> ensureArg = Ensure.Arg(value);
// Act.
IEnsureArg <object> returnedEnsureArg = ensureArg.And();
// Assert.
ensureArg.Should().BeSameAs(returnedEnsureArg);
}