/// <summary>
/// Checks the value of the supplied <see cref="ICollection"/> <paramref name="argument"/> and throws
/// an <see cref="ArgumentNullException"/> if it is <see langword="null"/> or contains no elements.
/// </summary>
/// <param name="argument">The array or collection to check.</param>
/// <param name="name">The argument name.</param>
/// <param name="message">An arbitrary message that will be passed to any thrown <see cref="System.ArgumentNullException"/>.</param>
/// <exception cref="System.ArgumentNullException">
/// If the supplied <paramref name="argument"/> is <see langword="null"/> or
/// contains no elements.
/// </exception>
public static void ArgumentHasLength(ICollection argument, string name, string message)
{
if (!ArrayUtils.HasLength(argument))
{
throw new ArgumentNullException(name, message);
}
}
/// <summary>
/// Checks the value of the supplied <see cref="ICollection"/> <paramref name="argument"/> and throws
/// an <see cref="ArgumentNullException"/> if it is <see langword="null"/> or contains no elements.
/// </summary>
/// <param name="argument">The array or collection to check.</param>
/// <param name="name">The argument name.</param>
/// <exception cref="System.ArgumentNullException">
/// If the supplied <paramref name="argument"/> is <see langword="null"/> or
/// contains no elements.
/// </exception>
public static void ArgumentHasLength(ICollection argument, string name)
{
if (!ArrayUtils.HasLength(argument))
{
throw new ArgumentNullException(
name,
string.Format(
CultureInfo.InvariantCulture,
"Argument '{0}' cannot be null or resolve to an empty array", name));
}
}
/// <summary>
/// Checks if the given array or collection is null or has no elements.
/// </summary>
/// <param name="collection"></param>
/// <returns></returns>
public static bool HasLength(ICollection collection)
{
return(ArrayUtils.HasLength(collection));
}
public void HasLengthTests()
{
Assert.IsFalse(ArrayUtils.HasLength(null));
Assert.IsFalse(ArrayUtils.HasLength(new byte[0]));
Assert.IsTrue(ArrayUtils.HasLength(new byte[1]));
}