using System.Utility;
using NUnit.Framework;

namespace Chernobyl.Collections.Generic
{
    /// <summary>
    /// Tests for the <see cref="CollectionExtensions"/>.
    /// </summary>
    public class CollectionExtensionsTests
    {
        [Test, Description("Ensures IsInBounds returns false when index is less than zero.")]
        public void BoundsReturnsFalseWhenIndexIsLessThanLength()
            => (new[] { 1, 2, 3 }).IsInBounds(-1).IsFalse("CollectionExtensions.IsInBounds");

        [Test, Description("Ensures IsInBounds returns false when greater than ICollection's length.")]
        public void BoundsReturnsFalseWhenIndexIsGreaterThanLength()
            => (new[] { 1, 2, 3 }).IsInBounds(3).IsFalse("CollectionExtensions.IsInBounds");

        [Test, Description("Ensures IsInBounds returns true when within ICollection.")]
        public void BoundsReturnsTrueWhenIndexIsWithinICollection()
            => (new[] { 1, 2, 3 }).IsInBounds(2).IsTrue("CollectionExtensions.IsInBounds");
    }
}