using System.Collections.Generic;
using Claunia.PropertyList;
using Xunit;

namespace plistcil.test
{
    public class NSArrayTests
    {
        /// <summary>
        ///     Tests the addition of a .NET object to the NSArray
        /// </summary>
        [Fact]
        public void AddAndContainsObjectTest()
        {
            NSArray array = new NSArray();
            array.Add(1);

            Assert.True(array.Contains(1));
            Assert.False(array.Contains(2));
        }

        /// <summary>
        ///     Tests the <see cref="NSArray.GetEnumerator" /> method.
        /// </summary>
        [Fact]
        public void EnumeratorTest()
        {
            NSArray array = new NSArray();
            array.Add(0);
            array.Add(1);

            IEnumerator<NSObject> enumerator = array.GetEnumerator();

            Assert.Null(enumerator.Current);

            Assert.True(enumerator.MoveNext());
            Assert.Equal(new NSNumber(0), enumerator.Current);

            Assert.True(enumerator.MoveNext());
            Assert.Equal(new NSNumber(1), enumerator.Current);

            Assert.False(enumerator.MoveNext());
        }

        /// <summary>
        ///     Tests the <see cref="NSArray.IndexOf(object)" /> method for .NET objects.
        /// </summary>
        [Fact]
        public void IndexOfTest()
        {
            NSArray array = new NSArray();
            array.Add(1);
            array.Add("test");

            Assert.Equal(0, array.IndexOf(1));
            Assert.Equal(1, array.IndexOf("test"));
        }

        /// <summary>
        ///     Tests the <see cref="NSArray.Insert(int, object)" /> method for a
        ///     .NET object.
        /// </summary>
        [Fact]
        public void InsertTest()
        {
            NSArray array = new NSArray();
            array.Add(0);
            array.Add(1);
            array.Add(2);

            array.Insert(1, "test");

            Assert.Equal(4,      array.Count);
            Assert.Equal("test", array[1].ToObject());
        }

        /// <summary>
        ///     Tests the <see cref="NSArray.Remove(object)" /> method for a .NET object.
        /// </summary>
        [Fact]
        public void RemoveTest()
        {
            NSArray array = new NSArray();
            array.Add(0);
            Assert.False(array.Remove((object)1));
            Assert.True(array.Remove((object)0));

            Assert.Empty(array);
        }
    }
}