Src/Newtonsoft.Json.Tests/Linq/JArrayTests.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using NUnit.Framework;
using Newtonsoft.Json.Linq;

namespace Newtonsoft.Json.Tests.Linq
{
  public class JArrayTests : TestFixtureBase
  {
    [Test]
    public void Clear()
    {
      JArray a = new JArray { 1 };
      Assert.AreEqual(1, a.Count);

      a.Clear();
      Assert.AreEqual(0, a.Count);
    }

    [Test]
    public void Contains()
    {
      JValue v = new JValue(1);

      JArray a = new JArray { v };

      Assert.AreEqual(false, a.Contains(new JValue(2)));
      Assert.AreEqual(false, a.Contains(new JValue(1)));
      Assert.AreEqual(false, a.Contains(null));
      Assert.AreEqual(true, a.Contains(v));
    }

    [Test]
    public void GenericCollectionCopyTo()
    {
      JArray j = new JArray();
      j.Add(new JValue(1));
      j.Add(new JValue(2));
      j.Add(new JValue(3));
      Assert.AreEqual(3, j.Count);

      JToken[] a = new JToken[5];

      ((ICollection<JToken>)j).CopyTo(a, 1);

      Assert.AreEqual(null, a[0]);

      Assert.AreEqual(1, (int)a[1]);

      Assert.AreEqual(2, (int)a[2]);

      Assert.AreEqual(3, (int)a[3]);

      Assert.AreEqual(null, a[4]);

    }