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using System;

using System.Collections;

using System.Collections.Generic;

using System.ComponentModel;

using System.Linq;

using System.Text;

using Newtonsoft.Json.Linq;

using NUnit.Framework;

using System.IO;

namespace Newtonsoft.Json.Tests.Linq

{

  public class JPropertyTests : TestFixtureBase

  {

    [Test]

    public void NullValue()

    {

      JProperty p = new JProperty("TestProperty", null);

      Assert.IsNotNull(p.Value);

      Assert.AreEqual(JTokenType.Null, p.Value.Type);

      Assert.AreEqual(p, p.Value.Parent);

      p.Value = null;

      Assert.IsNotNull(p.Value);

      Assert.AreEqual(JTokenType.Null, p.Value.Type);

      Assert.AreEqual(p, p.Value.Parent);

    }

#if !SILVERLIGHT

    [Test]

    public void ListChanged()

    {

      JProperty p = new JProperty("TestProperty", null);

      IBindingList l = p;

      ListChangedType? listChangedType = null;

      int? index = null;

      l.ListChanged += (sender, args) =>

      {

        listChangedType = args.ListChangedType;

        index = args.NewIndex;

      };

      p.Value = 1;

      Assert.AreEqual(ListChangedType.ItemChanged, listChangedType.Value);

      Assert.AreEqual(0, index.Value); 

    }

#endif

    [Test]

    public void IListCount()

    {

      JProperty p = new JProperty("TestProperty", null);

      IList l = p;

      Assert.AreEqual(1, l.Count);

    }

    [Test]

    [ExpectedException(typeof(Exception), ExpectedMessage = "Cannot add or remove items from Newtonsoft.Json.Linq.JProperty.")]

    public void IListClear()

    {

      JProperty p = new JProperty("TestProperty", null);

      IList l = p;

      l.Clear();

    }

    [Test]

    [ExpectedException(typeof(Exception), ExpectedMessage = "Newtonsoft.Json.Linq.JProperty cannot have multiple values.")]

    public void IListAdd()

    {

      JProperty p = new JProperty("TestProperty", null);

      IList l = p;

      l.Add(null);

    }

    [Test]

    [ExpectedException(typeof(Exception), ExpectedMessage = "Cannot add or remove items from Newtonsoft.Json.Linq.JProperty.")]

    public void IListRemove()

    {

      JProperty p = new JProperty("TestProperty", null);

      IList l = p;

      l.Remove(p.Value);

    }

    [Test]

    public void Load()

    {

      JsonReader reader = new JsonTextReader(new StringReader("{'propertyname':['value1']}"));

      reader.Read();

      Assert.AreEqual(JsonToken.StartObject, reader.TokenType);

      reader.Read();

      JProperty property = JProperty.Load(reader);

      Assert.AreEqual("propertyname", property.Name);

      Assert.IsTrue(JToken.DeepEquals(JArray.Parse("['value1']"), property.Value));

      Assert.AreEqual(JsonToken.EndObject, reader.TokenType);

      reader = new JsonTextReader(new StringReader("{'propertyname':null}"));

      reader.Read();

      Assert.AreEqual(JsonToken.StartObject, reader.TokenType);

      reader.Read();

      property = JProperty.Load(reader);

      Assert.AreEqual("propertyname", property.Name);

      Assert.IsTrue(JToken.DeepEquals(new JValue(null, JTokenType.Null), property.Value));

      Assert.AreEqual(JsonToken.EndObject, reader.TokenType);

    }

    [Test]

    public void MultiContentConstructor()

    {

      JProperty p = new JProperty("error", new List<string> { "one", "two" });

      JArray a = (JArray) p.Value;

      Assert.AreEqual(a.Count, 2);

      Assert.AreEqual("one", (string)a[0]);

      Assert.AreEqual("two", (string)a[1]);

    }

    [Test]

    [ExpectedException(typeof(Exception), ExpectedMessage = "Newtonsoft.Json.Linq.JProperty cannot have multiple values.")]

    public void IListGenericAdd()

    {

      IList<JToken> t = new JProperty("error", new List<string> { "one", "two" });

      t.Add(1);

      t.Add(2);

    }

  }

}