using System;

#if NUNIT
using NUnit.Framework;
using TestClassAttribute = NUnit.Framework.TestFixtureAttribute;
using TestMethodAttribute = NUnit.Framework.TestCaseAttribute;
#else
using Microsoft.VisualStudio.TestTools.UnitTesting;
#endif

using Ooui;

namespace Tests
{
    [TestClass]
    public class NodeTests
    {
        [TestMethod]
        public void TextState ()
        {
            var b = new Button ();
            Assert.AreEqual (1, b.StateMessages.Count);
            b.Text = "Hello";
            Assert.AreEqual (2, b.StateMessages.Count);
            b.Text = "Bye";
            Assert.AreEqual (2, b.StateMessages.Count);
        }

        [TestMethod]
        public void InsertBeforeOfRemovedNodeStillWorks ()
        {
            var p = new Div ();
            var c0 = new Span ();
            var c1 = new Span ();
            var c2 = new Span ();
            p.InsertBefore (c2, null);
            p.InsertBefore (c1, c2);
            p.InsertBefore (c0, c1);
            p.RemoveChild (c1);
            var ms = p.StateMessages;
            Assert.AreEqual (3, ms.Count);
            var c0s = (Array)ms[2].Value;
            Assert.AreEqual (2, c0s.Length);
            Assert.AreEqual (c0, c0s.GetValue (0));
            Assert.AreEqual (c2, c0s.GetValue (1));
        }

        [TestMethod]
        public void EventReceptionBubblesDown ()
        {
            var p = new Div ();
            var b = new Button ();
            p.AppendChild (b);
            var clicked = false;
            b.Clicked += (s, e) => {
                clicked = true;
            };
            p.Receive (Message.Event (b.Id, "click"));
            Assert.IsTrue (clicked);
        }

        [TestMethod]
        public void ValueBubblesDown ()
        {
            var p = new Div ();
            var b = new Input ();
            p.AppendChild (b);
            p.Receive (Message.Event (b.Id, "change", "please work"));
            Assert.AreEqual ("please work", b.Value);
        }
    }
}