/*
 * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
 * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

using System;
using System.Globalization;
using NUnit.Framework;
using QuantConnect.Indicators;

namespace QuantConnect.Tests.Indicators
{
    [TestFixture]
    public class OnBalanceVolumeTests
    {
        [Test]
        public void ComparesAgainstExternalData()
        {
            var onBalanceVolumeIndicator = new OnBalanceVolume("OBV")
            {
                Current =
                {
                    Time = new DateTime(2013, 4, 30),
                    Value = decimal.Parse("1.156486E+08", NumberStyles.Float, CultureInfo.InvariantCulture)
                }
            };

            TestHelper.TestIndicator(onBalanceVolumeIndicator, "spy_with_obv.txt", "OBV",
                (ind, expected) => Assert.AreEqual(
                    expected.ToString("0.##E-00"),
                    (onBalanceVolumeIndicator.Current.Value).ToString("0.##E-00")
                    )

                );
          
        }

        [Test]
        public void ResetsProperly()
        {
            var onBalanceVolumeIndicator = new OnBalanceVolume("OBV");
            foreach (var data in TestHelper.GetTradeBarStream("spy_with_obv.txt", false))
            {
                onBalanceVolumeIndicator.Update(data);
            }

            Assert.IsTrue(onBalanceVolumeIndicator.IsReady);

            onBalanceVolumeIndicator.Reset();
        }
    }
}
