using NUnit.Framework;
using System.Collections.Generic;
using System.Linq;
using TINK.Model.Connector.Filter;

namespace TestTINKLib.Fixtures.ObjectTests.Connector.Filter
{
    [TestFixture]
    public class TestIntersectFilter
    {
        [Test]
        public void TestDoFilter_Null()
        {
            var filter = new IntersectGroupFilter(new List<string> { "Tonk" });

            Assert.AreEqual(1, filter.DoFilter(null).Count());
            Assert.AreEqual(
                "Tonk", 
                filter.DoFilter(null).ToArray()[0],
                "Do not apply filtering when null is passed as argement (null-filter).");
        }

        [Test]
        public void TestDoFilter_Empty()
        {
            var filter = new IntersectGroupFilter(new List<string> { "Tonk" });

            Assert.AreEqual(0, filter.DoFilter(new List<string>()).Count());
        }

        [Test]
        public void TestDoFilter()
        {
            var filter = new IntersectGroupFilter(new List<string> { "FR_001", "FR_009" });

            Assert.AreEqual(1, filter.DoFilter(new List<string> { "FR_001", "FR_007" }).Count());
            Assert.AreEqual("FR_001", filter.DoFilter(new List<string> { "FR_001", "FR_007" }).ToArray()[0]);
        }
    }
}