using LCU.Library.Internal.IncentiveApiModels.Entities;
using NUnit.Framework;

namespace Application.UnitTests.Entities
{
    public class RegionTest
    {
        [Test]
        public void Regions_ContainsRegions()
        {
            var regions = Region.Regions;

            Assert.AreEqual(4, regions.Count);
            Assert.Contains(Region.North, regions);
            Assert.Contains(Region.South, regions);
            Assert.Contains(Region.East, regions);
            Assert.Contains(Region.West, regions);
        }

        [Test]
        public void FindByCode_ValidCodes_ReturnsRegion()
        {
            Assert.AreSame(Region.North, Region.FindByCode("NORTH"));
            Assert.AreSame(Region.South, Region.FindByCode("SOUTH"));
            Assert.AreSame(Region.East, Region.FindByCode("EAST"));
            Assert.AreSame(Region.West, Region.FindByCode("WEST"));
        }

        [TestCase(null)]
        [TestCase("")]
        [TestCase(" ")]
        [TestCase("INVALID")]
        public void FindByCode_InvalidCodes_ReturnsNull(string regionCode)
        {
            Assert.Null(Region.FindByCode(regionCode));
        }
    }
}