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using Moq;
using NUnit.Framework;
using XenAdmin.Controls;
using XenAPI;

namespace XenAdminTests.Controls
{
    public class SrPickerLunPerVDIItemTests : UnitTester_SingleConnectionTestFixture
    {
        #region Helper classes disabling static method calls
        public class SrPickerLunPerVDIItemNoImage : SrPickerLunPerVDIItem
        {
            public SrPickerLunPerVDIItemNoImage(SR sr) : base(sr, null, 0, null) { }
            protected override bool CanBeEnabled { get { return true; } }
            protected override void SetImage() { } //Disable static method call
        }

        public class SrPickerLunPerVDIItemNoImageCanBeEnabled : SrPickerLunPerVDIItem
        {
            public SrPickerLunPerVDIItemNoImageCanBeEnabled(SR sr) : base(sr, null, 0, null) { }
            protected override void SetImage() { } //Disable static method call
        } 
        #endregion

        [Test]
        [TestCase(true)]
        [TestCase(false)]
        [Description("Test that the UnsupportedSR call doesn't check the SR is LunPerVDI")]
        public void SrPickerItemUpdateIgnoresUnsupportedSR(bool IsLunPerVdi)
        {
            //As the SrPickerLunPerVDIItem overides the base class call to HBALunePerVDI
            //then expect we don't get any calls to it when CanBeEnabled is also overridden

            //Setup the remainder of the mocks to return true for enabled
            Mock<SR> sr = ObjectManager.NewXenObject<SR>(id);
            sr.Setup(s => s.HBALunPerVDI()).Returns(IsLunPerVdi);
            sr.Setup(s => s.ShowInVDISRList(false)).Returns(true); //ShowHiddenVDIs == true

            SrPickerLunPerVDIItem item = new SrPickerLunPerVDIItemNoImage(sr.Object);
            Assert.That(item.Show, Is.True);
            sr.Verify(s=>s.HBALunPerVDI(), Times.Never());
        }

        [Test]
        [TestCase(true)]
        [Description("Test that the UnsupportedSR call doesn't check the SR is LunPerVDI, but CanBeEnabled does")]
        public void SrVmPickerItemCanBeEnabledChecksSrType(bool IsLunPerVdi)
        {
            Mock<SR> sr = ObjectManager.NewXenObject<SR>(id);
            sr.Setup(s => s.HBALunPerVDI()).Returns(IsLunPerVdi);
            sr.Setup(s => s.ShowInVDISRList(false)).Returns(true); //ShowHiddenVDIs == true
            
            //Below sets CanBeEnabled for the picker items to be true
            sr.Setup(s => s.IsBroken(false)).Returns(false);
            sr.Setup(s => s.CanBeSeenFrom(It.IsAny<Host>())).Returns(true);

            SrPickerLunPerVDIItem item = new SrPickerLunPerVDIItemNoImageCanBeEnabled(sr.Object);
            Assert.That(item.Show, Is.True);

            //Expect only one call to this method as the Unsupported SR call is overridden in SrPickerLunPerVDIItem 
            //This one call coms from SrPickerLunPerVDIItem's CanBeEnabled
            sr.Verify(s => s.HBALunPerVDI(), Times.Once());
        }
    }
}
