Ombi/PlexRequests.Services.Tests/NotificationServiceTests.cs

#region Copyright
// /************************************************************************
//    Copyright (c) 2016 Jamie Rees
//    File: NotificationServiceTests.cs
//    Created By: Jamie Rees
//   
//    Permission is hereby granted, free of charge, to any person obtaining
//    a copy of this software and associated documentation files (the
//    "Software"), to deal in the Software without restriction, including
//    without limitation the rights to use, copy, modify, merge, publish,
//    distribute, sublicense, and/or sell copies of the Software, and to
//    permit persons to whom the Software is furnished to do so, subject to
//    the following conditions:
//   
//    The above copyright notice and this permission notice shall be
//    included in all copies or substantial portions of the Software.
//   
//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
//    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
//    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
//    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
//    LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
//    OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
//    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//  ************************************************************************/
#endregion
using Moq;

using NUnit.Framework;

using PlexRequests.Services.Notification;

namespace PlexRequests.Services.Tests
{
    [TestFixture]
    public class NotificationServiceTests
    {

        [Test]
        public void SubscribeNewNotifier()
        {
            var notificationMock = new Mock<INotification>();
            notificationMock.SetupGet(x => x.NotificationName).Returns("Notification1");
            NotificationService.Subscribe(notificationMock.Object);

            Assert.That(NotificationService.Observers["Notification1"], Is.Not.Null);
            Assert.That(NotificationService.Observers.Count, Is.EqualTo(1));
        }

        [Test]
        public void SubscribeExistingNotifier()
        {
            var notificationMock1 = new Mock<INotification>();
            var notificationMock2 = new Mock<INotification>();
            notificationMock1.SetupGet(x => x.NotificationName).Returns("Notification1");
            notificationMock2.SetupGet(x => x.NotificationName).Returns("Notification1");
            NotificationService.Subscribe(notificationMock1.Object);

            Assert.That(NotificationService.Observers["Notification1"], Is.Not.Null);
            Assert.That(NotificationService.Observers.Count, Is.EqualTo(1));

            NotificationService.Subscribe(notificationMock2.Object);

            Assert.That(NotificationService.Observers["Notification1"], Is.Not.Null);
            Assert.That(NotificationService.Observers.Count, Is.EqualTo(1));
        }

        [Test]
        public void UnSubscribeMissingNotifier()
        {
            var notificationMock = new Mock<INotification>();
            notificationMock.SetupGet(x => x.NotificationName).Returns("Notification1");
            NotificationService.UnSubscribe(notificationMock.Object);

            Assert.That(NotificationService.Observers.Count, Is.EqualTo(0));
        }

        [Test]
        public void UnSubscribeNotifier()
        {
            var notificationMock = new Mock<INotification>();
            notificationMock.SetupGet(x => x.NotificationName).Returns("Notification1");
            NotificationService.Subscribe(notificationMock.Object);
            Assert.That(NotificationService.Observers.Count, Is.EqualTo(1));

            NotificationService.UnSubscribe(notificationMock.Object);
            Assert.That(NotificationService.Observers.Count, Is.EqualTo(0));
        }

        [Test]
        public void PublishWithNoObservers()
        {
            Assert.DoesNotThrow(
                () =>
                { NotificationService.Publish(string.Empty, string.Empty); });
        }

        [Test]
        public void PublishAllNotifiers()
        {
            var notificationMock1 = new Mock<INotification>();
            var notificationMock2 = new Mock<INotification>();
            notificationMock1.SetupGet(x => x.NotificationName).Returns("Notification1");
            notificationMock2.SetupGet(x => x.NotificationName).Returns("Notification2");
            NotificationService.Subscribe(notificationMock1.Object);
            NotificationService.Subscribe(notificationMock2.Object);

            Assert.That(NotificationService.Observers.Count, Is.EqualTo(2));

            NotificationService.Publish("a","b");

            notificationMock1.Verify(x => x.Notify("a","b"), Times.Once);
            notificationMock2.Verify(x => x.Notify("a","b"), Times.Once);
        }
    }
}