From ba4193cc463dcab0f8fbb82824f7994534fbb969 Mon Sep 17 00:00:00 2001
From: Mark McDowall <markus.mcd5@gmail.com>
Date: Fri, 4 Oct 2013 21:49:54 -0700
Subject: [PATCH] CommandComparer supports IEnumerables now

---
 .../Commands/CommandEqualityComparerFixture.cs    | 11 ++++++-----
 .../Messaging/Commands/CommandEqualityComparer.cs | 15 ++++++++++++++-
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/src/NzbDrone.Core.Test/Messaging/Commands/CommandEqualityComparerFixture.cs b/src/NzbDrone.Core.Test/Messaging/Commands/CommandEqualityComparerFixture.cs
index 34d4b1d30..24193ac48 100644
--- a/src/NzbDrone.Core.Test/Messaging/Commands/CommandEqualityComparerFixture.cs
+++ b/src/NzbDrone.Core.Test/Messaging/Commands/CommandEqualityComparerFixture.cs
@@ -1,4 +1,5 @@
-using FluentAssertions;
+using System.Collections.Generic;
+using FluentAssertions;
 using NUnit.Framework;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.IndexerSearch;
@@ -24,8 +25,8 @@ public void should_return_true_when_there_are_no_properties()
         [Test]
         public void should_return_true_when_single_property_matches()
         {
-            var command1 = new EpisodeSearchCommand { EpisodeId = 1 };
-            var command2 = new EpisodeSearchCommand { EpisodeId = 1 };
+            var command1 = new EpisodeSearchCommand { EpisodeIds = new List<int>{ 1 } };
+            var command2 = new EpisodeSearchCommand { EpisodeIds = new List<int> { 1 } };
 
             CommandEqualityComparer.Instance.Equals(command1, command2).Should().BeTrue();
         }
@@ -42,8 +43,8 @@ public void should_return_true_when_multiple_properties_match()
         [Test]
         public void should_return_false_when_single_property_doesnt_match()
         {
-            var command1 = new EpisodeSearchCommand { EpisodeId = 1 };
-            var command2 = new EpisodeSearchCommand { EpisodeId = 2 };
+            var command1 = new EpisodeSearchCommand { EpisodeIds = new List<int> { 1 } };
+            var command2 = new EpisodeSearchCommand { EpisodeIds = new List<int> { 2 } };
 
             CommandEqualityComparer.Instance.Equals(command1, command2).Should().BeFalse();
         }
diff --git a/src/NzbDrone.Core/Messaging/Commands/CommandEqualityComparer.cs b/src/NzbDrone.Core/Messaging/Commands/CommandEqualityComparer.cs
index 38017fe4e..5f6ef67be 100644
--- a/src/NzbDrone.Core/Messaging/Commands/CommandEqualityComparer.cs
+++ b/src/NzbDrone.Core/Messaging/Commands/CommandEqualityComparer.cs
@@ -1,3 +1,5 @@
+using System;
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
 
@@ -46,7 +48,18 @@ public bool Equals(Command x, Command y)
                     return false;
                 }
 
-                if (!xValue.Equals(yValue))
+                if (typeof(IEnumerable).IsAssignableFrom(xProperty.PropertyType))
+                {
+                    var xValueCollection = ((IEnumerable)xValue).Cast<object>().OrderBy(t => t);
+                    var yValueCollection = ((IEnumerable)yValue).Cast<object>().OrderBy(t => t);
+
+                    if (!xValueCollection.SequenceEqual(yValueCollection))
+                    {
+                        return false;
+                    }
+                }
+
+                else if (!xValue.Equals(yValue))
                 {
                     return false;
                 }