From 86835dd3c6a67e78796eccff707d01af25dac008 Mon Sep 17 00:00:00 2001
From: Adam <nikilindsey527@gmail.com>
Date: Tue, 9 Jul 2024 16:09:15 -0400
Subject: [PATCH] Create PremiereDateComparerTests

Create PremiereDateComparerTests to test PremiereDateComparer functionality.
---
 .../Sorting/PremiereDateComparerTests.cs      | 45 +++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 tests/Jellyfin.Server.Implementations.Tests/Sorting/PremiereDateComparerTests.cs

diff --git a/tests/Jellyfin.Server.Implementations.Tests/Sorting/PremiereDateComparerTests.cs b/tests/Jellyfin.Server.Implementations.Tests/Sorting/PremiereDateComparerTests.cs
new file mode 100644
index 0000000000..153debdfc0
--- /dev/null
+++ b/tests/Jellyfin.Server.Implementations.Tests/Sorting/PremiereDateComparerTests.cs
@@ -0,0 +1,45 @@
+using System;
+using Emby.Server.Implementations.Sorting;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Movies;
+using Xunit;
+
+namespace Jellyfin.Server.Implementations.Tests.Sorting
+{
+    public class PremiereDateComparerTests
+    {
+        private readonly PremiereDateComparer _cmp = new PremiereDateComparer();
+
+        [Theory]
+        [ClassData(typeof(PremiereDateTestData))]
+        public void PremiereDateCompareTest(BaseItem x, BaseItem y, int expected)
+        {
+            Assert.Equal(expected, _cmp.Compare(x, y));
+            Assert.Equal(-expected, _cmp.Compare(y, x));
+        }
+
+        private sealed class PremiereDateTestData : TheoryData<BaseItem, BaseItem, int>
+        {
+            public PremiereDateTestData()
+            {
+                // Both have premier date
+                Add(
+                    new Movie { PremiereDate = new DateTime(2021, 1, 1) },
+                    new Movie { PremiereDate = new DateTime(2021, 1, 3) },
+                    0);
+
+                // Only x has premiere date
+                Add(
+                    new Movie { PremiereDate = new DateTime(2021, 1, 1) },
+                    new Movie { ProductionYear = 2022 },
+                    1);
+
+                // Only x has premiere date, with same year as y
+                Add(
+                    new Movie { PremiereDate = new DateTime(2021, 3, 1) },
+                    new Movie { ProductionYear = 2021 },
+                    2);
+            }
+        }
+    }
+}