Fixed: Parsing 4k UHD as 2160p

Closes #2127

src/NzbDrone.Core.Test/ParserTests/QualityParserFixture.cs

@@ -178,6 +178,8 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("The.Nightly.Show.2016.03.14.2160p.WEB.x264-spamTV", false)]
         [TestCase("The.Nightly.Show.2016.03.14.2160p.WEB.h264-spamTV", false)]
         [TestCase("The.Nightly.Show.2016.03.14.2160p.WEB.PROPER.h264-spamTV", true)]
+        [TestCase("House.of.Cards.US.s05e13.4K.UHD.WEB.DL", false)]
+        [TestCase("House.of.Cards.US.s05e13.UHD.4K.WEB.DL", false)]
         public void should_parse_webdl2160p_quality(string title, bool proper)
         {
             ParseAndVerifyQuality(title, Quality.WEBDL2160p, proper);
@@ -215,6 +217,13 @@ namespace NzbDrone.Core.Test.ParserTests
             ParseAndVerifyQuality(title, Quality.Bluray1080p, proper);
         }
 
+        [TestCase("House.of.Cards.US.s05e13.4K.UHD.Bluray", false)]
+        [TestCase("House.of.Cards.US.s05e13.UHD.4K.Bluray", false)]
+        public void should_parse_bluray2160p_quality(string title, bool proper)
+        {
+            ParseAndVerifyQuality(title, Quality.Bluray2160p, proper);
+        }
+
         [TestCase("POI S02E11 1080i HDTV DD5.1 MPEG2-TrollHD", false)]
         [TestCase("How I Met Your Mother S01E18 Nothing Good Happens After 2 A.M. 720p HDTV DD5.1 MPEG2-TrollHD", false)]
         [TestCase("The Voice S01E11 The Finals 1080i HDTV DD5.1 MPEG2-TrollHD", false)]

src/NzbDrone.Core/Parser/QualityParser.cs

@@ -40,7 +40,7 @@ namespace NzbDrone.Core.Parser
         private static readonly Regex RealRegex = new Regex(@"\b(?<real>REAL)\b",
                                                                 RegexOptions.Compiled);
 
-        private static readonly Regex ResolutionRegex = new Regex(@"\b(?:(?<R480p>480p|640x480|848x480)|(?<R576p>576p)|(?<R720p>720p|1280x720)|(?<R1080p>1080p|1920x1080)|(?<R2160p>2160p))\b",
+        private static readonly Regex ResolutionRegex = new Regex(@"\b(?:(?<R480p>480p|640x480|848x480)|(?<R576p>576p)|(?<R720p>720p|1280x720)|(?<R1080p>1080p|1920x1080)|(?<R2160p>2160p|4k[-_. ]UHD|UHD[-_. ]4k))\b",
                                                                 RegexOptions.Compiled | RegexOptions.IgnoreCase);
 
         private static readonly Regex CodecRegex = new Regex(@"\b(?:(?<x264>x264)|(?<h264>h264)|(?<xvidhd>XvidHD)|(?<xvid>Xvid)|(?<divx>divx))\b",