New: Improve logging when checking if release is an upgrade

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

src/NzbDrone.Core.Test/DecisionEngineTests/QualityUpgradeSpecificationFixture.cs

@@ -57,5 +57,21 @@ namespace NzbDrone.Core.Test.DecisionEngineTests
             Subject.IsUpgradable(profile, new QualityModel(Quality.DVD, new Revision(version: 2)), new QualityModel(Quality.DVD, new Revision(version: 1)))
                     .Should().BeFalse();
         }
+
+
+        [Test]
+        public void should_return_false_if_release_and_existing_file_are_the_same()
+        {
+            var profile = new Profile
+            {
+                Items = Qualities.QualityFixture.GetDefaultQualities(),
+            };
+
+            Subject.IsUpgradable(
+                       profile,
+                       new QualityModel(Quality.HDTV720p, new Revision(version: 1)),
+                       new QualityModel(Quality.HDTV720p, new Revision(version: 1)))
+                   .Should().BeFalse();
+        }
     }
 }

src/NzbDrone.Core/DecisionEngine/Specifications/UpgradableSpecification.cs

@@ -36,10 +36,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications
 
                 if (IsRevisionUpgrade(currentQuality, newQuality))
                 {
+                    _logger.Debug("New item has a better quality revision");
                     return true;
                 }
             }
 
+            _logger.Debug("New item has a better quality");
             return true;
         }