Fixed: Check if NzbGet KeepHistory value is set too high

src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbgetTests/NzbgetFixture.cs

@@ -19,6 +19,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
         private NzbgetQueueItem _queued;
         private NzbgetHistoryItem _failed;
         private NzbgetHistoryItem _completed;
+        private Dictionary<string, string> _configItems;
 
         [SetUp]
         public void Setup()
@@ -80,13 +81,17 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
                     DownloadRate = 7000000
                 });
 
-            var configItems = new Dictionary<string, string>();
-            configItems.Add("Category1.Name", "music");
-            configItems.Add("Category1.DestDir", @"/remote/mount/music");
+            Mocker.GetMock<INzbgetProxy>()
+                .Setup(v => v.GetVersion(It.IsAny<NzbgetSettings>()))
+                .Returns("14.0");
+
+            _configItems = new Dictionary<string, string>();
+            _configItems.Add("Category1.Name", "music");
+            _configItems.Add("Category1.DestDir", @"/remote/mount/music");
 
             Mocker.GetMock<INzbgetProxy>()
                 .Setup(v => v.GetConfig(It.IsAny<NzbgetSettings>()))
-                .Returns(configItems);
+                .Returns(_configItems);
         }
 
         protected void GivenFailedDownload()
@@ -414,5 +419,18 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
 
             error.IsValid.Should().Be(expected);
         }
+
+        [TestCase("0", false)]
+        [TestCase("1", true)]
+        [TestCase(" 7", false)]
+        [TestCase("5000000", false)]
+        public void should_test_keephistory(string keephistory, bool expected)
+        {
+            _configItems["KeepHistory"] = keephistory;
+
+            var error = Subject.Test();
+
+            error.IsValid.Should().Be(expected);
+        }
     }
 }

src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs

@@ -1,7 +1,8 @@
 using System;
+using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
-using System.Collections.Generic;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Disk;
@@ -9,8 +10,8 @@ using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Parser.Model;
-using NzbDrone.Core.Validation;
 using NzbDrone.Core.RemotePathMappings;
+using NzbDrone.Core.Validation;
 
 namespace NzbDrone.Core.Download.Clients.Nzbget
 {
@@ -296,8 +297,9 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
         {
             var config = _proxy.GetConfig(Settings);
 
-            var keepHistory = config.GetValueOrDefault("KeepHistory");
-            if (keepHistory == "0")
+            var keepHistory = config.GetValueOrDefault("KeepHistory", "7");
+            int value;
+            if (!int.TryParse(keepHistory, NumberStyles.None, CultureInfo.InvariantCulture, out value) || value == 0)
             {
                 return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be greater than 0")
                 {
@@ -305,6 +307,14 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
                     DetailedDescription = "NzbGet setting KeepHistory is set to 0. Which prevents Lidarr from seeing completed downloads."
                 };
             }
+            else if (value > 25000)
+            {
+                return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be less than 25000")
+                {
+                    InfoLink = string.Format("http://{0}:{1}/", Settings.Host, Settings.Port),
+                    DetailedDescription = "NzbGet setting KeepHistory is set too high."
+                };
+            }
 
             return null;
         }