Fixed root folder integration test

src/NzbDrone.Api/Config/DownloadClientConfigModule.cs

@@ -9,8 +9,10 @@ namespace NzbDrone.Api.Config
     {
         public DownloadClientConfigModule(IConfigService configService, RootFolderValidator rootFolderValidator, PathExistsValidator pathExistsValidator)
             : base(configService)
-        {           
+        {
             SharedValidator.RuleFor(c => c.DownloadedEpisodesFolder)
+                           .Cascade(CascadeMode.StopOnFirstFailure)
+                           .IsValidPath()
                            .SetValidator(rootFolderValidator)
                            .SetValidator(pathExistsValidator)
                            .When(c => !String.IsNullOrWhiteSpace(c.DownloadedEpisodesFolder));

src/NzbDrone.Api/RootFolders/RootFolderModule.cs

@@ -27,7 +27,9 @@ namespace NzbDrone.Api.RootFolders
             CreateResource = CreateRootFolder;
             DeleteResource = DeleteFolder;
 
-            SharedValidator.RuleFor(c => c.Path).IsValidPath()
+            SharedValidator.RuleFor(c => c.Path)
+                           .Cascade(CascadeMode.StopOnFirstFailure)
+                           .IsValidPath()
                            .SetValidator(rootFolderValidator)
                            .SetValidator(pathExistsValidator)
                            .SetValidator(droneFactoryValidator);