diff --git a/src/NzbDrone.Core.Test/ImportListTests/IMDbListRequestGeneratorFixture.cs b/src/NzbDrone.Core.Test/ImportListTests/IMDbListRequestGeneratorFixture.cs
new file mode 100644
index 0000000000..6291b3f425
--- /dev/null
+++ b/src/NzbDrone.Core.Test/ImportListTests/IMDbListRequestGeneratorFixture.cs
@@ -0,0 +1,40 @@
+using System;
+using FluentAssertions;
+using NLog;
+using NUnit.Framework;
+using NzbDrone.Core.ImportLists.RadarrList2.IMDbList;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.ImportListTests
+{
+    [TestFixture]
+    public class IMDbListRequestGeneratorFixture : CoreTest<IMDbListRequestGenerator>
+    {
+        [SetUp]
+        public void Setup()
+        {
+            Subject.Logger = LogManager.GetCurrentClassLogger();
+        }
+
+        [Test]
+        public void should_throw_not_supported_exception_for_ls_format_list()
+        {
+            Subject.Settings = new IMDbListSettings { ListId = "ls123456789" };
+
+            Action act = () => Subject.GetMovies();
+
+            act.Should().Throw<NotSupportedException>()
+               .WithMessage("*ls12345678*no longer supported*");
+        }
+
+        [Test]
+        public void should_throw_not_supported_exception_case_insensitive()
+        {
+            Subject.Settings = new IMDbListSettings { ListId = "LS999999999" };
+
+            Action act = () => Subject.GetMovies();
+
+            act.Should().Throw<NotSupportedException>();
+        }
+    }
+}