New: Return error if invalid indexer or download client provided for pushed releases

src/NzbDrone.Core.Test/Indexers/IndexerFactory/ResolveIndexerFixture.cs

@@ -0,0 +1,81 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.Indexer
+{
+    [TestFixture]
+    public class ResolveIndexerFixture : CoreTest<IndexerFactory>
+    {
+        private List<IndexerDefinition> _indexers;
+
+        [SetUp]
+        public void SetUp()
+        {
+            _indexers = Builder<IndexerDefinition>.CreateListOfSize(3)
+                .Build()
+                .ToList();
+
+            Mocker.GetMock<IIndexerRepository>()
+                .Setup(v => v.All())
+                .Returns(_indexers);
+        }
+
+        [Test]
+        public void should_throw_if_indexer_with_id_cannot_be_found()
+        {
+            Assert.Throws<ResolveIndexerException>(() => Subject.ResolveIndexer(10, null));
+        }
+
+        [Test]
+        public void should_throw_if_indexer_with_name_cannot_be_found()
+        {
+            Assert.Throws<ResolveIndexerException>(() => Subject.ResolveIndexer(null, "Not a Real Client"));
+        }
+
+        [Test]
+        public void should_throw_if_indexer_with_id_does_not_match_indexer_with_name()
+        {
+            Assert.Throws<ResolveIndexerException>(() => Subject.ResolveIndexer(_indexers[0].Id, _indexers[1].Name));
+        }
+
+        [Test]
+        public void should_return_indexer_when_only_id_is_provided()
+        {
+            var result = Subject.ResolveIndexer(_indexers[0].Id, null);
+
+            result.Should().NotBeNull();
+            result.Should().Be(_indexers[0]);
+        }
+
+        [Test]
+        public void should_return_indexer_when_only_name_is_provided()
+        {
+            var result = Subject.ResolveIndexer(null, _indexers[0].Name);
+
+            result.Should().NotBeNull();
+            result.Should().Be(_indexers[0]);
+        }
+
+        [Test]
+        public void should_return_indexer_when_id_and_name_provided_for_the_same_indexer()
+        {
+            var result = Subject.ResolveIndexer(_indexers[0].Id, _indexers[0].Name);
+
+            result.Should().NotBeNull();
+            result.Should().Be(_indexers[0]);
+        }
+
+        [Test]
+        public void should_return_null_if_both_id_and_name_are_not_provided()
+        {
+            var result = Subject.ResolveIndexer(null, null);
+
+            result.Should().BeNull();
+        }
+    }
+}