Add serialize test

tests/Jellyfin.Common.Tests/Json/JsonOmdbConverterTests.cs

@@ -64,5 +64,25 @@ namespace Jellyfin.Common.Tests.Json
             var result = JsonSerializer.Deserialize<string>(Input, _options);
             Assert.Equal(Expected, result);
         }
+
+        [Fact]
+        public void Roundtrip_Valid_Success()
+        {
+            const string Input = "{\"Title\":\"Chapter 1\",\"Year\":\"2013\",\"Rated\":\"TV-MA\",\"Released\":\"01 Feb 2013\",\"Season\":\"N/A\",\"Episode\":\"N/A\",\"Runtime\":\"55 min\",\"Genre\":\"Drama\",\"Director\":\"David Fincher\",\"Writer\":\"Michael Dobbs (based on the novels by), Andrew Davies (based on the mini-series by), Beau Willimon (created for television by), Beau Willimon, Sam Forman (staff writer)\",\"Actors\":\"Kevin Spacey, Robin Wright, Kate Mara, Corey Stoll\",\"Plot\":\"Congressman Francis Underwood has been declined the chair for Secretary of State. He's now gathering his own team to plot his revenge. Zoe Barnes, a reporter for the Washington Herald, will do anything to get her big break.\",\"Language\":\"English\",\"Country\":\"USA\",\"Awards\":\"N/A\",\"Poster\":\"https://m.media-amazon.com/images/M/MV5BMTY5MTU4NDQzNV5BMl5BanBnXkFtZTgwMzk2ODcxMzE@._V1_SX300.jpg\",\"Ratings\":[{\"Source\":\"Internet Movie Database\",\"Value\":\"8.7/10\"}],\"Metascore\":\"N/A\",\"imdbRating\":\"8.7\",\"imdbVotes\":\"6736\",\"imdbID\":\"tt2161930\",\"seriesID\":\"N/A\",\"Type\":\"episode\",\"Response\":\"True\"}";
+            var trip1 = JsonSerializer.Deserialize<OmdbProvider.RootObject>(Input, _options);
+            Assert.NotNull(trip1);
+            Assert.NotNull(trip1?.Title);
+            Assert.Null(trip1?.Awards);
+            Assert.Null(trip1?.Episode);
+            Assert.Null(trip1?.Metascore);
+
+            var serializedTrip1 = JsonSerializer.Serialize(trip1!, _options);
+            var trip2 = JsonSerializer.Deserialize<OmdbProvider.RootObject>(serializedTrip1, _options);
+            Assert.NotNull(trip2);
+            Assert.NotNull(trip2?.Title);
+            Assert.Null(trip2?.Awards);
+            Assert.Null(trip2?.Episode);
+            Assert.Null(trip2?.Metascore);
+        }
     }
 }