public void ODataEntityReferenceLinkSerializer_Serializes_Uri(object link)
        {
            // Arrange
            ODataEntityReferenceLinkSerializer serializer   = new ODataEntityReferenceLinkSerializer();
            ODataSerializerContext             writeContext = new ODataSerializerContext();
            MemoryStream          stream  = new MemoryStream();
            IODataResponseMessage message = new ODataMessageWrapper(stream);

            ODataMessageWriterSettings settings = new ODataMessageWriterSettings
            {
                ODataUri = new ODataUri {
                    ServiceRoot = new Uri("http://any/")
                }
            };

            settings.SetContentType(ODataFormat.Json);
            ODataMessageWriter writer = new ODataMessageWriter(message, settings);

            // Act
            serializer.WriteObject(link, typeof(ODataEntityReferenceLink), writer, writeContext);
            stream.Seek(0, SeekOrigin.Begin);
            string result = new StreamReader(stream).ReadToEnd();

            // Assert
            Assert.Equal("{\"@odata.context\":\"http://any/$metadata#$ref\",\"@odata.id\":\"http://sampleuri/\"}", result);
        }
        public void WriteObject_ThrowsArgumentNull_WriteContext()
        {
            // Arrange
            ODataEntityReferenceLinkSerializer serializer = new ODataEntityReferenceLinkSerializer();

            // Act & Assert
            ExceptionAssert.ThrowsArgumentNull(
                () => serializer.WriteObject(graph: null, type: typeof(ODataEntityReferenceLink),
                                             messageWriter: ODataTestUtil.GetMockODataMessageWriter(), writeContext: null),
                "writeContext");
        }
        public void WriteObject_Throws_ObjectCannotBeWritten_IfGraphIsNotUri()
        {
            // Arrange
            ODataEntityReferenceLinkSerializer serializer = new ODataEntityReferenceLinkSerializer();

            // Act & Assert
            ExceptionAssert.Throws <SerializationException>(
                () => serializer.WriteObject(graph: "not uri", type: typeof(ODataEntityReferenceLink),
                                             messageWriter: ODataTestUtil.GetMockODataMessageWriter(), writeContext: new ODataSerializerContext()),
                "ODataEntityReferenceLinkSerializer cannot write an object of type 'System.String'.");
        }
        public void WriteObject_ThrowsArgumentNull_MessageWriter()
        {
            // Arrange
            ODataEntityReferenceLinkSerializer serializer = new ODataEntityReferenceLinkSerializer();

            // Act & Assert
            ExceptionAssert.ThrowsArgumentNull(
                () => serializer.WriteObject(graph: null, type: typeof(ODataEntityReferenceLink), messageWriter: null,
                                             writeContext: new ODataSerializerContext()),
                "messageWriter");
        }