public async Task Serialize_SingleResourceDocument_for_primary_data_and_metadata()
        {
            var mockResourceObjectFormatter = new Mock<IResourceObjectFormatter>(MockBehavior.Strict);
            mockResourceObjectFormatter.Setup(m => m.Serialize(It.IsAny<IResourceObject>(), It.IsAny<JsonWriter>()))
                .Returns((IResourceObject resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Placeholder resource object");
                    return Task.FromResult(0);
                }).Verifiable();

            var mockMetadataFormatter = new Mock<IMetadataFormatter>(MockBehavior.Strict);
            mockMetadataFormatter.Setup(m => m.Serialize(It.IsAny<IMetadata>(), It.IsAny<JsonWriter>()))
                .Returns((IMetadata resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Placeholder metadata object");
                    return Task.FromResult(0);
                }).Verifiable();

            var mockResource = new Mock<IResourceObject>(MockBehavior.Strict);
            var mockMetadata = new Mock<IMetadata>(MockBehavior.Strict);
            ISingleResourceDocument document = new SingleResourceDocument(mockResource.Object, null, mockMetadata.Object);

            var formatter = new SingleResourceDocumentFormatter(mockResourceObjectFormatter.Object, mockMetadataFormatter.Object);
            await AssertSerializeOutput(formatter, document, "Json/Fixtures/SingleResourceDocumentFormatter/Serialize_SingleResourceDocument_for_primary_data_and_metadata.json");
            mockResourceObjectFormatter.Verify(s => s.Serialize(mockResource.Object, It.IsAny<JsonWriter>()), Times.Once);
            mockMetadataFormatter.Verify(s => s.Serialize(mockMetadata.Object, It.IsAny<JsonWriter>()), Times.Once);
        }
        public async Task Serialize_SingleResourceDocument_for_all_possible_members()
        {
            var mockPrimaryData = new Mock<IResourceObject>(MockBehavior.Strict);
            var relatedResource1 = new Mock<IResourceObject>(MockBehavior.Strict);
            var relatedResource2 = new Mock<IResourceObject>(MockBehavior.Strict);
            var relatedResource3 = new Mock<IResourceObject>(MockBehavior.Strict);

            var mockResourceObjectFormatter = new Mock<IResourceObjectFormatter>(MockBehavior.Strict);
            mockResourceObjectFormatter.Setup(m => m.Serialize(mockPrimaryData.Object, It.IsAny<JsonWriter>()))
                .Returns((IResourceObject resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Primary data object");
                    return Task.FromResult(0);
                }).Verifiable();
            mockResourceObjectFormatter.Setup(m => m.Serialize(relatedResource1.Object, It.IsAny<JsonWriter>()))
                .Returns((IResourceObject resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Related data object 1");
                    return Task.FromResult(0);
                }).Verifiable();
            mockResourceObjectFormatter.Setup(m => m.Serialize(relatedResource2.Object, It.IsAny<JsonWriter>()))
                .Returns((IResourceObject resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Related data object 2");
                    return Task.FromResult(0);
                }).Verifiable();
            mockResourceObjectFormatter.Setup(m => m.Serialize(relatedResource3.Object, It.IsAny<JsonWriter>()))
                .Returns((IResourceObject resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Related data object 3");
                    return Task.FromResult(0);
                }).Verifiable();

            var mockMetadataFormatter = new Mock<IMetadataFormatter>(MockBehavior.Strict);
            mockMetadataFormatter.Setup(m => m.Serialize(It.IsAny<IMetadata>(), It.IsAny<JsonWriter>()))
                .Returns((IMetadata resourceObject, JsonWriter writer) =>
                {
                    writer.WriteValue("Placeholder metadata object");
                    return Task.FromResult(0);
                }).Verifiable();

            var mockMetadata = new Mock<IMetadata>(MockBehavior.Strict);
            var relatedResources = new[] { relatedResource1.Object, relatedResource2.Object, relatedResource3.Object };
            ISingleResourceDocument document = new SingleResourceDocument(mockPrimaryData.Object, relatedResources, mockMetadata.Object);

            var formatter = new SingleResourceDocumentFormatter(mockResourceObjectFormatter.Object, mockMetadataFormatter.Object);
            await AssertSerializeOutput(formatter, document, "Json/Fixtures/SingleResourceDocumentFormatter/Serialize_SingleResourceDocument_for_all_possible_members.json");
            mockResourceObjectFormatter.Verify(s => s.Serialize(mockPrimaryData.Object, It.IsAny<JsonWriter>()), Times.Once);
            mockResourceObjectFormatter.Verify(s => s.Serialize(relatedResource1.Object, It.IsAny<JsonWriter>()), Times.Once);
            mockResourceObjectFormatter.Verify(s => s.Serialize(relatedResource2.Object, It.IsAny<JsonWriter>()), Times.Once);
            mockResourceObjectFormatter.Verify(s => s.Serialize(relatedResource3.Object, It.IsAny<JsonWriter>()), Times.Once);
            mockMetadataFormatter.Verify(s => s.Serialize(mockMetadata.Object, It.IsAny<JsonWriter>()), Times.Once);
        }