public ChartCategoryAxisSerializerTests()
        {
            axisMock = new Mock<IChartCategoryAxis>();
            serializer = new ChartCategoryAxisSerializer(axisMock.Object);

            axisMock.SetupGet(a => a.MajorGridLines).Returns(new ChartLine());
            axisMock.SetupGet(a => a.MinorGridLines).Returns(new ChartLine());
            axisMock.SetupGet(a => a.Line).Returns(new ChartLine());
            axisMock.SetupGet(a => a.Labels).Returns(new ChartAxisLabels());
        }
        public ChartCategoryAxisSerializerTests()
        {
            axisMock   = new Mock <IChartCategoryAxis>();
            serializer = new ChartCategoryAxisSerializer(axisMock.Object);

            axisMock.SetupGet(a => a.MajorGridLines).Returns(new ChartLine());
            axisMock.SetupGet(a => a.MinorGridLines).Returns(new ChartLine());
            axisMock.SetupGet(a => a.Line).Returns(new ChartLine());
            axisMock.SetupGet(a => a.Labels).Returns(new ChartAxisLabels());
        }