public void TestMaclaurinSeriesSwitch()
        {
            //Arrange
            GraphDrawer graphDrawer = new GraphDrawer();

            //Act
            graphDrawer.HideMaclaurinSeries();
            graphDrawer.ShowMaclaurinSeries();

            //Assert
            Assert.AreEqual(graphDrawer.IsShowFunctionMaclaurinSeries, true);
        }