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

            //Act
            graphDrawer.ZoomIn();

            //Assert
            Assert.AreEqual(graphDrawer.GetScale(), 55);
        }
        public void TestScaleResetting()
        {
            //Arrange
            GraphDrawer graphDrawer = new GraphDrawer();

            //Act
            graphDrawer.ZoomIn();
            graphDrawer.ResetScale();

            //Assert
            Assert.AreEqual(graphDrawer.GetScale(), 50);
        }