public void GetAxis()
{
var plot = new PlotModel {
Title = "Get Axis Or Default"
};
var verticalAxis = new LinearAxis {
Key = "YAxis", Position = AxisPosition.Left
};
var horizontalAxis = new LinearAxis {
Key = "XAxis", Position = AxisPosition.Bottom
};
plot.Axes.Add(verticalAxis);
plot.Axes.Add(horizontalAxis);
Assert.That(() => plot.GetAxis("ThisIsAnInvalidKey"), Throws.InvalidOperationException);
}