public void ToolStripRenderer_DrawArrow_Invoke_CallsRenderArrow(ToolStripItem toolStripItem, Rectangle arrowRectangle, Color arrowColor, ArrowDirection arrowDirection)
{
using var image = new Bitmap(10, 10);
using Graphics graphics = Graphics.FromImage(image);
var eventArgs = new ToolStripArrowRenderEventArgs(graphics, toolStripItem, arrowRectangle, arrowColor, arrowDirection);
var renderer = new SubToolStripRenderer();
int callCount = 0;
ToolStripArrowRenderEventHandler handler = (sender, e) =>
{
Assert.Same(renderer, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
renderer.RenderArrow += handler;
renderer.DrawArrow(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
renderer.RenderArrow -= handler;
renderer.DrawArrow(eventArgs);
Assert.Equal(1, callCount);
}
public void ToolStripRenderer_DrawArrow_NullE_ThrowsArgumentNullException()
{
var renderer = new SubToolStripRenderer();
Assert.Throws <ArgumentNullException>("e", () => renderer.DrawArrow(null));
}