How to use Robot.js in C# automation?

@davem wrote:

I’m trying to understand how to use the robot.js file while writing my UI automation tests in C#. I don’t have any experience in using javascript, so I’m not sure if what I am doing is correct or if I’m way off. For example, I’m not sure if I am declaring my canvas correctly. I’ve searched through the forums and haven’t found anything related or useful.

All I would like to do is click a node on a canvas during a UI automated test as a proof of concept that it works, I’m using the robot.html page as a hypothetical scenario (on either canvas). Any help, suggestions, or ideas would be appreciated in understanding how to do this from a C# test would be appreciated.
https://gojs.net/latest/extensions/Robot.html

Here is my C# method that is calling the mouse click javascript:

    public void ClickCanvasItem(int x, int y)
    {
        // Set File Name for JS Action
        string fileName = "Mouse_Click.js";

        // Read file into a String
        string script = File.ReadAllText(fileName);

        // Create JavaScript Executor, and Execute the Script, passinging in X and Y Coordinates
        IJavaScriptExecutor js = (IJavaScriptExecutor)this.testObject.WebDriver;
        js.ExecuteScript(script, x, y); 
    }

And here is the javascript file that I’ve setup based upon the robot.js file:

diagram = $(go.Diagram, “myPaletteDiv”, // create a Diagram for the DIV HTML element
{
});

/**

• Transfer property settings from a JavaScript Object to an InputEvent.
• @param {InputEvent} e
• @param {Object} props
  */
  function initializeEvent(e, props) {
  if (!props) return;
  for (var p in props) {
  if (p !== “sourceDiagram”) e[p] = props[p];
  }
  };

/**

• Simulate a mouse down event.

• @param {number} x the X-coordinate of the mouse point in document coordinates.

• @param {number} y the Y-coordinate of the mouse point in document coordinates.

• @param {number=} time the timestamp of the simulated event, in milliseconds; default zero

• @param {object=} eventprops an optional argument providing properties for the InputEvent.
  */
  function MouseDown(x, y, time, eventprops) {
  if (typeof x !== “number” || typeof y !== “number”) throw new Error(“MouseDown first two args must be X,Y numbers”);
  if (time === undefined) time = 0;

  var diagram = this.diagram;
  if (eventprops && eventprops.sourceDiagram) diagram = eventprops.sourceDiagram;
  if (!diagram.isEnabled) return;

  var n = new go.InputEvent();
  n.diagram = diagram;
  n.documentPoint = new go.Point(x, y);
  n.viewPoint = diagram.transformDocToView(n.documentPoint);
  n.timestamp = time;
  n.down = true;
  this.initializeEvent(n, eventprops);
  diagram.lastInput = n;
  diagram.firstInput = n.copy();
  diagram.currentTool.doMouseDown();
  };

/**

• Simulate a mouse up event.

• @param {number} x the X-coordinate of the mouse point in document coordinates.

• @param {number} y the Y-coordinate of the mouse point in document coordinates.

• @param {number=} time the timestamp of the simulated event, in milliseconds; default zero

• @param {object=} eventprops an optional argument providing properties for the InputEvent.
  */
  function MouseUp(x, y, time, eventprops) {
  if (typeof x !== “number” || typeof y !== “number”) throw new Error(“MouseUp first two args must be X,Y numbers”);
  if (time === undefined) time = 0;

  var diagram = this.diagram;
  if (eventprops && eventprops.sourceDiagram) diagram = eventprops.sourceDiagram;
  if (!diagram.isEnabled) return;

  var n = new go.InputEvent();
  n.diagram = diagram;
  n.documentPoint = new go.Point(x, y);
  n.viewPoint = diagram.transformDocToView(n.documentPoint);
  n.timestamp = time;
  n.up = true;
  if (diagram.firstInput.documentPoint.equals(n.documentPoint)) n.clickCount = 1; // at least??
  this.initializeEvent(n, eventprops);
  diagram.lastInput = n;
  if (diagram.simulatedMouseUp(null, n.sourceDiagram, n.documentPoint, n.targetDiagram)) return;
  diagram.currentTool.doMouseUp();
  };

// Call MouseDown, passing in X and Y coordinates
MouseDown(arguments[0], arguments[1], 0, {});

// Call MouseUp, passing in X and Y coordinates
MouseUp(arguments[0], arguments[1], 100, { });

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