InputFuzzer¶

Overview¶

For generating random mouse/touch input to a Display, to hopefully discover bugs in an automated fashion.

@author Jonathan Olson <jonathan.olson@colorado.edu>

Class InputFuzzer¶

import { InputFuzzer } from 'scenerystack/scenery';

Constructor¶

new InputFuzzer( display, seed )¶

Instance Methods¶

fuzzEvents( averageEventCount, allowMouse, allowTouch, maximumPointerCount )¶

Sends a certain (expected) number of random events through the input system for the display. @public

@param {number} averageEventCount @param {boolean} allowMouse @param {boolean} allowTouch @param {number} maximumPointerCount

createTouchEvent( type, touches )¶

Creates a touch event from multiple touch "items". @private

@param {string} type - The main event type, e.g. 'touchmove'. @param {Array.<Object>} touches - A subset of touch objects stored on the fuzzer itself. @returns {Event} - If possible a TouchEvent, but may be a CustomEvent

getRandomPosition()¶

Returns a random position somewhere in the display's global coordinates. @private

@returns {Vector2}

createTouch( position )¶

Creates a touch from a position (and adds it). @private

@param {Vector2} position @returns {Object}

removeTouch( touch )¶

Removes a touch from our list. @private

@param {Object} touch

touchStart( touch )¶

Triggers a touchStart for the given touch. @private

@param {Object} touch

touchMove( touch )¶

Triggers a touchMove for the given touch (to a random position in the display). @private

@param {Object} touch

touchEnd( touch )¶

Triggers a touchEnd for the given touch. @private

@param {Object} touch

touchCancel( touch )¶

Triggers a touchCancel for the given touch. @private

@param {Object} touch

mouseToggle()¶

Triggers a mouse toggle (switching from down => up or vice versa). @private

mouseMove()¶

Triggers a mouse move (to a random position in the display). @private

Source Code¶

See the source for InputFuzzer.js in the scenery repository.