vitest-webgl-canvas-mock/src/classes/CanvasPattern.js

Mock both 2D and WebGL contexts in Vitest.

import { vi } from "vitest";

export default class CanvasPattern {
  constructor() {
    this.setTransform = vi.fn(this.setTransform.bind(this));
  }

  setTransform(value) {
    if (arguments.length > 0 && !(value instanceof Object)) throw new TypeError('Failed to execute \'setTransform\' on \'CanvasPattern\': parameter 1 (\'transform\') is not an object.');
  }
}