Function installCanvasToBlob

src/hooks/useFrustumTexture.test.ts:241–253

()

}

function installCanvasToBlob(): () => void {
  const originalToBlob = Object.getOwnPropertyDescriptor(HTMLCanvasElement.prototype, 'toBlob');
  Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
    configurable: true,
    value: (callback: BlobCallback) => {
      callback(new Blob(['png'], { type: 'image/png' }));
    },
  });

  return () => {
    restoreProperty(HTMLCanvasElement.prototype, 'toBlob', originalToBlob);
  };
}

function installCanvasContext(): () => void {
  const originalGetContext = Object.getOwnPropertyDescriptor(HTMLCanvasElement.prototype, 'getContext');