text: import test from 'ava';
  import { spy } from 'sinon';
  import { addScalarValidator, validateScalar } from '../index.js';
  
  test('It should allow the adding of custom scalar validators;', t => {
      const exampleValidator = spy();
      addScalarValidator('Example', exampleValidator);
      validateScalar(() => {}, 'Example(String)', 'Adam', {});
      t.is(exampleValidator.callCount, 1);
  });
  