Depends too much on the test runner/mocha

[olpeh]

As an example, this does not work:

const visualRegression = require('visual-regression');

const viewportConfigs = [
  {
    width: 800,
    height: 600
  },
  {
    width: 1024,
    height: 768
  }
];

const run = () => {
  const options = {
    baseUrl: 'https://olpe.fi',
    testPaths: ['/', '/contact/'],
    viewportConfigs,
    baseScreenshotDirPath: 'visual-regression-screenshots',
    goldenScreenshotDirName: 'golden',
    testScreenshotDirName: 'test'
  };
  visualRegression.testVisualRegressions(options);
};

run();

and then calling node test.js fails with:

ReferenceError: describe is not defined