src/language-js/utils.js/isUnitTestSetUp
function isUnitTestSetUp(node) {
  const unitTestSetUpRe = /^(before|after)(Each|All)$/;
  return (
    node.callee.type === "Identifier" &&
    unitTestSetUpRe.test(node.callee.name) &&
    node.arguments.length === 1
  );
}