in packages/babel-preset-fbjs/plugins/rewrite-modules.js [93:110]
function transformJestHelper(path, state) {
var calleePath = path.get('callee');
var args = path.get('arguments');
if (!args.length) {
return;
}
var moduleArg = args[0];
if (
moduleArg.node.type === 'StringLiteral' &&
calleePath.node &&
isJestProperty(t, calleePath.node.property)
) {
var module = mapModule(state, moduleArg.node.value);
if (module) {
moduleArg.replaceWith(t.stringLiteral(module));
}
}
}