babel-preset-test-bundled-dependencies/node_modules/less/test/browser/runner-main-spec.js

Allow custom config for create-react-app without ejecting

console.warn("start spec");
describe("less.js main tests", function() {
    testLessEqualsInDocument();
    it("the global environment", function() {
        expect(window.require).toBe(undefined);
    });
});