jsdoc/test/specs/documentation/callback.js

describe('callback tag', () => {
    const docSet = jsdoc.getDocSetFromFile('test/fixtures/callbacktag.js');

    function callbackTests(callback) {
        expect(callback).toBeDefined();

        expect(callback.type).toBeDefined();
        expect(typeof callback.type).toEqual('object');

        expect(callback.type.names).toBeDefined();
        expect(callback.type.names instanceof Array).toEqual(true);
        expect(callback.type.names.length).toEqual(1);

        expect(callback.type.names[0]).toEqual('function');
    }

    it('correctly handles callbacks that do not define a {type}', () => {
        const callback = docSet.getByLongname('requestResponseCallback')[0];

        callbackTests(callback);
    });

    it('correctly handles callbacks that define an incorrect {type}', () => {
        const callback = docSet.getByLongname('wrongTypeCallback')[0];

        callbackTests(callback);
    });
});