controllerFunction.js

    async activity(ctx) {
      let activitySql = path.join(__dirname,`./../repositories/sql/activity.sql`);
      let activity = await repository(activitySql,'get_activity_by_id', ctx.params);

      ctx.status = 200;
      ctx.body = {
        status: ctx.status,
        success: true,
        data: activity
      };
      return ctx;
    }

testCode.js

describe('Container Test', function() {
  let mut;
  let repositoryStub;
  let activity;
  let ctx1;

  before(function () {
    // set up mock for repo
    repositoryStub = td.function('repository');
  });

  beforeEach(() => {
    ctx1 = {params: {id: 1}};
    activity = {
        id: 123,
        title: "hello"
    };
  });

  describe('#ACTIVITY CONTROLLER', () => {
    describe('ACTIVITY', function () {
      context('when calling activity get', function () {
        it('should call repo', async function () {
          let activitySql = path.join(__dirname,`./../../src/repositories/sql/activity.sql`);

          td.when(repositoryStub(activitySql, 'get_activity_by_id', ctx1.params)).thenReturn(activity);

          let result = await mut.activity(ctx1);
          console.log(`==========td.explain(repositoryStub)=========`);
          console.log(td.explain(repositoryStub));
          console.log(`==========END td.explain(repositoryStub)=========`);
          
          td.verify(repositoryStub);
        });
      });
    });