const cursor = coll.find({});
      this.defer(() => cursor.close());

      cursor.toArray((err, docs) => {
        expect(err).to.not.exist;
        expect(docs).to.have.length(6);
        expect(cursor).property('closed').to.be.true;

        const clonedCursor = cursor.clone();
        this.defer(() => clonedCursor.close());

        clonedCursor.toArray((err, docs) => {
          expect(err).to.not.exist;
          expect(docs).to.have.length(6);
          expect(clonedCursor).property('closed').to.be.true;
          done();
        });
      });