gistfile1.txt

      // How it should be written
      remote.bulkDocs({docs: docs});
      db.replicate.from(remote);
      var docs = db.allDocs();
      res.total_rows.should.equal(num);

      // No error handling
      remote.bulkDocs({ docs: docs }, function (err, info) {
        db.replicate.from(remote, {}, function () {
          db.allDocs(function (err, res) {
            res.total_rows.should.equal(num);
            done();
          });
        });
      });

      // check every err
      remote.bulkDocs({ docs: docs }, function (err, info) {
        if (err) return done(err);
        db.replicate.from(remote, {}, function (err) {
          if (err) return done(err);
          db.allDocs(function (err, res) {
            if (err) return done(err);
            res.total_rows.should.equal(num);
            done();
          });
        });
      });

      // bind every callback
      remote.bulkDocs({ docs: docs }, bindSuccess(done, function (err, info) {
        db.replicate.from(remote, {}, bindSuccess(function (err) {
          db.allDocs(bindSuccess(function (err, res) {
            if (err) return done(err);
            res.total_rows.should.equal(num);
            done();
          }));
        }));
      }));
  
      // promises    
      remote.bulkDocs({docs: docs}).then(function() {
        return db.replication.from(remote);
      }).then(function() { 
        return db.allDocs();
      }).then(function(res) { 
        res.total_rows.should.equal(num);
        done();
      }).catch(done);

function iter(gen) {
  var it = gen();
  (function next(res) {
    var f = it.next(res);
    f.call(null, function(err, res) {
      if (err) return done(err);
      next(res);
    });
  })(null);
}

it('should be sweet', iter(function* () {
  yield remote.bulkDocs.bind(remote, {docs: docs});
  yield db.replicate.from.bind(db, remote);
  var res = yield db.allDocs.bind(db);
  res.total_rows.should.equal(2);
}));