text: describeAscoltatore("JSON", function() {
  
    it("should transfer nulls as false", function(done) {
      var that = this;
      this.instance.subscribe("/hello", function(topic, payload) {
        expect(payload).to.be.eql(false);
        done();
      }, function() {
        that.instance.publish("/hello", null);
      });
    });
  
    it("should transfer undefined as false", function(done) {
      var that = this;
      this.instance.subscribe("/hello", function(topic, payload) {
        expect(payload).to.be.eql(false);
        done();
      }, function() {
        that.instance.publish("/hello", undefined);
      });
    });
  
    it("should transfer numbers", function(done) {
      var that = this;
      this.instance.subscribe("/hello", function(topic, payload) {
        expect(payload).to.be.eql(42);
        done();
      }, function() {
        that.instance.publish("/hello", 42);
      });
    });
  
    it("should publish messages on the parent encoding them as JSON", function(done) {
      var that = this;
      this.wrapped.subscribe("/hello", function(topic, payload) {
        expect(payload).to.be.equal('{"key":"world"}');
        done();
      }, function() {
        that.instance.publish("/hello", {
          key: "world"
        });
      });
    });
  
    it("should publish correctly a false", function(done) {
      var that = this;
      that.instance.sub("hello/*", function(topic, value) {
        expect(value).to.be.eql(false);
        done();
      }, function() {
        that.instance.pub("hello/123", false);
      });
    });
  
    it("should not throw if a bad JSON arrives", function(done) {
      var that = this;
      this.instance.subscribe("/hello", function(topic, payload) {
        done(new Error("this should never happen"));
      }, function() {
        that.wrapped.publish("/hello", "not a json", function() {
          done();
        });
      });
    });
  });
  