             gaugeSerie.animationDurationUpdate = animationDurationUpdateValue
             gaugeSerie.animationEasingUpdate = animationEasingUpdateValue
             gaugeSerie.animationDelayUpdate = animationDelayUpdateValue
+            gaugeSerie.tooltip = tooltipValue
             
             it("needs to check the type value") {
                 expect(gaugeSerie.type).to(equal(SerieType.gauge))

            let animationDurationUpdateValue: Time = 0.0
            let animationEasingUpdateValue = EasingFunction.quarticInOut
            let animationDelayUpdateValue: Time = 100.0
            
            let gaugeSerie = GaugeSerie()
            gaugeSerie.name = nameValue

                    "animationDelay": animationDelayValue,
                    "animationDurationUpdate": animationDurationUpdateValue,
                    "animationEasingUpdate": animationEasingUpdateValue,
                    "animationDelayUpdate": animationDelayUpdateValue,
                    "tooltip": tooltipValue
                ]
                
                expect(gaugeSerie.jsonString).to(equal(resultDic.jsonString))
