A method of testing a component and a device for testing a component

There is described a method of testing a component, the component 24 comprising one or more fluid inlet holes and a plurality of outlet regions 208,210,212,214, each outlet region comprising one or more fluid outlet holes 206 fluidically coupled to the one or more fluid inlet holes, the method comprising: supplying (A3, fig 8) fluid to the one or more fluid inlet holes, wherein separate portions of the fluid supplied to the one or more fluid inlet holes exit respective outlet regions via their respective one or more fluid outlet holes 206; measuring a parameter relating to the amount of each of the portions of fluid exiting their respective outlet regions over a period of time; and estimating (A5) a flow rate of air exiting one or more of the plurality of outlet regions based on the measured parameters relating to the amounts of each of the portions of fluid exiting their respective outlet regions over the period of time. There is also described a device for testing a component 24, the device comprising a housing (44, fig 3) for receiving the component, the component comprising one or more fluid inlet holes and a plurality of outlet regions, each outlet region comprising one or more fluid outlet holes fluidically coupled to the one or more fluid inlet holes, the housing (44) defining a chamber for housing the component, wherein the housing cooperates with the component so as to define a plurality of fluid passageways, each of the fluid passageways being configured to receive fluid exiting from the plurality of fluid outlet holes of a respective outlet region 208,210,212,214.