./testfor splash_potion,name=test doesn' work

If I do ,/testfor @e[type=splash_potion] the commandblock reads when I throw a splash_potion but if I do ,/testfor @e[type=splash_potion,name=test] the command block doesn't read when I throw it and no Syntax error is showed . What I want to do is to make that the command blocks read every splash potion individual by adding them a name . Thanks !