1. A method for testing a property of a sequence of at least k n-state symbols with n an integer greater than 1 and k an integer greater than 2, an n-state symbol being represented by a signal, comprising: a processor generating n-state symbols in the sequence by a sequence generator that is defined by an n-state feedback shift register of p n-state shift register elements and at least one n-state switching function, wherein each generated n-state symbol corresponds with a content of the shift register of p n-state symbols and p is an integer greater than 1; and the processor comparing the shift register content of p n-state symbols with a previous content of the shift register of p n-state symbols corresponding with generating a previous n-state symbol in the sequence of n-state symbols to decide to generate the next symbol in the sequence of n-state symbols.