Tick the clock time by 3 seconds:
When I advance timers by 3 seconds
Tick the clock time by 1 second:
When I advance timers by 1 second
A preceding step "When I use fake timers" is required. For example:
When I use fake timers
And I advance timers by 3 seconds
When I advance timers by seconds:
Moves the clock the specified number of
seconds
. Any timers within the affected range of time will be called.