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|
# frozen_string_literal: true
module DDMetrics
class Stopwatch
class AlreadyRunningError < StandardError
def message
'Cannot start, because stopwatch is already running'
end
end
class NotRunningError < StandardError
def message
'Cannot stop, because stopwatch is not running'
end
end
class StillRunningError < StandardError
def message
'Cannot get duration, because stopwatch is still running'
end
end
def initialize
@duration = 0.0
@last_start = nil
end
def start
raise AlreadyRunningError if running?
@last_start = Time.now
end
def stop
raise NotRunningError unless running?
@duration += (Time.now - @last_start)
@last_start = nil
end
def duration
raise StillRunningError if running?
@duration
end
def running?
!@last_start.nil?
end
def stopped?
!running?
end
end
end
|
