require "spec"
require "../src/frequency_loop"

describe FrequencyLoop do
  it "testes basic looping" do
    fl = FrequencyLoop.new(Time::Span.new(nanoseconds: 1_000))
    size = 5

    i = 0
    t0 = Time.utc
    fl.loop(max_tick: size) { i += 1 }
    t1 = Time.utc
    i.should eq(size)

    full_span = t1 - t0
    # puts "full_span=#{full_span}"
    # puts "10nano=#{Time::Span.new(nanoseconds: size * 1_000)}"
    # puts "sleep=#{fl.sleep}"
    # puts "span=#{fl.span}"

    ((t1 - t0) > Time::Span.new(nanoseconds: size * 1_000)).should be_true
  end
end