.of(0.0); // R0.00, ...which is granted immediately
    assertThat(limiter.acquire()).isWithin(EPSILON).of(0.2); // R0.20
    assertEvents("R0.00", "U0.20", "R0.00", "R0.20");
  }

  public void testSimpleAcquireEarliestAvailableIsInPast() {
    RateLimiter limiter = RateLimiter.create(5.0, stopwatch);
    assertThat(limiter.acquire()).isWithin(EPSILON).of(0.0);
    stopwatch.sleepMillis(400);

        .of(0.0); // R0.00, ...which is granted immediately
    assertThat(limiter.acquire()).isWithin(EPSILON).of(0.2); // R0.20
    assertEvents("R0.00", "U0.20", "R0.00", "R0.20");
  }

  public void testSimpleAcquireEarliestAvailableIsInPast() {
    RateLimiter limiter = RateLimiter.create(5.0, stopwatch);
    assertThat(limiter.acquire()).isWithin(EPSILON).of(0.0);
    stopwatch.sleepMillis(400);