if err != nil {
		t.Error(err)
	}
	exerciseTimingRatioHistogram(t, testHistogramName, t0, clk, registry, tro)
}

func TestTimingRatioHistogramVecElementSafeEarly(t *testing.T) {
	testHistogramName := "vec_element_safe_early"
	t0 := time.Now()
	clk := testclock.NewFakePassiveClock(t0)
	buckets := []float64{0, 1}
	vec := NewTestableTimingRatioHistogramVec(clk.Now,