native histogram: use exemplars in concurrency test
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
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@ -1049,10 +1049,14 @@ func TestNativeHistogramConcurrency(t *testing.T) {
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go func(vals []float64) {
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start.Wait()
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for _, v := range vals {
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for i, v := range vals {
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// An observation every 1 to 10 seconds.
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atomic.AddInt64(&ts, rand.Int63n(10)+1)
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his.Observe(v)
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if i%2 == 0 {
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his.Observe(v)
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} else {
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his.(ExemplarObserver).ObserveWithExemplar(v, Labels{"foo": "bar"})
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}
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}
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end.Done()
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}(vals)
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