use test utils in chunks_test
use test utils in chunks_test

GoogleCloudPlatform/prometheus,keegancsmith/prometheus,alileza/prometheus,keegancsmith/prometheus,keegancsmith/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,alileza/prometheus,prometheus/prometheus,alileza/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,Gouthamve/prometheus,prometheus/prometheus,prometheus/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,prometheus/prometheus,kangwoo/prometheus,Gouthamve/tsdb,kangwoo/prometheus,prometheus/tsdb,Gouthamve/prometheus,Gouthamve/prometheus,kangwoo/prometheus,GoogleCloudPlatform/prometheus,alileza/prometheus,keegancsmith/prometheus,kangwoo/prometheus,keegancsmith/prometheus