minor fixes for downsample test

Signed-off-by: metonymic-smokey <ahuja.aditi@gmail.com>

pkg/compact/compact_test.go

@@ -14,7 +14,6 @@ import (
 	"time"
 
 	"github.com/go-kit/kit/log"
-	"github.com/go-kit/kit/log/level"
 	"github.com/oklog/ulid"
 	"github.com/pkg/errors"
 	"github.com/prometheus/client_golang/prometheus"
@@ -595,11 +594,10 @@ func TestDownsampleProgressCalculate(t *testing.T) {
 			err = ds.ProgressCalculate(context.Background(), groups)
 			testutil.Ok(t, err)
 			metrics := ds.DownsampleProgressMetrics
-			for _, key := range keys {
+			for key := range tcase.expected {
 				a, err := metrics.NumberOfBlocksDownsampled.GetMetricWithLabelValues(key)
-				if err != nil {
-					level.Warn(logger).Log("msg", "could not get number of blocks")
-				}
+
+				testutil.Ok(t, err)
 				testutil.Equals(t, tcase.expected[key], promtestutil.ToFloat64(a))
 			}
 		}); !ok {