Finally found a fix for the bug I was chasing for 2h...

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>

tsdb/compact_test.go

@@ -991,7 +991,7 @@ func TestCancelCompactions(t *testing.T) {
 	}
 	// Measure the compaction time when closing the db in the middle of compaction.
 	{
-		db, err := open(tmpdirCopy, log.NewNopLogger(), nil, nil, []int64{1, 2000})
+		db, err := open(tmpdirCopy, log.NewNopLogger(), nil, DefaultOptions(), []int64{1, 2000})
 		testutil.Ok(t, err)
 		testutil.Equals(t, 3, len(db.Blocks()), "initial block count mismatch")
 		testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran), "initial compaction counter mismatch")

util/teststorage/storage.go

@@ -16,7 +16,9 @@ package teststorage
 import (
 	"io/ioutil"
 	"os"
+	"time"
 
+	"github.com/prometheus/common/model"
 	"github.com/prometheus/prometheus/storage"
 	"github.com/prometheus/prometheus/tsdb"
 	"github.com/prometheus/prometheus/util/testutil"
@@ -32,7 +34,10 @@ func New(t testutil.T) storage.Storage {
 
 	// Tests just load data for a series sequentially. Thus we
 	// need a long appendable window.
-	db, err := tsdb.Open(dir, nil, nil, nil)
+	db, err := tsdb.Open(dir, nil, nil, &tsdb.Options{
+		MinBlockDuration: model.Duration(24 * time.Hour),
+		MaxBlockDuration: model.Duration(24 * time.Hour),
+	})
 	if err != nil {
 		t.Fatalf("Opening test storage failed: %s", err)
 	}