diff --git a/server/cluster/cluster_test.go b/server/cluster/cluster_test.go
index cfa070f945d6..04e1aa427707 100644
--- a/server/cluster/cluster_test.go
+++ b/server/cluster/cluster_test.go
@@ -428,7 +428,6 @@ func (s *testClusterInfoSuite) TestRegionHeartbeatHotStat(c *C) {
 }
 
 func (s *testClusterInfoSuite) TestBucketHeartbeat(c *C) {
-
 	_, opt, err := newTestScheduleConfig()
 	c.Assert(err, IsNil)
 	cluster := newTestRaftCluster(s.ctx, mockid.NewIDAllocator(), opt, storage.NewStorageWithMemoryBackend(), core.NewBasicCluster())
@@ -444,7 +443,7 @@ func (s *testClusterInfoSuite) TestBucketHeartbeat(c *C) {
 
 	// case2: bucket can be processed after the region update.
 	stores := newTestStores(3, "2.0.0")
-	n, np := uint64(1), uint64(3)
+	n, np := uint64(1), uint64(1)
 	regions := newTestRegions(n, np)
 	for _, store := range stores {
 		c.Assert(cluster.putStoreLocked(store), IsNil)
diff --git a/server/core/region.go b/server/core/region.go
index 0e27a80455c2..c7b75e7eb95c 100644
--- a/server/core/region.go
+++ b/server/core/region.go
@@ -184,7 +184,6 @@ func (r *RegionInfo) Inherit(origin *RegionInfo) {
 	if r.buckets == nil {
 		r.buckets = origin.buckets
 	}
-
 }
 
 // Clone returns a copy of current regionInfo.
diff --git a/server/core/region_test.go b/server/core/region_test.go
index cc430e9b492a..fc63fa72a8a9 100644
--- a/server/core/region_test.go
+++ b/server/core/region_test.go
@@ -210,7 +210,6 @@ func (s *testRegionInfoSuite) TestInherit(c *C) {
 		} else {
 			c.Assert(r.GetBuckets(), Not(DeepEquals), d.originBuckets)
 		}
-
 	}
 }