This is an automated cherry-pick of #8702

close #8698

Signed-off-by: ti-chi-bot <[email protected]>

pkg/assertutil/assertutil_test.go

@@ -19,15 +19,34 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+<<<<<<< HEAD:pkg/assertutil/assertutil_test.go
+=======
+	"github.com/tikv/pd/pkg/core"
+	"github.com/tikv/pd/pkg/statistics/utils"
+>>>>>>> 20087e290 (statistics: add gc in hot peer cache (#8702)):pkg/statistics/hot_cache_test.go
 )
 
 func TestNilFail(t *testing.T) {
 	t.Parallel()
 	re := require.New(t)
+<<<<<<< HEAD:pkg/assertutil/assertutil_test.go
 	var failErr error
 	checker := NewChecker()
 	checker.FailNow = func() {
 		failErr = errors.New("called assert func not exist")
+=======
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	for i := utils.RWType(0); i < utils.RWTypeLen; i++ {
+		cluster := core.NewBasicCluster()
+		cache := NewHotCache(ctx, cluster)
+		region := buildRegion(cluster, i, 3, 60)
+		stats := cache.CheckReadPeerSync(region, region.GetPeers(), []float64{100000000, 1000, 1000}, 60)
+		cache.Update(stats[0], i)
+		for range 100 {
+			re.True(cache.IsRegionHot(region, 1))
+		}
+>>>>>>> 20087e290 (statistics: add gc in hot peer cache (#8702)):pkg/statistics/hot_cache_test.go
 	}
 	re.Nil(checker.IsNil)
 	checker.AssertNil(nil)