feat: migrate redis breaker into hook (#3982)

core/stores/redis/breakerhook_test.go

@@ -0,0 +1,135 @@
+package redis
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/stretchr/testify/assert"
+	"github.com/zeromicro/go-zero/core/breaker"
+)
+
+func TestBreakerHook_ProcessHook(t *testing.T) {
+	t.Run("breakerHookOpen", func(t *testing.T) {
+		s := miniredis.RunT(t)
+
+		rds := MustNewRedis(RedisConf{
+			Host: s.Addr(),
+			Type: NodeType,
+		})
+
+		someError := errors.New("ERR some error")
+		s.SetError(someError.Error())
+
+		var err error
+		for i := 0; i < 1000; i++ {
+			_, err = rds.Get("key")
+			if err != nil && err.Error() != someError.Error() {
+				break
+			}
+		}
+		assert.Equal(t, breaker.ErrServiceUnavailable, err)
+	})
+
+	t.Run("breakerHookClose", func(t *testing.T) {
+		s := miniredis.RunT(t)
+
+		rds := MustNewRedis(RedisConf{
+			Host: s.Addr(),
+			Type: NodeType,
+		})
+
+		var err error
+		for i := 0; i < 1000; i++ {
+			_, err = rds.Get("key")
+			if err != nil {
+				break
+			}
+		}
+		assert.NotEqual(t, breaker.ErrServiceUnavailable, err)
+	})
+
+	t.Run("breakerHook_ignoreCmd", func(t *testing.T) {
+		s := miniredis.RunT(t)
+
+		rds := MustNewRedis(RedisConf{
+			Host: s.Addr(),
+			Type: NodeType,
+		})
+
+		someError := errors.New("ERR some error")
+		s.SetError(someError.Error())
+
+		var err error
+
+		node, err := getRedis(rds)
+		assert.NoError(t, err)
+
+		for i := 0; i < 1000; i++ {
+			_, err = rds.Blpop(node, "key")
+			if err != nil && err.Error() != someError.Error() {
+				break
+			}
+		}
+		assert.Equal(t, someError.Error(), err.Error())
+	})
+}
+
+func TestBreakerHook_ProcessPipelineHook(t *testing.T) {
+	t.Run("breakerPipelineHookOpen", func(t *testing.T) {
+		s := miniredis.RunT(t)
+
+		rds := MustNewRedis(RedisConf{
+			Host: s.Addr(),
+			Type: NodeType,
+		})
+
+		someError := errors.New("ERR some error")
+		s.SetError(someError.Error())
+
+		var err error
+		for i := 0; i < 1000; i++ {
+			err = rds.Pipelined(
+				func(pipe Pipeliner) error {
+					pipe.Incr(context.Background(), "pipelined_counter")
+					pipe.Expire(context.Background(), "pipelined_counter", time.Hour)
+					pipe.ZAdd(context.Background(), "zadd", Z{Score: 12, Member: "zadd"})
+					return nil
+				},
+			)
+
+			if err != nil && err.Error() != someError.Error() {
+				break
+			}
+		}
+		assert.Equal(t, breaker.ErrServiceUnavailable, err)
+	})
+
+	t.Run("breakerPipelineHookClose", func(t *testing.T) {
+		s := miniredis.RunT(t)
+
+		rds := MustNewRedis(RedisConf{
+			Host: s.Addr(),
+			Type: NodeType,
+		})
+
+		var err error
+		for i := 0; i < 1000; i++ {
+			err = rds.Pipelined(
+				func(pipe Pipeliner) error {
+					pipe.Incr(context.Background(), "pipelined_counter")
+					pipe.Expire(context.Background(), "pipelined_counter", time.Hour)
+					pipe.ZAdd(context.Background(), "zadd", Z{Score: 12, Member: "zadd"})
+					return nil
+				},
+			)
+
+			if err != nil {
+				break
+			}
+		}
+		assert.NotEqual(t, breaker.ErrServiceUnavailable, err)
+	})
+}