fix(txpipeline): test normal tx pipeline behaviour

Author: ndyakov

osscluster_test.go

@@ -462,8 +462,7 @@ var _ = Describe("ClusterClient", func() {
 		Describe("pipelining", func() {
 			var pipe *redis.Pipeline
 
-			assertPipeline := func() {
-				keys := []string{"A", "B", "C", "D", "E", "F", "G"}
+			assertPipeline := func(keys []string) {
 
 				It("follows redirects", func() {
 					if !failover {
@@ -547,7 +546,8 @@ var _ = Describe("ClusterClient", func() {
 
 				AfterEach(func() {})
 
-				assertPipeline()
+				keys := []string{"A", "B", "C", "D", "E", "F", "G"}
+				assertPipeline(keys)
 
 				It("doesn't fail node with context.Canceled error", func() {
 					ctx, cancel := context.WithCancel(context.Background())
@@ -590,7 +590,10 @@ var _ = Describe("ClusterClient", func() {
 
 				AfterEach(func() {})
 
-				assertPipeline()
+				// TxPipeline doesn't support cross slot commands.
+				// Use hashtag to force all keys to the same slot.
+				keys := []string{"A{s}", "B{s}", "C{s}", "D{s}", "E{s}", "F{s}", "G{s}"}
+				assertPipeline(keys)
 			})
 		})