diff --git a/refs/test/generate.go b/refs/test/generate.go
index 6217a96..d74963e 100644
--- a/refs/test/generate.go
+++ b/refs/test/generate.go
@@ -1,6 +1,8 @@
 package refstest
 
 import (
+	crand "crypto/rand"
+	"crypto/sha256"
 	"math/rand"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
@@ -21,7 +23,10 @@ func GenerateOwnerID(empty bool) *refs.OwnerID {
 	m := new(refs.OwnerID)
 
 	if !empty {
-		m.SetValue([]byte{1, 2, 3})
+		id := make([]byte, 25)
+		_, _ = crand.Read(id)
+
+		m.SetValue(id)
 	}
 
 	return m
@@ -42,7 +47,10 @@ func GenerateObjectID(empty bool) *refs.ObjectID {
 	m := new(refs.ObjectID)
 
 	if !empty {
-		m.SetValue([]byte{1, 2, 3})
+		id := make([]byte, sha256.Size)
+		_, _ = crand.Read(id)
+
+		m.SetValue(id)
 	}
 
 	return m
@@ -65,7 +73,10 @@ func GenerateContainerID(empty bool) *refs.ContainerID {
 	m := new(refs.ContainerID)
 
 	if !empty {
-		m.SetValue([]byte{1, 2, 3})
+		id := make([]byte, sha256.Size)
+		_, _ = crand.Read(id)
+
+		m.SetValue(id)
 	}
 
 	return m
@@ -100,8 +111,11 @@ func GenerateChecksum(empty bool) *refs.Checksum {
 	m := new(refs.Checksum)
 
 	if !empty {
-		m.SetType(1)
-		m.SetSum([]byte{1, 2, 3})
+		cs := make([]byte, sha256.Size)
+		_, _ = crand.Read(cs)
+
+		m.SetType(refs.SHA256)
+		m.SetSum(cs)
 	}
 
 	return m