diff --git a/engine/attributes_it_test.go b/engine/attributes_it_test.go
index 7173e758b..238c44cde 100644
--- a/engine/attributes_it_test.go
+++ b/engine/attributes_it_test.go
@@ -119,5 +119,70 @@ func TestNewExternalAttributeProfileFromAttributeProfile(t *testing.T) {
 	if !reflect.DeepEqual(expected, rcv) {
 		t.Errorf("Expecting : %+v, received: %+v", utils.ToJSON(expected), utils.ToJSON(rcv))
 	}
-
+}
+
+func TestAttrSProcessEventReplyDigest(t *testing.T) {
+	eRpl := &AttrSProcessEventReply{
+		MatchedProfile: "ATTR_1",
+		AlteredFields:  []string{"Account", "Subject"},
+		CGREvent: &utils.CGREvent{
+			Tenant:  "cgrates.org",
+			ID:      "testAttributeSProcessEvent",
+			Context: utils.StringPointer(utils.MetaRating),
+			Event: map[string]interface{}{
+				"Account":     "1001",
+				"Subject":     "1001",
+				"Destination": "+491511231234",
+			},
+		},
+	}
+	expRpl := "Account:1001,Subject:1001"
+	val := eRpl.Digest()
+	if !reflect.DeepEqual(val, expRpl) {
+		t.Errorf("Expecting : %+v, received: %+v", utils.ToJSON(expRpl), utils.ToJSON(val))
+	}
+}
+
+func TestAttrSProcessEventReplyDigest2(t *testing.T) {
+	eRpl := &AttrSProcessEventReply{
+		MatchedProfile: "ATTR_1",
+		AlteredFields:  []string{},
+		CGREvent: &utils.CGREvent{
+			Tenant:  "cgrates.org",
+			ID:      "testAttributeSProcessEvent",
+			Context: utils.StringPointer(utils.MetaRating),
+			Event: map[string]interface{}{
+				"Account":     "1001",
+				"Subject":     "1001",
+				"Destination": "+491511231234",
+			},
+		},
+	}
+	expRpl := ""
+	val := eRpl.Digest()
+	if !reflect.DeepEqual(val, expRpl) {
+		t.Errorf("Expecting : %+v, received: %+v", utils.ToJSON(expRpl), utils.ToJSON(val))
+	}
+}
+
+func TestAttrSProcessEventReplyDigest3(t *testing.T) {
+	eRpl := &AttrSProcessEventReply{
+		MatchedProfile: "ATTR_1",
+		AlteredFields:  []string{"Subject"},
+		CGREvent: &utils.CGREvent{
+			Tenant:  "cgrates.org",
+			ID:      "testAttributeSProcessEvent",
+			Context: utils.StringPointer(utils.MetaRating),
+			Event: map[string]interface{}{
+				"Account":     "1001",
+				"Subject":     "1001",
+				"Destination": "+491511231234",
+			},
+		},
+	}
+	expRpl := "Subject:1001"
+	val := eRpl.Digest()
+	if !reflect.DeepEqual(val, expRpl) {
+		t.Errorf("Expecting : %+v, received: %+v", utils.ToJSON(expRpl), utils.ToJSON(val))
+	}
 }
diff --git a/engine/libsuppliers_test.go b/engine/libsuppliers_test.go
index 296842eb6..03caa9bf2 100644
--- a/engine/libsuppliers_test.go
+++ b/engine/libsuppliers_test.go
@@ -149,3 +149,72 @@ func TestLibSuppliersSortWeight(t *testing.T) {
 		t.Errorf("Expecting: %+v, received: %+v", eSpls.Sorting, result.Sorting)
 	}
 }
+
+func TestSortedSuppliersDigest(t *testing.T) {
+	eSpls := SortedSuppliers{
+		ProfileID: "SPL_WEIGHT_1",
+		Sorting:   utils.MetaWeight,
+		SortedSuppliers: []*SortedSupplier{
+			&SortedSupplier{
+				SupplierID: "supplier2",
+				SortingData: map[string]interface{}{
+					"Weight": 20.0,
+				},
+				SupplierParameters: "param2",
+			},
+			&SortedSupplier{
+				SupplierID: "supplier1",
+				SortingData: map[string]interface{}{
+					"Weight": 10.0,
+				},
+				SupplierParameters: "param1",
+			},
+		},
+	}
+	exp := "supplier2:param2,supplier1:param1"
+	rcv := eSpls.Digest()
+	if !reflect.DeepEqual(rcv, exp) {
+		t.Errorf("Expecting: %+v, received: %+v", exp, rcv)
+	}
+}
+
+func TestSortedSuppliersDigest2(t *testing.T) {
+	eSpls := SortedSuppliers{
+		ProfileID: "SPL_WEIGHT_1",
+		Sorting:   utils.MetaWeight,
+		SortedSuppliers: []*SortedSupplier{
+			&SortedSupplier{
+				SupplierID: "supplier1",
+				SortingData: map[string]interface{}{
+					"Weight": 30.0,
+				},
+				SupplierParameters: "param1",
+			},
+			&SortedSupplier{
+				SupplierID: "supplier2",
+				SortingData: map[string]interface{}{
+					"Weight": 20.0,
+				},
+				SupplierParameters: "param2",
+			},
+		},
+	}
+	exp := "supplier1:param1,supplier2:param2"
+	rcv := eSpls.Digest()
+	if !reflect.DeepEqual(rcv, exp) {
+		t.Errorf("Expecting: %+v, received: %+v", exp, rcv)
+	}
+}
+
+func TestSortedSuppliersDigest3(t *testing.T) {
+	eSpls := SortedSuppliers{
+		ProfileID:       "SPL_WEIGHT_1",
+		Sorting:         utils.MetaWeight,
+		SortedSuppliers: []*SortedSupplier{},
+	}
+	exp := ""
+	rcv := eSpls.Digest()
+	if !reflect.DeepEqual(rcv, exp) {
+		t.Errorf("Expecting: %+v, received: %+v", exp, rcv)
+	}
+}