add test case

Author: egegunes

Diff for: internal/patroni/config_test.go

@@ -976,6 +976,32 @@ postgresql:
   pgpass: /tmp/.pgpass
   use_unix_socket: true
 restapi: {}
+tags: {}
+	`, "\t\n")+"\n")
+
+	cluster.Spec.Patroni.CreateReplicaMethods = []v1beta1.CreateReplicaMethod{"basebackup", "pgbackrest"}
+	dataWithCustomMethods, err := instanceYAML(cluster, instance, nil)
+	assert.NilError(t, err)
+	assert.Equal(t, dataWithCustomMethods, strings.Trim(`
+# Generated by postgres-operator. DO NOT EDIT.
+# Your changes will not be saved.
+bootstrap:
+  initdb:
+  - data-checksums
+  - encoding=UTF8
+  - waldir=/pgdata/pg12_wal
+  - encryption-key-command=echo test
+  method: initdb
+kubernetes: {}
+postgresql:
+  basebackup:
+  - waldir=/pgdata/pg12_wal
+  create_replica_methods:
+  - basebackup
+  - pgbackrest
+  pgpass: /tmp/.pgpass
+  use_unix_socket: true
+restapi: {}
 tags: {}
 	`, "\t\n")+"\n")
 }