[Developer] #617 apply DDS MCP end-user authorization

src/test/java/com/cloudhandson/vpdbackoffice/service/DdsAuthorizationChangeNotifierTest.java

@@ -0,0 +1,21 @@
+package com.cloudhandson.vpdbackoffice.service;
+
+import static org.mockito.Mockito.verify;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.support.DefaultListableBeanFactory;
+
+class DdsAuthorizationChangeNotifierTest {
+
+  @Test
+  void invokesTheOptionalDdsSynchronizerWhenTheDedicatedApplicationProvidesOne() {
+    DdsAuthorizationSynchronizer synchronizer = org.mockito.Mockito.mock(DdsAuthorizationSynchronizer.class);
+    DefaultListableBeanFactory factory = new DefaultListableBeanFactory();
+    factory.registerSingleton("ddsSynchronizer", synchronizer);
+
+    new DdsAuthorizationChangeNotifier(factory.getBeanProvider(DdsAuthorizationSynchronizer.class))
+        .changed("PERMISSION_SAVED");
+
+    verify(synchronizer).synchronize("PERMISSION_SAVED");
+  }
+}