ServiceGroupIdentifier should be a record
[mdsal.git] / singleton-service / mdsal-singleton-common-api / src / test / java / org / opendaylight / mdsal / singleton / common / api / ServiceGroupIdentifierTest.java
diff --git a/singleton-service/mdsal-singleton-common-api/src/test/java/org/opendaylight/mdsal/singleton/common/api/ServiceGroupIdentifierTest.java b/singleton-service/mdsal-singleton-common-api/src/test/java/org/opendaylight/mdsal/singleton/common/api/ServiceGroupIdentifierTest.java
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+/*
+ * Copyright (c) 2023 PANTHEON.tech, s.r.o. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.mdsal.singleton.common.api;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import org.junit.jupiter.api.Test;
+
+class ServiceGroupIdentifierTest {
+    @Test
+    void rejectEmptyValue() {
+        final var ex = assertThrows(IllegalArgumentException.class, () -> new ServiceGroupIdentifier(""));
+        assertEquals("Value must not be blank", ex.getMessage());
+    }
+
+    @Test
+    void rejectNullValue() {
+        assertThrows(NullPointerException.class, () -> new ServiceGroupIdentifier(null));
+    }
+}