[ONOS-4563][ONOS-4564][ONOS-4551][ONOS-4538]defect fix
Change-Id: Ia3fe844e1e846d2e1d2c4359eefc815e7767aef9
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/parseutils/ListenerUtilTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/parseutils/ListenerUtilTest.java
new file mode 100644
index 0000000..c29b126
--- /dev/null
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/parseutils/ListenerUtilTest.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.parser.impl.parseutils;
+
+import java.io.IOException;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
+
+/**
+ * Test case for testing listener util.
+ */
+public class ListenerUtilTest {
+
+ @Rule
+ public ExpectedException thrown = ExpectedException.none();
+
+ private final YangUtilsParserManager manager = new YangUtilsParserManager();
+
+ /**
+ * Checks whether exception is thrown when identifier starts with xml.
+ */
+ @Test
+ public void validateIdentifierStartsWithXml() throws IOException {
+ thrown.expect(ParserException.class);
+ thrown.expectMessage("YANG file error : module identifier xMlTest must not start" +
+ " with (('X'|'x') ('M'|'m') ('L'|'l'))");
+ manager.getDataModel("src/test/resources/InValidIdentifierXML.yang");
+ }
+}