[ONOS-5058][ONOS-4796][ONOS-4893]compiler annotation implementation + defect fix

Change-Id: Ie317409d9ab1d36e626433558b2d51f26daaac82
diff --git a/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/CompilerAnnotationListenerTest.java b/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/CompilerAnnotationListenerTest.java
deleted file mode 100644
index cbc4009..0000000
--- a/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/CompilerAnnotationListenerTest.java
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * 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.listeners;
-
-import java.io.IOException;
-import org.junit.Test;
-import org.onosproject.yangutils.datamodel.YangAppDataStructure;
-import org.onosproject.yangutils.datamodel.YangCompilerAnnotation;
-import org.onosproject.yangutils.datamodel.YangDataStructure;
-import org.onosproject.yangutils.datamodel.YangModule;
-import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.datamodel.YangNodeType;
-import org.onosproject.yangutils.parser.exceptions.ParserException;
-import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
-
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.hamcrest.core.Is.is;
-
-/**
- * Test cases for compiler annotation listener.
- */
-public class CompilerAnnotationListenerTest {
-
-    private final YangUtilsParserManager manager = new YangUtilsParserManager();
-
-    /**
-     * Checks valid compiler annotation statements.
-     */
-    @Test
-    public void processValidCompilerAnnotation() throws IOException, ParserException {
-
-        YangNode node = manager.getDataModel("src/test/resources/ValidCompilerAnnotation.yang");
-
-        // Check whether the data model tree returned is of type module.
-        assertThat((node instanceof YangModule), is(true));
-
-        // Check whether the node type is set properly to module.
-        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
-
-        // Check whether the module name is set correctly.
-        YangModule yangNode = (YangModule) node;
-        assertThat(yangNode.getName(), is("event"));
-
-        YangCompilerAnnotation compilerAnnotation = yangNode.getCompilerAnnotationList()
-                .iterator().next();
-        assertThat(compilerAnnotation.getPrefix(), is("ca"));
-        assertThat(compilerAnnotation.getPath(), is("/candidate-servers/server"));
-
-        YangAppDataStructure appDataStructure = compilerAnnotation.getYangAppDataStructure();
-        assertThat(appDataStructure.getPrefix(), is("abc"));
-        assertThat(appDataStructure.getDataStructure(), is(YangDataStructure.MAP));
-
-        assertThat(appDataStructure.getKeyList().iterator().next(), is("name"));
-    }
-}
diff --git a/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/TypeListenerTest.java b/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/TypeListenerTest.java
index b6b497a..60da95e 100644
--- a/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/TypeListenerTest.java
+++ b/plugin/src/test/java/org/onosproject/yangutils/parser/impl/listeners/TypeListenerTest.java
@@ -21,6 +21,8 @@
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.onosproject.yangutils.datamodel.YangContainer;
+import org.onosproject.yangutils.datamodel.YangLeafRef;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
 import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
@@ -147,4 +149,25 @@
         assertThat(leafInfo.getDataType().getDataTypeName(), is("instance-identifier"));
         assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.INSTANCE_IDENTIFIER));
     }
+
+    /**
+     * Checks for leaf ref path concatenation.
+     */
+    @Test
+    public void processLeafRefPathConcatenation() throws IOException, ParserException {
+
+        YangNode node = manager
+                .getDataModel("src/test/resources/leafRefPathConcatenation.yang");
+
+        assertThat((node instanceof YangModule), is(true));
+        assertThat(node.getNodeType(), is(YangNodeType.MODULE_NODE));
+        YangModule yangNode = (YangModule) node;
+        assertThat(yangNode.getName(), is("test"));
+
+        YangTypeDef typeDef = (YangTypeDef) yangNode.getChild();
+        assertThat(typeDef.getName(), is("isis-instance-state-ref"));
+        assertThat(typeDef.getTypeDefBaseType().getDataType(), is(YangDataTypes.LEAFREF));
+        YangLeafRef leafRef = ((YangLeafRef) typeDef.getTypeDefBaseType().getDataTypeExtendedInfo());
+        assertThat(leafRef.getPath(), is("/isis-prefix-ipv4-std/default-metric"));
+    }
 }