diff --git a/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/linker/InterFileLinkingTest.java b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/linker/InterFileLinkingTest.java
new file mode 100644
index 0000000..fd7b8ad
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/java/org/onosproject/yangutils/linker/InterFileLinkingTest.java
@@ -0,0 +1,741 @@
+/*
+ * 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.linker;
+
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.ListIterator;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.junit.Test;
+import org.onosproject.yangutils.datamodel.YangDataTypes;
+import org.onosproject.yangutils.datamodel.YangDerivedInfo;
+import org.onosproject.yangutils.datamodel.YangGrouping;
+import org.onosproject.yangutils.datamodel.YangLeaf;
+import org.onosproject.yangutils.datamodel.YangModule;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangNodeType;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
+import org.onosproject.yangutils.datamodel.YangUses;
+import org.onosproject.yangutils.datamodel.utils.ResolvableStatus;
+import org.onosproject.yangutils.linker.impl.YangLinkerManager;
+import org.onosproject.yangutils.parser.exceptions.ParserException;
+import org.onosproject.yangutils.parser.impl.YangUtilsParserManager;
+import org.onosproject.yangutils.plugin.manager.YangFileInfo;
+import org.onosproject.yangutils.plugin.manager.YangUtilManager;
+import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangFileScanner;
+
+import static org.hamcrest.CoreMatchers.nullValue;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.core.Is.is;
+import static org.onosproject.yangutils.datamodel.YangDataTypes.DERIVED;
+import static org.onosproject.yangutils.datamodel.YangDataTypes.STRING;
+import static org.onosproject.yangutils.datamodel.YangNodeType.MODULE_NODE;
+import static org.onosproject.yangutils.datamodel.utils.ResolvableStatus.RESOLVED;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.deleteDirectory;
+
+/**
+ * Test cases for testing inter file linking.
+ */
+public class InterFileLinkingTest {
+
+    private final YangUtilsParserManager manager = new YangUtilsParserManager();
+    private final YangUtilManager utilManager = new YangUtilManager();
+    private final YangLinkerManager yangLinkerManager = new YangLinkerManager();
+
+    /**
+     * Checks inter file type linking.
+     */
+    @Test
+    public void processInterFileTypeLinking()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfiletype";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) refNode.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks inter file uses linking.
+     */
+    @Test
+    public void processInterFileUsesLinking()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfileuses";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat((selfNode instanceof YangModule), is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator;
+        YangLeaf leafInfo;
+
+        // Check whether grouping is the sibling of module's child.
+        assertThat((refNode.getChild() instanceof YangGrouping), is(true));
+
+        YangGrouping grouping = (YangGrouping) refNode.getChild();
+        leafIterator = grouping.getListOfLeaf().listIterator();
+        leafInfo = leafIterator.next();
+
+        // Check whether the information in the leaf is correct under grouping.
+        assertThat(leafInfo.getName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.STRING));
+
+        // Check whether uses is module's child.
+        assertThat((yangNode.getChild() instanceof YangUses), is(true));
+        YangUses uses = (YangUses) yangNode.getChild();
+
+        // Check whether uses get resolved.
+        assertThat(uses.getResolvableStatus(),
+                is(ResolvableStatus.RESOLVED));
+
+//        leafIterator = yangNode.getListOfLeaf().listIterator();
+//        leafInfo = leafIterator.next();
+//
+//        // Check whether the information in the leaf is correct under module.
+//        assertThat(leafInfo.getName(), is("hello"));
+//        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
+//        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.STRING));
+    }
+
+    /**
+     * Checks inter file type linking with include list.
+     */
+    @Test
+    public void processInterFileTypeLinkingWithIncludeList()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfiletypewithinclude";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Carry out linking of sub module with module.
+        yangLinkerManager.linkSubModulesToParentModule(utilManager.getYangFileInfoSet());
+
+        // Add reference to include list.
+        yangLinkerManager.addRefToYangFilesIncludeList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) refNode.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks inter file uses linking with include list.
+     */
+    @Test
+    public void processInterFileUsesLinkingWithInclude()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfileuseswithinclude";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Carry out linking of sub module with module.
+        yangLinkerManager.linkSubModulesToParentModule(utilManager.getYangFileInfoSet());
+
+        // Add reference to include list.
+        yangLinkerManager.addRefToYangFilesIncludeList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat((selfNode instanceof YangModule), is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(YangNodeType.MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator;
+        YangLeaf leafInfo;
+
+        // Check whether grouping is the sibling of module's child.
+        assertThat((refNode.getChild() instanceof YangGrouping), is(true));
+
+        YangGrouping grouping = (YangGrouping) refNode.getChild();
+        leafIterator = grouping.getListOfLeaf().listIterator();
+        leafInfo = leafIterator.next();
+
+        // Check whether the information in the leaf is correct under grouping.
+        assertThat(leafInfo.getName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
+        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.STRING));
+
+        // Check whether uses is module's child.
+        assertThat((yangNode.getChild() instanceof YangUses), is(true));
+        YangUses uses = (YangUses) yangNode.getChild();
+
+        // Check whether uses get resolved.
+        assertThat(uses.getResolvableStatus(),
+                is(ResolvableStatus.RESOLVED));
+
+//        leafIterator = yangNode.getListOfLeaf().listIterator();
+//        leafInfo = leafIterator.next();
+//
+//        // Check whether the information in the leaf is correct under module.
+//        assertThat(leafInfo.getName(), is("hello"));
+//        assertThat(leafInfo.getDataType().getDataTypeName(), is("string"));
+//        assertThat(leafInfo.getDataType().getDataType(), is(YangDataTypes.STRING));
+    }
+
+    /**
+     * Checks inter file type linking with revision.
+     */
+    @Test
+    public void processInterFileTypeLinkingWithRevision()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfiletypewithrevision";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) refNode.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks inter file type linking with revision in name.
+     */
+    @Test
+    public void processInterFileTypeLinkingWithRevisionInName()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfiletypewithrevisioninname";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        Iterator<YangFileInfo> yangFileInfoIterator = utilManager.getYangFileInfoSet().iterator();
+
+        YangFileInfo yangFileInfo = yangFileInfoIterator.next();
+
+        if (yangFileInfo.getRootNode().getName().equals("module1")) {
+            selfNode = yangFileInfo.getRootNode();
+            refNode = yangFileInfoIterator.next().getRootNode();
+        } else {
+            refNode = yangFileInfo.getRootNode();
+            selfNode = yangFileInfoIterator.next().getRootNode();
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("module1"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("invalid-interval"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("hello"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) refNode.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks hierarchical inter file type linking.
+     */
+    @Test
+    public void processHierarchicalInterFileTypeLinking()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/hierarchicalinterfiletype";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode1 = null;
+        YangNode refNode2 = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        for (YangFileInfo yangFile : utilManager.getYangFileInfoSet()) {
+            if (yangFile.getRootNode().getName().equals("ietf-network-topology")) {
+                selfNode = yangFile.getRootNode();
+            } else if (yangFile.getRootNode().getName().equals("ietf-network")) {
+                refNode1 = yangFile.getRootNode();
+            } else {
+                refNode2 = yangFile.getRootNode();
+            }
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("ietf-network-topology"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("source-node"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("node-id"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) refNode1.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void processHierarchicalIntraWithInterFileTypeLinking()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/hierarchicalintrawithinterfiletype";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+
+        YangNode refNode1 = null;
+        YangNode selfNode = null;
+
+        // Create YANG node set
+        yangLinkerManager.createYangNodeSet(utilManager.getYangFileInfoSet());
+
+        // Add references to import list.
+        yangLinkerManager.addRefToYangFilesImportList(utilManager.getYangFileInfoSet());
+
+        // Carry out inter-file linking.
+        yangLinkerManager.processInterFileLinking(utilManager.getYangFileInfoSet());
+
+        for (YangFileInfo yangFile : utilManager.getYangFileInfoSet()) {
+            if (yangFile.getRootNode().getName().equals("ietf-network")) {
+                selfNode = yangFile.getRootNode();
+            } else if (yangFile.getRootNode().getName().equals("ietf-inet-types")) {
+                refNode1 = yangFile.getRootNode();
+            }
+        }
+
+        // Check whether the data model tree returned is of type module.
+        assertThat(selfNode instanceof YangModule, is(true));
+
+        // Check whether the node type is set properly to module.
+        assertThat(selfNode.getNodeType(), is(MODULE_NODE));
+
+        // Check whether the module name is set correctly.
+        YangModule yangNode = (YangModule) selfNode;
+        assertThat(yangNode.getName(), is("ietf-network"));
+
+        ListIterator<YangLeaf> leafIterator = yangNode.getListOfLeaf().listIterator();
+        YangLeaf leafInfo = leafIterator.next();
+
+        assertThat(leafInfo.getName(), is("node-ref"));
+        assertThat(leafInfo.getDataType().getDataTypeName(), is("node-id"));
+        assertThat(leafInfo.getDataType().getDataType(), is(DERIVED));
+
+        assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+                is((YangTypeDef) selfNode.getChild()));
+
+        assertThat(leafInfo.getDataType().getResolvableStatus(), is(RESOLVED));
+
+        YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo();
+
+        // Check for the effective built-in type.
+        assertThat(derivedInfo.getEffectiveBuiltInType(), is(STRING));
+
+        // Check for the restriction.
+        assertThat(derivedInfo.getLengthRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getRangeRestrictionString(), is(nullValue()));
+        assertThat(derivedInfo.getPatternRestriction(), is(nullValue()));
+        assertThat(derivedInfo.getResolvedExtendedInfo(), is(nullValue()));
+    }
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void interFileWithUsesReferringType()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfilewithusesreferringtype";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+        utilManager.resolveDependenciesUsingLinker();
+
+        String userDir = System.getProperty("user.dir");
+        YangPluginConfig yangPluginConfig = new YangPluginConfig();
+        yangPluginConfig.setCodeGenDir("target/interfilewithusesreferringtype/");
+
+        utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);
+
+        deleteDirectory(userDir + "/target/interfilewithusesreferringtype/");
+
+    }
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void file1UsesFile2TypeDefFile3Type()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/file1UsesFile2TypeDefFile3Type";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+        utilManager.resolveDependenciesUsingLinker();
+
+        String userDir = System.getProperty("user.dir");
+        YangPluginConfig yangPluginConfig = new YangPluginConfig();
+        yangPluginConfig.setCodeGenDir("target/file1UsesFile2TypeDefFile3Type/");
+
+        utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);
+
+        deleteDirectory(userDir + "/target/file1UsesFile2TypeDefFile3Type/");
+
+    }
+
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void interFileIetf()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/interfileietf";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+        utilManager.resolveDependenciesUsingLinker();
+
+        String userDir = System.getProperty("user.dir");
+        YangPluginConfig yangPluginConfig = new YangPluginConfig();
+        yangPluginConfig.setCodeGenDir("target/interfileietf/");
+
+        utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);
+
+        deleteDirectory(userDir + "/target/interfileietf/");
+
+    }
+
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void usesInContainer()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/usesInContainer";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+        utilManager.resolveDependenciesUsingLinker();
+
+        String userDir = System.getProperty("user.dir");
+        YangPluginConfig yangPluginConfig = new YangPluginConfig();
+        yangPluginConfig.setCodeGenDir("target/usesInContainer/");
+
+        utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);
+
+        deleteDirectory(userDir + "/target/usesInContainer/");
+
+    }
+
+
+    /**
+     * Checks hierarchical intra with inter file type linking.
+     */
+    @Test
+    public void groupingNodeSameAsModule()
+            throws IOException, ParserException, MojoExecutionException {
+
+        String searchDir = "src/test/resources/groupingNodeSameAsModule";
+        utilManager.createYangFileInfoSet(YangFileScanner.getYangFiles(searchDir));
+        utilManager.parseYangFileInfoSet();
+        utilManager.resolveDependenciesUsingLinker();
+
+        String userDir = System.getProperty("user.dir");
+        YangPluginConfig yangPluginConfig = new YangPluginConfig();
+        yangPluginConfig.setCodeGenDir("target/groupingNodeSameAsModule/");
+
+        utilManager.translateToJava(utilManager.getYangFileInfoSet(), yangPluginConfig);
+
+        deleteDirectory(userDir + "/target/groupingNodeSameAsModule/");
+
+    }
+}