/*
 * Copyright (c) 2016 Cisco Systems, Inc. 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.dom.api;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

import java.net.URI;
import org.junit.Test;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.common.QNameModule;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;

public class DOMDataTreeIdentifierTest {
    private static final String REF_LISTS = "ref-lists";
    private static final String TEST_LISTS = "test-lists";
    private static final String COMPARE_FIRST_LISTS = "A-test-lists";
    private static final String COMPARE_SECOND_LISTS = "B-test-lists";
    private static final QNameModule TEST_MODULE = QNameModule.create(URI.create(
            "urn:opendaylight:params:xml:ns:yang:controller:md:sal:test:store"));
    private static final YangInstanceIdentifier REF_YII_IID = YangInstanceIdentifier.create(
            new YangInstanceIdentifier.NodeIdentifier(QName.create(TEST_MODULE, REF_LISTS)));
    private static final YangInstanceIdentifier TEST_YII_IID = YangInstanceIdentifier.create(
            new YangInstanceIdentifier.NodeIdentifier(QName.create(TEST_MODULE, TEST_LISTS)));
    private static final DOMDataTreeIdentifier REF_TREE = new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
            REF_YII_IID);
    private static final DOMDataTreeIdentifier
        TEST_DIFF_TREE = new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,TEST_YII_IID);

    @Test
    public void constructTest() {
        assertNotNull("Instantiation", new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, REF_YII_IID));
    }

    @Test(expected = NullPointerException.class)
    public void firstArgumentNullTest() throws Exception {
        new DOMDataTreeIdentifier(null, REF_YII_IID);
    }

    @Test(expected = NullPointerException.class)
    public void secondArgumentNullTest() throws Exception {
        new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, null);
    }

    @Test
    public void hashCodeTest() {
        assertEquals("hashCode", REF_TREE.hashCode(), new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                REF_YII_IID).hashCode());
        assertNotEquals("hashCode", REF_TREE.hashCode(), TEST_DIFF_TREE.hashCode());
    }

    @Test
    public void equalsTest() {
        assertTrue("Equals same", REF_TREE.equals(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                REF_YII_IID)));
        assertFalse("Different DataStoreType", REF_TREE.equals(
                new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION,
                REF_YII_IID)));
        assertTrue("Equals same instance", REF_TREE.equals(REF_TREE));
        assertFalse("Different object", REF_TREE.equals(new Object()));
        assertFalse("Different instance", REF_TREE.equals(TEST_DIFF_TREE));
    }

    @Test
    public void compareToTest() {
        final YangInstanceIdentifier compareFirstIid = YangInstanceIdentifier.create(
                new YangInstanceIdentifier.NodeIdentifier(QName.create(TEST_MODULE, COMPARE_FIRST_LISTS)));
        final YangInstanceIdentifier compareSecondIid = YangInstanceIdentifier.create(
                new YangInstanceIdentifier.NodeIdentifier(QName.create(TEST_MODULE, COMPARE_SECOND_LISTS)));

        assertEquals("Compare same to same", REF_TREE.compareTo(
                new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                REF_YII_IID)), 0);
        assertNotEquals("Compare same to same with different datastore", REF_TREE.compareTo(new DOMDataTreeIdentifier(
                LogicalDatastoreType.CONFIGURATION, REF_YII_IID)), 0);
        assertEquals("Compare same to same with different datastore",
                new DOMDataTreeIdentifier(
                        LogicalDatastoreType.OPERATIONAL,
                        YangInstanceIdentifier.create(
                                YangInstanceIdentifier.NodeIdentifier.create(QName.create(TEST_MODULE, REF_LISTS)),
                                YangInstanceIdentifier.NodeIdentifier.create(QName.create(TEST_MODULE, TEST_LISTS))))
                .compareTo(REF_TREE), 1);
        assertTrue("Compare first to second", new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                compareFirstIid).compareTo(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                compareSecondIid)) < 0);
        assertTrue("Compare second to first", new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                compareSecondIid).compareTo(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                compareFirstIid)) > 0);
    }

    @Test
    public void containsTest() {
        assertTrue("Contains", REF_TREE.contains(new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL,
                REF_YII_IID)));
        assertEquals("Not contains", false, REF_TREE.contains(TEST_DIFF_TREE));
    }

    @Test
    public void toStringTest() {
        assertTrue("ToString", REF_TREE.toString().contains(REF_TREE.getRootIdentifier().toString()) && REF_TREE
                .toString().contains(REF_TREE.getDatastoreType().toString()));
    }
}