/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.directory.shared.ldap.codec.search;


import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

import java.nio.ByteBuffer;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.directory.junit.tools.Concurrent;
import org.apache.directory.junit.tools.ConcurrentJunitRunner;
import org.apache.directory.shared.asn1.DecoderException;
import org.apache.directory.shared.asn1.ber.Asn1Decoder;
import org.apache.directory.shared.asn1.ber.Asn1Container;
import org.apache.directory.shared.asn1.EncoderException;
import org.apache.directory.shared.ldap.codec.LdapMessageContainer;
import org.apache.directory.shared.ldap.constants.SchemaConstants;
import org.apache.directory.shared.ldap.filter.SearchScope;
import org.apache.directory.shared.ldap.message.AliasDerefMode;
import org.apache.directory.shared.ldap.codec.message.LdapEncoder;
import org.apache.directory.shared.ldap.message.SearchRequest;
import org.apache.directory.shared.ldap.schema.normalizers.DeepTrimToLowerNormalizer;
import org.apache.directory.shared.ldap.schema.normalizers.OidNormalizer;
import org.apache.directory.shared.util.Strings;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;


/**
 * A test case for SearchRequest messages
 * 
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 */
@RunWith(ConcurrentJunitRunner.class)
@Concurrent()
public class SearchRequestMatchingRuleAssertionTest
{
    /** The encoder instance */
    LdapEncoder encoder = new org.apache.directory.shared.ldap.codec.message.LdapEncoder();

    static Map<String, OidNormalizer> oids = new HashMap<String, OidNormalizer>();


    @BeforeClass
    public static void setUp() throws Exception
    {
        // DC normalizer
        OidNormalizer dcOidNormalizer = new OidNormalizer( "dc", new DeepTrimToLowerNormalizer(
            SchemaConstants.DOMAIN_COMPONENT_AT_OID ) );

        oids.put( "dc", dcOidNormalizer );
        oids.put( "domaincomponent", dcOidNormalizer );
        oids.put( "0.9.2342.19200300.100.1.25", dcOidNormalizer );

        // OU normalizer
        OidNormalizer ouOidNormalizer = new OidNormalizer( "ou", new DeepTrimToLowerNormalizer(
            SchemaConstants.OU_AT_OID ) );

        oids.put( "ou", ouOidNormalizer );
        oids.put( "organizationalUnitName", ouOidNormalizer );
        oids.put( "2.5.4.11", ouOidNormalizer );

        // ObjectClass normalizer
        OidNormalizer objectClassOidNormalizer = new OidNormalizer( "objectClass", new DeepTrimToLowerNormalizer(
            SchemaConstants.OBJECT_CLASS_AT_OID ) );

        oids.put( "objectclass", objectClassOidNormalizer );
        oids.put( "2.5.4.0", objectClassOidNormalizer );
    }


    /**
     * Tests an search request decode with a simple equality match filter.
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatch()
    {
        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( 0x63 );
        stream.put( new byte[]
            {
                0x30,
                0x61, // LDAPMessage ::= SEQUENCE {
                0x02,
                0x01,
                0x01, //   messageID       MessageID,
                0x63,
                0x5C, //   protocolOp      CHOICE {
                //     searchRequest   SearchRequest,
                //
                // SearchRequest ::= [APPLICATION 3] SEQUENCE {
                0x04,
                0x11, //   baseObject      LDAPDN, (dc=example,dc=com)
                'd', 'c', '=', 'e', 'x', 'a', 'm', 'p',
                'l',
                'e',
                ',',
                'd',
                'c',
                '=',
                'c',
                'o',
                'm',
                //   scope           ENUMERATED {
                0x0A,
                0x01,
                0x00, //      baseObject              (0), ...
                //   derefAliases    ENUMERATED {
                0x0A,
                0x01,
                0x02, //     derefFindingBaseObj     (2),...
                0x02,
                0x01,
                0x02, //   sizeLimit       INTEGER (0 .. maxInt), (2)
                0x02,
                0x01,
                0x03, //   timeLimit       INTEGER (0 .. maxInt), (3)
                0x01,
                0x01,
                ( byte ) 0xFF, //   typesOnly       BOOLEAN, (true)
                ( byte ) 0xA9,
                0x21, //   filter          Filter,
                //
                // Filter ::= CHOICE {
                //   extensibleMatch [9] MatchingRuleAssertion }
                //
                // MatchingRuleAssertion ::= SEQUENCE {
                ( byte ) 0x81,
                0x02, //   matchingRule    [1] MatchingRuleId OPTIONAL,
                'c', 'n',
                ( byte ) 0x82,
                0x13, //    type            [2] AttributeDescription OPTIONAL,
                '1', '.', '2', '.', '8', '4', '0', '.', '4', '8', '0', '1', '8', '.', '1', '.', '2', '.', '2',
                ( byte ) 0x83,
                0x03, //    matchValue      [3] AssertionValue,
                'a', 'o', 'k',
                //    dnAttributes    [4] BOOLEAN DEFAULT FALSE  }
                ( byte ) 0x84, 0x01, ( byte ) 0xFF, 0x30,
                0x15, // attributes      AttributeDescriptionList }
                0x04, 0x05, 'a', 't', 't', 'r', '0', 0x04, 0x05, 'a', 't', 't', 'r', '1', 0x04, 0x05, 'a', 't', 't',
                'r', '2' } );

        String decodedPdu = Strings.dumpBytes(stream.array());
        stream.flip();

        // Allocate a BindRequest Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            de.printStackTrace();
            fail( de.getMessage() );
        }

        SearchRequest searchRequest = ( ( LdapMessageContainer ) ldapMessageContainer ).getSearchRequest();

        assertEquals( 1, searchRequest.getMessageId() );
        assertEquals( "dc=example,dc=com", searchRequest.getBase().toString() );
        assertEquals( SearchScope.OBJECT, searchRequest.getScope() );
        assertEquals( AliasDerefMode.DEREF_FINDING_BASE_OBJ, searchRequest.getDerefAliases() );
        assertEquals( 2, searchRequest.getSizeLimit() );
        assertEquals( 3, searchRequest.getTimeLimit() );
        assertEquals( true, searchRequest.getTypesOnly() );

        // The attributes
        List<String> attributes = searchRequest.getAttributes();

        for ( String attribute : attributes )
        {
            assertNotNull( attribute );
        }

        // Check the encoding
        // We won't check the whole PDU, as it may differs because
        // attributes may have been reordered
        try
        {
            ByteBuffer bb = encoder.encodeMessage( searchRequest );

            // Check the length
            assertEquals( 0x63, bb.limit() );

            String encodedPdu = Strings.dumpBytes(bb.array());

            assertEquals( encodedPdu.substring( 0, 0x56 ), decodedPdu.substring( 0, 0x56 ) );
        }
        catch ( EncoderException ee )
        {
            ee.printStackTrace();
            fail( ee.getMessage() );
        }
    }


    /**
     * Test the decoding of a SearchRequest with an empty extensible match
     */
    @Test
    public void testDecodeSearchRequestEmptyExtensibleMatch()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x3B, 0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x36, // baseObject LDAPDN,
                0x04, 0x1F, 'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e',
                'x', 'a', 'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03,
                0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x00, 0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and an
     * empty matching rule
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchEmptyMatchingRule()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x3D, 0x02,
                0x01,
                0x04, // messageID
                0x63, 0x38,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x02, ( byte ) 0x81, 0x00, // matchingRule    [1] MatchingRuleId OPTIONAL,
                0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and an
     * empty type
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchEmptyType()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x3D, 0x02,
                0x01,
                0x04, // messageID
                0x63, 0x38,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x02, ( byte ) 0x82, 0x00, //    type            [2] AttributeDescription OPTIONAL
                0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and an
     * empty matchValue
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchEmptyMatchValue()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x43,
                0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x3E,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x08, ( byte ) 0x81, 0x04, 't', 'e',
                's', 't', ( byte ) 0x83, 0x00, //    matchValue      [3] AssertionValue,
                0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            de.printStackTrace();
            fail( de.getMessage() );
        }

        SearchRequest searchRequest = ( ( LdapMessageContainer ) ldapMessageContainer ).getSearchRequest();

        assertEquals( 4, searchRequest.getMessageId() );
        assertEquals( "uid=akarasulu,dc=example,dc=com", searchRequest.getBase().toString() );
        assertEquals( SearchScope.ONELEVEL, searchRequest.getScope() );
        assertEquals( AliasDerefMode.DEREF_ALWAYS, searchRequest.getDerefAliases() );
        assertEquals( 0, searchRequest.getSizeLimit() );
        assertEquals( 0, searchRequest.getTimeLimit() );
        assertEquals( true, searchRequest.getTypesOnly() );

        // Extended
        Filter filter = ( (org.apache.directory.shared.ldap.codec.message.SearchRequestImpl) searchRequest ).getCurrentFilter();
        ExtensibleMatchFilter extensibleMatchFilter = ( ExtensibleMatchFilter ) filter;
        assertNotNull( extensibleMatchFilter );

        assertEquals( "test", extensibleMatchFilter.getMatchingRule() );
        assertNull( extensibleMatchFilter.getType() );
        assertNull( extensibleMatchFilter.getMatchValue().get() );
        assertFalse( extensibleMatchFilter.isDnAttributes() );

        List<String> attributes = searchRequest.getAttributes();

        assertEquals( 0, attributes.size() );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and an
     * matching rule and an empty type
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchMatchingRuleEmptyType()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x43,
                0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x3E,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x08, ( byte ) 0x81, 0x04, 't', 'e',
                's', 't', ( byte ) 0x82, 0x00, //    type            [2] AttributeDescription OPTIONAL,
                0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and an
     * matching rule and an empty dnAttributes
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchDnAttributesEmptyType()
    {
        byte[] asn1BER = new byte[]
            {
                0x30,
                0x60, // LDAPMessage ::= SEQUENCE {
                0x02,
                0x01,
                0x01, //   messageID       MessageID,
                0x63,
                0x5B, //   protocolOp      CHOICE {
                //     searchRequest   SearchRequest,
                //
                // SearchRequest ::= [APPLICATION 3] SEQUENCE {
                0x04,
                0x11, //   baseObject      LDAPDN, (dc=example,dc=com)
                'd', 'c', '=', 'e', 'x', 'a', 'm', 'p',
                'l',
                'e',
                ',',
                'd',
                'c',
                '=',
                'c',
                'o',
                'm',
                //   scope           ENUMERATED {
                0x0A,
                0x01,
                0x00, //      baseObject              (0), ...
                //   derefAliases    ENUMERATED {
                0x0A,
                0x01,
                0x02, //     derefFindingBaseObj     (2),...
                0x02,
                0x01,
                0x02, //   sizeLimit       INTEGER (0 .. maxInt), (2)
                0x02,
                0x01,
                0x03, //   timeLimit       INTEGER (0 .. maxInt), (3)
                0x01,
                0x01,
                ( byte ) 0xFF, //   typesOnly       BOOLEAN, (true)
                ( byte ) 0xA9,
                0x20, //   filter          Filter,
                //
                // Filter ::= CHOICE {
                //   extensibleMatch [9] MatchingRuleAssertion }
                //
                // MatchingRuleAssertion ::= SEQUENCE {
                ( byte ) 0x81,
                0x02, //   matchingRule    [1] MatchingRuleId OPTIONAL,
                'c', 'n',
                ( byte ) 0x82,
                0x13, //    type            [2] AttributeDescription OPTIONAL,
                '1', '.', '2', '.', '8', '4', '0', '.', '4', '8', '0', '1', '8', '.', '1', '.', '2', '.', '2',
                ( byte ) 0x83,
                0x03, //    matchValue      [3] AssertionValue,
                'a', 'o', 'k',
                //    dnAttributes    [4] BOOLEAN DEFAULT FALSE  }
                ( byte ) 0x84, 0x00, 0x30,
                0x15, // attributes      AttributeDescriptionList }
                0x04, 0x05, 'a', 't', 't', 'r', '0', 0x04, 0x05, 'a', 't', 't', 'r', '1', 0x04, 0x05, 'a', 't', 't',
                'r', '2' };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and a
     * matching rule and nothing else
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchMatchingRuleAlone()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x41,
                0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x3C,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x06, ( byte ) 0x81, 0x04, 't', 'e',
                's', 't', 0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and a type
     * and nothing else
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchTypeAlone()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x43,
                0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x3E,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x06, ( byte ) 0x82, 0x04, 't', 'e',
                's', 't', 0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            assertTrue( true );
            return;
        }

        fail( "We should not reach this point" );
    }


    /**
     * Test the decoding of a SearchRequest with an extensible match and a match
     * Value and nothing else
     */
    @Test
    public void testDecodeSearchRequestExtensibleMatchMatchValueAlone()
    {
        byte[] asn1BER = new byte[]
            { 0x30, 0x43,
                0x02,
                0x01,
                0x04, // messageID
                0x63,
                0x3E,
                0x04,
                0x1F, // baseObject LDAPDN,
                'u', 'i', 'd', '=', 'a', 'k', 'a', 'r', 'a', 's', 'u', 'l', 'u', ',', 'd', 'c', '=', 'e', 'x', 'a',
                'm', 'p', 'l', 'e', ',', 'd', 'c', '=', 'c', 'o', 'm', 0x0A, 0x01, 0x01, 0x0A, 0x01, 0x03, 0x02, 0x01,
                0x00, 0x02, 0x01, 0x00, 0x01, 0x01, ( byte ) 0xFF, ( byte ) 0xA9, 0x06, ( byte ) 0x83, 0x04, 't', 'e',
                's', 't', 0x30, 0x02, // AttributeDescriptionList ::= SEQUENCE OF AttributeDescription
                0x04, 0x00 };

        Asn1Decoder ldapDecoder = new Asn1Decoder();

        ByteBuffer stream = ByteBuffer.allocate( asn1BER.length );
        stream.put( asn1BER );
        stream.flip();

        // Allocate a LdapMessage Container
        Asn1Container ldapMessageContainer = new LdapMessageContainer();

        // Decode a SearchRequest message
        try
        {
            ldapDecoder.decode( stream, ldapMessageContainer );
        }
        catch ( DecoderException de )
        {
            fail( de.getMessage() );
        }

        SearchRequest searchRequest = ( ( LdapMessageContainer ) ldapMessageContainer ).getSearchRequest();

        assertEquals( 4, searchRequest.getMessageId() );
        assertEquals( "uid=akarasulu,dc=example,dc=com", searchRequest.getBase().toString() );
        assertEquals( SearchScope.ONELEVEL, searchRequest.getScope() );
        assertEquals( AliasDerefMode.DEREF_ALWAYS, searchRequest.getDerefAliases() );
        assertEquals( 0, searchRequest.getSizeLimit() );
        assertEquals( 0, searchRequest.getTimeLimit() );
        assertEquals( true, searchRequest.getTypesOnly() );

        // Extended
        Filter filter = ( (org.apache.directory.shared.ldap.codec.message.SearchRequestImpl) searchRequest ).getCurrentFilter();
        ExtensibleMatchFilter extensibleMatchFilter = ( ExtensibleMatchFilter ) filter;
        assertNotNull( extensibleMatchFilter );

        assertNull( extensibleMatchFilter.getMatchingRule() );
        assertNull( extensibleMatchFilter.getType() );
        assertEquals( "test", extensibleMatchFilter.getMatchValue().getString() );
        assertFalse( extensibleMatchFilter.isDnAttributes() );

        List<String> attributes = searchRequest.getAttributes();

        assertEquals( 0, attributes.size() );
    }
}