/*
 *  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.
 */

/**
* @author Vera Y. Petrashkova
*/

package org.apache.harmony.security.tests.java.security.cert;


import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.InputStream;
import java.security.cert.CRL;
import java.security.cert.CRLException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactorySpi;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.apache.harmony.security.tests.support.cert.MyCertificateFactorySpi;

import junit.framework.TestCase;

/**
 * Tests for <code>CertificateFactorySpi</code> class constructors and methods
 * 
 */

public class CertificateFactorySpiTest extends TestCase {
    /**
     * Constructor for CertStoreSpiTest.
     * 
     * @param arg0
     */
    public CertificateFactorySpiTest(String arg0) {
        super(arg0);
    }

    /**
     * Test for <code>CertificateFactorySpi</code> constructor 
     * Assertion: constructs CertificateFactorySpi
     */
    public void testCertificateFactorySpi01() throws CertificateException,
            CRLException {
        CertificateFactorySpi certFactorySpi = new extCertificateFactorySpi();
        ByteArrayInputStream bais = new ByteArrayInputStream(new byte[0]);
        try {
            certFactorySpi.engineGenerateCertPath(bais);
            fail("UnsupportedOperationException must be thrown");
        } catch (UnsupportedOperationException e) {
        }
        try {
            certFactorySpi.engineGenerateCertPath(bais, "");
            fail("UnsupportedOperationException must be thrown");
        } catch (UnsupportedOperationException e) {
        }
        try {
            List list = null;
            certFactorySpi.engineGenerateCertPath(list);
            fail("UnsupportedOperationException must be thrown");
        } catch (UnsupportedOperationException e) {
        }
        try {
            certFactorySpi.engineGetCertPathEncodings();
            fail("UnsupportedOperationException must be thrown");
        } catch (UnsupportedOperationException e) {
        }
        Certificate cc = certFactorySpi
                .engineGenerateCertificate(bais);
        assertNull("Not null Cerificate", cc);
        try {
            certFactorySpi.engineGenerateCertificate(null);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        Collection col = certFactorySpi
                .engineGenerateCertificates(bais);
        assertNull("Not null Collection", col);
        try {
            certFactorySpi.engineGenerateCertificates(null);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }

        CRL ccCRL = certFactorySpi.engineGenerateCRL(bais);
        assertNull("Not null CRL", ccCRL);
        try {
            certFactorySpi.engineGenerateCRL(null);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }

        Collection colCRL = certFactorySpi
                .engineGenerateCRLs(bais);
        assertNull("Not null CRL", colCRL);
        try {
            certFactorySpi.engineGenerateCRLs(null);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }
    }

    /**
     * Test for <code>CertificateFactorySpi</code> constructor 
     * Assertion: constructs CertificateFactorySpi
     */
    public void testCertificateFactorySpi02() throws CertificateException,
            CRLException {
        CertificateFactorySpi certFactorySpi = new MyCertificateFactorySpi();
        MyCertificateFactorySpi.putMode(true);
        ByteArrayInputStream bais = new ByteArrayInputStream(new byte[0]);
        DataInputStream dis = new DataInputStream(bais);
        try {
            certFactorySpi.engineGenerateCertPath(bais);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        certFactorySpi.engineGenerateCertPath(dis);
        try {
            certFactorySpi.engineGenerateCertPath(bais, "aa");
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        try {
            certFactorySpi.engineGenerateCertPath(dis, "");
            fail("IllegalArgumentException must be thrown");
        } catch (IllegalArgumentException e) {
        }
        certFactorySpi.engineGenerateCertPath(dis, "ss");

        try {
            certFactorySpi.engineGenerateCertificate(bais);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        try {
            certFactorySpi.engineGenerateCertificates(null);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        Certificate cert = certFactorySpi
                .engineGenerateCertificate(dis);
        assertNull("Result must be null", cert);
        Collection col = certFactorySpi
                .engineGenerateCertificates(dis);
        assertNull("Result must be null", col);

        try {
            certFactorySpi.engineGenerateCRL(bais);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }
        try {
            certFactorySpi.engineGenerateCRLs(null);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }
        CRL crl = certFactorySpi.engineGenerateCRL(dis);
        assertNull("Result must be null", crl);
        col = certFactorySpi.engineGenerateCRLs(dis);
        assertNull("Result must be null", col);

        List list = null;
        try { 
            certFactorySpi.engineGenerateCertPath(list);
            fail("NullPointerException must be thrown");
        } catch (NullPointerException e) {            
        }
        Iterator enc = certFactorySpi.engineGetCertPathEncodings();
        assertTrue("Incorrect Iterator", enc.hasNext());
    }
    
    /**
     * Test for <code>CertificateFactorySpi</code> constructor 
     * Assertion: constructs CertificateFactorySpi
     */
    public void testCertificateFactorySpi03() throws CertificateException,
            CRLException {
        CertificateFactorySpi certFactorySpi = new MyCertificateFactorySpi();
        MyCertificateFactorySpi.putMode(false);
        ByteArrayInputStream bais = new ByteArrayInputStream(new byte[0]);
        DataInputStream dis = new DataInputStream(bais);
        try {
            certFactorySpi.engineGenerateCertPath(bais);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        try {
            certFactorySpi.engineGenerateCertPath(dis);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        try {
            certFactorySpi.engineGenerateCertPath(bais, "aa");
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        certFactorySpi.engineGenerateCertPath(dis, "");
        certFactorySpi.engineGenerateCertPath(dis, "ss");

        try {
            certFactorySpi.engineGenerateCertificate(bais);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        try {
            certFactorySpi.engineGenerateCertificates(null);
            fail("CertificateException must be thrown");
        } catch (CertificateException e) {
        }
        Certificate cert = certFactorySpi
                .engineGenerateCertificate(dis);
        assertNull("Result must be null", cert);
        Collection col = certFactorySpi
                .engineGenerateCertificates(dis);
        assertNull("Result must be null", col);

        try {
            certFactorySpi.engineGenerateCRL(bais);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }
        try {
            certFactorySpi.engineGenerateCRLs(null);
            fail("CRLException must be thrown");
        } catch (CRLException e) {
        }
        CRL crl = certFactorySpi.engineGenerateCRL(dis);
        assertNull("Result must be null", crl);
        col = certFactorySpi.engineGenerateCRLs(dis);
        assertNull("Result must be null", col);

        List list = null;
        certFactorySpi.engineGenerateCertPath(list);
        Iterator enc = certFactorySpi.engineGetCertPathEncodings();
        assertFalse("Incorrect Iterator", enc.hasNext());
    }

    
    private static class extCertificateFactorySpi extends CertificateFactorySpi {
        public Certificate engineGenerateCertificate(InputStream inStream)
                throws CertificateException {
            if (inStream == null) {
                throw new CertificateException("InputStream null");
            }
            return null;
        }

        public Collection engineGenerateCertificates(InputStream inStream)
                throws CertificateException {
            if (inStream == null) {
                throw new CertificateException("InputStream null");
            }
            return null;
        }

        public CRL engineGenerateCRL(InputStream inStream) throws CRLException {
            if (inStream == null) {
                throw new CRLException("InputStream null");
            }
            return null;
        }

        public Collection engineGenerateCRLs(InputStream inStream)
                throws CRLException {
            if (inStream == null) {
                throw new CRLException("InputStream null");
            }
            return null;
        }
    }
}