/*
 * Copyright 2012-2017 Red Hat, Inc.
 *
 * This file is part of Thermostat.
 *
 * Thermostat is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your
 * option) any later version.
 *
 * Thermostat is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Thermostat; see the file COPYING.  If not see
 * <http://www.gnu.org/licenses/>.
 *
 * Linking this code with other modules is making a combined work
 * based on this code.  Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this code give
 * you permission to link this code with independent modules to
 * produce an executable, regardless of the license terms of these
 * independent modules, and to copy and distribute the resulting
 * executable under terms of your choice, provided that you also
 * meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module
 * which is not derived from or based on this code.  If you modify
 * this code, you may extend this exception to your version of the
 * library, but you are not obligated to do so.  If you do not wish
 * to do so, delete this exception statement from your version.
 */

package com.redhat.thermostat.common.internal;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;

import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;

import org.junit.Test;

import com.redhat.thermostat.common.ssl.SslInitException;

public class KeyStoreProviderTest {

    @Test(expected=SslInitException.class)
    public void nonExistentFileThrowsException() throws SslInitException {
        File notThere = new File("/some/path/that/doesnt/exists");
        assertNull(KeyStoreProvider.getKeyStore(notThere, "ignored"));
    }
    
    @Test
    public void nullFileReturnsNull() throws SslInitException {
        assertNull(KeyStoreProvider.getKeyStore(null, "ignored"));
    }
    
    @Test(expected=SslInitException.class)
    public void existingFileWithWrongPwdThrowsException() throws SslInitException {
        File keystore = new File(this.getClass()
                .getResource("/test_ca.keystore").getFile());
        KeyStoreProvider.getKeyStore(keystore, "wrong password");
    }
    
    @Test
    public void existingFileWithCorrectPasswordWorks() throws SslInitException {
        File keystore = new File(decodeFilePath(this.getClass()
                .getResource("/test_ca.keystore")));
        assertNotNull("Should have been able to retrieve and load keystore", KeyStoreProvider.getKeyStore(keystore, "testpassword"));
    }

    private static String decodeFilePath(URL url) {
        try {
            // Spaces are encoded as %20 in URLs. Use URLDecoder.decode() so
            // as to handle cases like that.
            return URLDecoder.decode(url.getFile(), "UTF-8");
        } catch (UnsupportedEncodingException e) {
            throw new AssertionError("UTF-8 not supported, huh?");
        }
    }
}