/*
 * 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.jvm.overview.agent.internal.model;

import com.redhat.thermostat.common.portability.PortableProcess;
import com.redhat.thermostat.common.portability.PortableProcessFactory;
import com.redhat.thermostat.shared.config.OS;
import org.junit.Before;
import org.junit.Test;

import java.io.File;
import java.util.HashSet;
import java.util.Set;

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

public class VmNativeLibsExtractorImplTest {

    private PortableProcess procHelper = PortableProcessFactory.getInstance();

    @Before
    public void setup() {
        procHelper = PortableProcessFactory.getInstance();
    }

    @Test
    public void currentProcessTest() {
        final int pid = procHelper.getCurrentProcessPid();
        VmNativeLibsExtractorImpl extractor = new VmNativeLibsExtractorImpl(pid);
        checkLibs(extractor.getNativeLibs());
    }

    private void checkLibs(final String[] libArray) {
        assertNotNull(libArray);
        Set<String> libs = new HashSet<String>();
        for (String s : libArray) {
            File f = new File(s);
            libs.add(f.getName().toLowerCase());
        }
        if (OS.IS_WINDOWS) {
            assertTrue(libs.contains("jvm.dll"));
        } else if (OS.IS_MACOS) {
            assertTrue(libs.contains("libjvm.dylib"));
        } else {
            assertTrue(libs.contains("libjvm.so"));
        }
    }
}