/*
 * 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.killvm.agent.internal;

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;

import java.util.SortedMap;
import java.util.TreeMap;

import org.junit.Test;

import com.redhat.thermostat.commands.model.AgentRequest;
import com.redhat.thermostat.commands.model.WebSocketResponse;
import com.redhat.thermostat.commands.model.WebSocketResponse.ResponseType;
import com.redhat.thermostat.service.process.ProcessHandler;

public class KillVmReceiverTest {

    @Test
    public void receiverReturnsOk() {
        ProcessHandler proc = mock(ProcessHandler.class);
        KillVmReceiver receiver = new KillVmReceiver();
        receiver.bindProcessService(proc);
        SortedMap<String, String> params = new TreeMap<>();
        params.put("vm-pid", "12345");
        AgentRequest req = new AgentRequest(322, KillVmReceiver.ACTION_NAME, "some_systemId", "some_jvmId", params);
        WebSocketResponse response = receiver.receive(req);
        assertEquals(ResponseType.OK, response.getResponseType());
        assertEquals(322, response.getSequenceId());
    }
    
    @Test
    public void receiverReturnsErrorNoPid() {
        ProcessHandler proc = mock(ProcessHandler.class);
        KillVmReceiver receiver = new KillVmReceiver();
        receiver.bindProcessService(proc);
        SortedMap<String, String> params = new TreeMap<>();
        AgentRequest req = new AgentRequest(-1, KillVmReceiver.ACTION_NAME, "some_systemId", "some_jvmId", params);
        WebSocketResponse response = receiver.receive(req);
        assertEquals(ResponseType.ERROR, response.getResponseType());
        assertEquals(-1, response.getSequenceId());
    }
    
    @Test
    public void receiverReturnsErrorBadPid() {
        ProcessHandler proc = mock(ProcessHandler.class);
        KillVmReceiver receiver = new KillVmReceiver();
        receiver.bindProcessService(proc);
        SortedMap<String, String> params = new TreeMap<>();
        params.put("vm-pid", "hi");
        AgentRequest req = new AgentRequest(211, KillVmReceiver.ACTION_NAME, "some_systemId", "some_jvmId", params);
        WebSocketResponse response = receiver.receive(req);
        assertEquals(ResponseType.ERROR, response.getResponseType());
        assertEquals(211, response.getSequenceId());
    }

    @Test
    public void receiverReturnsErrorNoProcessHandler() {
        KillVmReceiver receiver = new KillVmReceiver();
        SortedMap<String, String> params = new TreeMap<>();
        AgentRequest req = new AgentRequest(11, KillVmReceiver.ACTION_NAME, "some_systemId", "some_jvmId", params);
        WebSocketResponse response = receiver.receive(req);
        assertEquals(ResponseType.ERROR, response.getResponseType());
        assertEquals(11, response.getSequenceId());
    }

    /**
     * The expected action is kill_vm. If invoked via a different one, we
     * expect an error response.
     */
    @Test
    public void receiverReturnsErrorWhenBadAction() {
        String unexpectedActionName = "foo-bar";
        KillVmReceiver receiver = new KillVmReceiver();
        SortedMap<String, String> params = new TreeMap<>();
        AgentRequest req = new AgentRequest(13, unexpectedActionName, "some_systemId", "some_jvmId", params);
        WebSocketResponse response = receiver.receive(req);
        assertEquals(ResponseType.ERROR, response.getResponseType());
        assertEquals(13, response.getSequenceId());
    }
}