// Copyright (C) 2015 The Android Open Source Project
//
// Licensed 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 com.ericsson.gerrit.plugins.heartbeat;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import com.google.gerrit.extensions.registration.DynamicItem;
import com.google.gerrit.server.events.EventDispatcher;
import java.util.concurrent.TimeUnit;
import org.junit.Before;
import org.junit.Test;

public class HeartbeatDaemonTest {
  private EventDispatcher eventDispatcherMock;
  private HeartbeatDaemon heartbeatDaemon;

  @SuppressWarnings("unchecked")
  @Before
  public void setUp() throws Exception {
    eventDispatcherMock = mock(EventDispatcher.class);
    DynamicItem<EventDispatcher> dynamicEventDispatcherMock = mock(DynamicItem.class);
    when(dynamicEventDispatcherMock.get()).thenReturn(eventDispatcherMock);
    HeartbeatConfig heartbeatConfigMock = mock(HeartbeatConfig.class);
    when(heartbeatConfigMock.getDelay()).thenReturn(1);
    heartbeatDaemon = new HeartbeatDaemon(dynamicEventDispatcherMock, heartbeatConfigMock);
  }

  @Test
  public void thatDaemonSendsHeartbeatEvents() throws Exception {
    heartbeatDaemon.start();
    TimeUnit.MILLISECONDS.sleep(500);
    verify(eventDispatcherMock, atLeastOnce()).postEvent(any(HeartbeatEvent.class));
    heartbeatDaemon.stop();
  }
}