/*
 * 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.
 */
package org.apache.samza.testUtils;

import org.apache.samza.util.Clock;

import java.time.Duration;

/**
 * An implementation of {@link Clock} that allows to advance the time by an arbitrary duration.
 * Used for testing.
 */
public class TestClock implements Clock {

  long currentTime = 1;

  public void advanceTime(Duration duration) {
    currentTime += duration.toMillis();
  }

  public void advanceTime(long millis) {
    currentTime += millis;
  }

  @Override
  public long currentTimeMillis() {
    return currentTime;
  }
}