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/*
* Copyright (C) 2016, Google Inc.
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.junit.time;
import java.time.Duration;
import java.util.concurrent.TimeUnit;
import org.eclipse.jgit.util.time.MonotonicClock;
import org.eclipse.jgit.util.time.ProposedTimestamp;
/**
* Fake {@link org.eclipse.jgit.util.time.MonotonicClock} for testing code that
* uses Clock.
*
* @since 4.6
*/
public class MonotonicFakeClock implements MonotonicClock {
private long now = TimeUnit.SECONDS.toMicros(42);
/**
* Advance the time returned by future calls to {@link #propose()}.
*
* @param add
* amount of time to add; must be {@code > 0}.
* @param unit
* unit of {@code add}.
*/
public void tick(long add, TimeUnit unit) {
if (add <= 0) {
throw new IllegalArgumentException();
}
now += unit.toMillis(add);
}
/** {@inheritDoc} */
@Override
public ProposedTimestamp propose() {
long t = now++;
return new ProposedTimestamp() {
@Override
public long read(TimeUnit unit) {
return unit.convert(t, TimeUnit.MILLISECONDS);
}
@Override
public void blockUntil(Duration maxWait) {
// Nothing to do, since fake time does not go backwards.
}
};
}
}
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