google-nomulus/javatests/google/registry/testing/FakeClock.java
Justine Tunney 5012893c1d mv com/google/domain/registry google/registry
This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.
2016-05-13 18:55:08 -04:00

69 lines
2.2 KiB
Java

// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
//
// 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.google.domain.registry.testing;
import static com.google.domain.registry.util.DateTimeUtils.START_OF_TIME;
import static org.joda.time.DateTimeZone.UTC;
import static org.joda.time.Duration.millis;
import com.google.domain.registry.util.Clock;
import org.joda.time.DateTime;
import org.joda.time.ReadableDuration;
import org.joda.time.ReadableInstant;
import java.util.concurrent.atomic.AtomicLong;
import javax.annotation.concurrent.ThreadSafe;
/** A mock clock for testing purposes that supports telling, setting, and advancing the time. */
@ThreadSafe
public final class FakeClock implements Clock {
// Clock isn't a thread synchronization primitive, but tests involving
// threads should see a consistent flow.
private final AtomicLong currentTimeMillis = new AtomicLong();
/** Creates a FakeClock that starts at START_OF_TIME. */
public FakeClock() {
this(START_OF_TIME);
}
/** Creates a FakeClock initialized to a specific time. */
public FakeClock(ReadableInstant startTime) {
setTo(startTime);
}
/** Returns the current time. */
@Override
public DateTime nowUtc() {
return new DateTime(currentTimeMillis.get(), UTC);
}
/** Advances clock by one millisecond. */
public void advanceOneMilli() {
advanceBy(millis(1));
}
/** Advances clock by some duration. */
public void advanceBy(ReadableDuration duration) {
currentTimeMillis.addAndGet(duration.getMillis());
}
/** Sets the time to the specified instant. */
public void setTo(ReadableInstant time) {
currentTimeMillis.set(time.getMillis());
}
}