android/arch/paging/TestExecutor.java

/*
 * Copyright (C) 2017 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 android.arch.paging;

import android.support.annotation.NonNull;

import java.util.LinkedList;
import java.util.Queue;
import java.util.concurrent.Executor;

public class TestExecutor implements Executor {
    private Queue<Runnable> mTasks = new LinkedList<>();

    @Override
    public void execute(@NonNull Runnable command) {
        mTasks.add(command);
    }

    boolean executeAll() {
        boolean consumed = !mTasks.isEmpty();
        Runnable task;
        while ((task = mTasks.poll()) != null) {
            task.run();
        }
        return consumed;
    }
}