com.lambdaworks.redis.resource.FuturesTest.java Source code

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Here is the source code for com.lambdaworks.redis.resource.FuturesTest.java

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/*
 * Copyright 2011-2016 the original author or authors.
 *
 * 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.lambdaworks.redis.resource;

import static com.google.code.tempusfugit.temporal.Duration.seconds;
import static com.google.code.tempusfugit.temporal.Timeout.timeout;
import static org.assertj.core.api.Assertions.assertThat;

import org.junit.Test;

import com.google.code.tempusfugit.temporal.Condition;
import com.google.code.tempusfugit.temporal.WaitFor;

import io.netty.util.concurrent.DefaultPromise;
import io.netty.util.concurrent.GlobalEventExecutor;
import io.netty.util.concurrent.ImmediateEventExecutor;
import io.netty.util.concurrent.Promise;

/**
 * @author Mark Paluch
 */
public class FuturesTest {

    @Test(expected = IllegalArgumentException.class)
    public void testPromise() throws Exception {
        new Futures.PromiseAggregator(null);
    }

    @Test(expected = IllegalStateException.class)
    public void notArmed() throws Exception {
        Futures.PromiseAggregator<Boolean, Promise<Boolean>> sut = new Futures.PromiseAggregator<>(
                new DefaultPromise<>(ImmediateEventExecutor.INSTANCE));
        sut.add(new DefaultPromise<>(ImmediateEventExecutor.INSTANCE));
    }

    @Test(expected = IllegalStateException.class)
    public void expectAfterArmed() throws Exception {
        Futures.PromiseAggregator<Boolean, Promise<Boolean>> sut = new Futures.PromiseAggregator<>(
                new DefaultPromise<>(ImmediateEventExecutor.INSTANCE));
        sut.arm();

        sut.expectMore(1);
    }

    @Test(expected = IllegalStateException.class)
    public void armTwice() throws Exception {
        Futures.PromiseAggregator<Boolean, Promise<Boolean>> sut = new Futures.PromiseAggregator<>(
                new DefaultPromise<>(ImmediateEventExecutor.INSTANCE));
        sut.arm();
        sut.arm();
    }

    @Test
    public void regularUse() throws Exception {
        final DefaultPromise<Boolean> target = new DefaultPromise<>(GlobalEventExecutor.INSTANCE);
        Futures.PromiseAggregator<Boolean, Promise<Boolean>> sut = new Futures.PromiseAggregator<>(target);

        sut.expectMore(1);
        sut.arm();
        DefaultPromise<Boolean> part = new DefaultPromise<>(GlobalEventExecutor.INSTANCE);
        sut.add(part);

        assertThat(target.isDone()).isFalse();

        part.setSuccess(true);

        WaitFor.waitOrTimeout(new Condition() {
            @Override
            public boolean isSatisfied() {
                return target.isDone();
            }
        }, timeout(seconds(5)));

        assertThat(target.isDone()).isTrue();
    }
}