Play Framework/Scala example source code file (StringChunksJava8Test.java)

This example Play Framework source code file (StringChunksJava8Test.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Play Framework (and Scala) source code examples by using tags.

All credit for the original source code belongs to Play Framework; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Play Framework tags/keywords

api, chunks, countdownlatch, exception, iterate, lib, library, mvc, play, play framework, seconds, stringchunksjava8test, test, testchannel

The StringChunksJava8Test.java Play Framework example source code

/*
 * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
 */
package play.mvc;

import java.util.ArrayList;
import java.util.concurrent.CountDownLatch;
import org.junit.Test;
import play.api.libs.iteratee.TestChannel;
import play.libs.F;
import play.mvc.Results.Chunks;
import play.mvc.Results.StringChunks;

import static java.util.concurrent.TimeUnit.SECONDS;
import static org.junit.Assert.assertTrue;

public class StringChunksJava8Test {

    @Test
    public void testWhenReadyFactory() throws Exception {
        final TestChannel<String> testChannel = new TestChannel<String>();
        final Chunks.Out<String> testOut = new Chunks.Out<String>(testChannel, new ArrayList<F.Callback0>());
        final CountDownLatch ready = new CountDownLatch(1);
        Chunks<String> chunks = StringChunks.whenReady(out -> {
            ready.countDown();
            out.write("a");
            out.write("b");
            out.close();
        });
        chunks.onReady(testOut);

        assertTrue("StringChunks.onReady callback was not invoked", ready.await(1, SECONDS));
        testChannel.expect("a");
        testChannel.expect("b");
        testChannel.expectEOF();
        testChannel.expectEnd();
        testChannel.expectEmpty();
    }
}