AttachContainerCmdExecTest.java

package com.github.dockerjava.netty.exec;

import static java.util.concurrent.TimeUnit.SECONDS;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.isEmptyString;
import static org.hamcrest.Matchers.not;

import java.io.File;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.lang.reflect.Method;

import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

import com.github.dockerjava.api.command.CreateContainerResponse;
import com.github.dockerjava.api.command.InspectContainerResponse;
import com.github.dockerjava.api.model.Frame;
import com.github.dockerjava.api.model.StreamType;
import com.github.dockerjava.core.command.AttachContainerResultCallback;
import com.github.dockerjava.netty.AbstractNettyDockerClientTest;

@Test(groups = "integration")
public class AttachContainerCmdExecTest extends AbstractNettyDockerClientTest {

    @BeforeTest
    public void beforeTest() throws Exception {
        super.beforeTest();
    }

    @AfterTest
    public void afterTest() {
        super.afterTest();
    }

    @BeforeMethod
    public void beforeMethod(Method method) {
        super.beforeMethod(method);
    }

    @AfterMethod
    public void afterMethod(ITestResult result) {
        super.afterMethod(result);
    }

    @Test
    public void attachContainerWithoutTTY() throws Exception {

        String snippet = "hello world";

        CreateContainerResponse container = dockerClient.createContainerCmd("busybox").withCmd("echo", snippet)
                .withTty(false).exec();

        LOG.info("Created container: {}", container.toString());
        assertThat(container.getId(), not(isEmptyString()));

        dockerClient.startContainerCmd(container.getId()).exec();

        AttachContainerTestCallback callback = new AttachContainerTestCallback() {
            @Override
            public void onNext(Frame frame) {
                assertEquals(frame.getStreamType(), StreamType.STDOUT);
                super.onNext(frame);
            };
        };

        dockerClient.attachContainerCmd(container.getId()).withStdErr(true).withStdOut(true).withFollowStream(true)
                .withLogs(true).exec(callback).awaitCompletion(10, SECONDS);
        callback.close();

        assertThat(callback.toString(), containsString(snippet));
    }

    @Test
    public void attachContainerWithStdin() throws Exception {

        String snippet = "hello world";

        CreateContainerResponse container = dockerClient.createContainerCmd("busybox")
                .withCmd("/bin/sh", "-c", "sleep 1 && read line && echo $line")
                .withTty(false)
                .withStdinOpen(true)
                .exec();

        LOG.info("Created container: {}", container.toString());
        assertThat(container.getId(), not(isEmptyString()));

        dockerClient.startContainerCmd(container.getId()).exec();

        InspectContainerResponse inspectContainerResponse = dockerClient.inspectContainerCmd(container.getId()).exec();

        assertTrue(inspectContainerResponse.getState().getRunning());

        AttachContainerTestCallback callback = new AttachContainerTestCallback() {
            @Override
            public void onNext(Frame frame) {
                assertEquals(frame.getStreamType(), StreamType.STDOUT);
                super.onNext(frame);
            }
        };

        PipedOutputStream out = new PipedOutputStream();
        PipedInputStream in = new PipedInputStream(out);

        dockerClient.attachContainerCmd(container.getId())
                .withStdErr(true)
                .withStdOut(true)
                .withFollowStream(true)
                .withStdIn(in)
                .exec(callback);

        out.write((snippet + "\n").getBytes());
        out.flush();

        callback.awaitCompletion(15, SECONDS);
        callback.close();

        assertThat(callback.toString(), containsString(snippet));
    }

    @Test
    public void attachContainerWithTTY() throws Exception {

        File baseDir = new File(Thread.currentThread().getContextClassLoader()
                .getResource("attachContainerTestDockerfile").getFile());

        String imageId = buildImage(baseDir);

        CreateContainerResponse container = dockerClient.createContainerCmd(imageId).withTty(true).exec();

        LOG.info("Created container: {}", container.toString());
        assertThat(container.getId(), not(isEmptyString()));

        dockerClient.startContainerCmd(container.getId()).exec();

        AttachContainerTestCallback callback = new AttachContainerTestCallback() {
            @Override
            public void onNext(Frame frame) {
                assertEquals(frame.getStreamType(), StreamType.RAW);
                super.onNext(frame);
            };
        };

        dockerClient.attachContainerCmd(container.getId())
                .withStdErr(true)
                .withStdOut(true)
                .withFollowStream(true)
                .exec(callback)
                .awaitCompletion(10, SECONDS);
        callback.close();

        // HexDump.dump(collectFramesCallback.toString().getBytes(), 0, System.out, 0);

        assertThat(callback.toString(), containsString("stdout\r\nstderr"));
    }

    public static class AttachContainerTestCallback extends AttachContainerResultCallback {
        private StringBuffer log = new StringBuffer();

        @Override
        public void onNext(Frame item) {
            log.append(new String(item.getPayload()));
            super.onNext(item);
        }

        @Override
        public String toString() {
            return log.toString();
        }
    }
}