package com.github.dockerjava.cmd;

import com.github.dockerjava.api.command.CreateContainerResponse;

import org.junit.Test;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import java.security.SecureRandom;

import java.util.concurrent.TimeUnit;

import static org.hamcrest.MatcherAssert.assertThat;

import static org.hamcrest.Matchers.equalTo;

public class ResizeContainerCmdIT extends CmdIT {

private static final Logger LOG = LoggerFactory.getLogger(ResizeContainerCmdIT.class);

private static final int TTY_HEIGHT = 30;

private static final int TTY_WIDTH = 120;

@Test

public void resizeContainerTtyTest() {

String containerName = "generated_" + new SecureRandom().nextInt();

// wait until tty size changed to target size

CreateContainerResponse container = dockerRule.getClient().createContainerCmd("busybox").withUser("root")

.withCmd("sh", "-c", String.format("until stty size | grep '%d %d'; do : ; done", TTY_HEIGHT, TTY_WIDTH))

.withName(containerName).withTty(true).withStdinOpen(true).exec();

dockerRule.getClient().startContainerCmd(container.getId()).exec();

dockerRule.getClient().resizeContainerCmd(container.getId()).withSize(TTY_HEIGHT, TTY_WIDTH).exec();

int exitCode = dockerRule.getClient().waitContainerCmd(container.getId()).start()

.awaitStatusCode(10, TimeUnit.SECONDS);

LOG.info("Container exit code: {}", exitCode);

assertThat(exitCode, equalTo(0));

}

}