Build Docker image and run tests

In current . directory is your project which starts with root POM.

(including . at the end of next line)

$ sudo docker build --no-cache -t my-image:1 -f ./Dockerfile .
$ sudo docker run -it --rm my-image:1 /bin/sh

Run the command mvn test in the shell console of docker.

Dockerfile in current directory

FROM maven:3.5.3-jdk-8-alpine
COPY ./. /

The test

Location in current directory.

src/test/java/MyTest.java

Simple test waiting 3 seconds:

import org.junit.Test;

public class MyTest {
    @Test
    public void test() throws InterruptedException {
        Thread.sleep(3000L);
    }
}

POM

The pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>x</groupId>
    <artifactId>y</artifactId>
    <version>1.0</version>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>latest plugin version here</version>
            </plugin>
        </plugins>
    </build>

</project>