produtos/pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>br.com.matheus.maven</groupId>
  <artifactId>produtos</artifactId>
  <packaging>jar</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>produtos</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>

    <dependency>
        <groupId>com.thoughtworks.xstream</groupId>
        <artifactId>xstream</artifactId>
        <version>1.4.8</version>
    </dependency>

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>5.4.0.Final</version>
    </dependency>
  </dependencies>

  <build>
      <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-pmd-plugin</artifactId>
            <version>3.8</version>
            <executions>
                <execution>
                    <phase>verify</phase>
                    <goals>
                        <goal>check</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
        <plugin>
          <groupId>org.jacoco</groupId>
          <artifactId>jacoco-maven-plugin</artifactId>
          <version>0.7.6.201602180812</version>
          <executions>
              <execution>
                  <goals>
                      <goal>prepare-agent</goal>
                      <goal>report</goal>
                  </goals>
              </execution>
          </executions>
        </plugin>
      </plugins>
  </build>
</project>

ProdutoTeste.java

package br.com.matheus.maven;

import org.junit.Test;
import static org.junit.Assert.assertEquals;

public class ProdutoTeste {

    @Test
    protected void verificaPrecoComImposto() throws Throwable {
        String nome = "juquinha";
        double preco = 0.10;
        Produto bala = new Produto("juquinha", 0.10);
        assertEquals(0.11,bala.getPrecoComImposto(),0.00001);
        assertEquals(nome,bala.getNome());
        assertEquals(preco,bala.getPreco(),0);

    }
}

Produto.java

package br.com.matheus.maven;

public class Produto {
    private final String nome;
    private final double preco;

    public Produto(String nome, double preco) {
        super();
        this.nome = nome;
        this.preco = preco;
    }

    public String getNome() {
        return nome;
    }

    public double getPreco() {
        return preco;
    }

    public double getPrecoComImposto() {
        return preco * 1.1;
    }
}