model.setArtifactId(artifactId);
            model.setVersion(version);
            model.setBuild(new Build());
            project = new MavenProject(model);
        }

        public ProjectBuilder setGroupId(String groupId) {
            project.setGroupId(groupId);
            return this;
        }

        public ProjectBuilder setArtifactId(String artifactId) {

            model.setArtifactId(artifactId);
            model.setVersion(version);
            model.setBuild(new Build());
            project = new MavenProject(model);
        }

        public ProjectBuilder setGroupId(String groupId) {
            project.setGroupId(groupId);
            return this;
        }

        public ProjectBuilder setArtifactId(String artifactId) {

        plugin.setGroupId(groupId);
        plugin.setArtifactId(artifactId);
        plugin.setVersion(version);
        return plugin;
    }

    private Extension createExtension(String groupId, String artifactId, String version) {
        Extension extension = new Extension();
        extension.setGroupId(groupId);
        extension.setArtifactId(artifactId);
        extension.setVersion(version);

        try {
            PluginPrefixResult result = pluginPrefixResolver.resolve(request);

            Plugin plugin = new Plugin();
            plugin.setGroupId(result.getGroupId());
            plugin.setArtifactId(result.getArtifactId());

            return plugin;
        } catch (NoPluginFoundForPrefixException e) {
            return null;
        }
    }

    @Override

    void setUp() {
        Dependency dependency1 = new Dependency();
        dependency1.setArtifactId("dep1");
        Dependency dependency2 = new Dependency();
        dependency2.setArtifactId("dep2");

        project = new Project();
        project.setModelVersion("4.0.0");
        project.setGroupId("org.apache.maven");
        project.setArtifactId("maven-core");
        project.setName("Maven");

    public PluginDescriptor() {}

    public PluginDescriptor(PluginDescriptor original) {
        this.setGroupId(original.getGroupId());
        this.setArtifactId(original.getArtifactId());
        this.setVersion(original.getVersion());
        this.setGoalPrefix(original.getGoalPrefix());
        this.setInheritedByDefault(original.isInheritedByDefault());

            // groupId
            // artifactId
            // version
            // goal
            //
            plugin = new Plugin();
            plugin.setGroupId(tok[0]);
            plugin.setArtifactId(tok[1]);
            plugin.setVersion(tok[2]);
            goal.append(tok[3]);

            // This won't be valid, but it constructs something easy to read in the error message

    @Override
    public void setGroupId(String groupId) {
        artifact.setGroupId(groupId);
    }

    /** {@inheritDoc} */
    @Override
    public void setArtifactId(String artifactId) {
        artifact.setArtifactId(artifactId);
    }

    /** {@inheritDoc} */
    @Override
    public boolean isSnapshot() {
        return artifact.isSnapshot();
    }

    /** {@inheritDoc} */

        dependency.setArtifactId(artifactId);
        dependency.setVersion(version);
        dependency.setType("jar");
        dependency.setScope("compile");

        return factory.createDependencyArtifact(dependency);
    }

    private MojoExecution newMojoExecution() {
        PluginDescriptor pd = new PluginDescriptor();
        pd.setArtifactId("my-plugin");

    void mergeDifferentGAV() throws Exception {
        // merge implicitly assumes that merge is only called on the same GAV and does not perform any validation here!
        Metadata source = new Metadata();
        source.setArtifactId("source-artifact");
        source.setGroupId("source-group");
        source.setVersion("2.0");
        assertFalse(target.merge(source));
        assertEquals("myArtifact", target.getArtifactId());