modelMerger.mergePluginExecution( target, source, true, null );

        assertThat( target.getGoals(), contains( "first", "second", "third" ) );
    }

    @Test
    public void mergeGroupId()
    {
        Model target = new Model();
        target.setGroupId( "TARGET" );

        Model source = new Model();
        source.setGroupId( "SOURCE" );