@Test
  public void testGet() throws MojoExecutionException {
    List<File> modules = Arrays.asList(new File("file1.erl", "file2.beam"));
    String attribute = "attribute";

    GetAttributesScript script = new GetAttributesScript(modules, attribute);
    String expression = script.get();
    assertNotNull(expression);
    assertFalse(expression.isEmpty());
    assertFalse(expression.contains("%s"));
  }