@Override
  public void execute(SensorContext context) {
    for (InputFile file : context.fileSystem().inputFiles(context.fileSystem().predicates().hasLanguages(Xoo.KEY))) {
      processFileHighlighting(file, context);
    }
  }
@Test
  public void testNoExecutionIfNoSyntaxFile() {
    DefaultInputFile inputFile = new TestInputFileBuilder("foo", "src/foo.xoo")
      .setLanguage("xoo")
      .setModuleBaseDir(baseDir.toPath())
      .build();
    context.fileSystem().add(inputFile);
    sensor.execute(context);
  }