code: @Test public void testLoadingWorks(){
    MimeTypes mimeTypes=new MimeTypes(ninjaProperties);
    assertEquals("application/vnd.ms-cab-compressed",mimeTypes.getMimeType("superfilename.cab"));
    assertEquals("application/vndms-pkiseccat",mimeTypes.getMimeType("superfilename.cat"));
    assertEquals("text/x-c",mimeTypes.getMimeType("superfilename.cc"));
    assertEquals("application/clariscad",mimeTypes.getMimeType("superfilename.ccad"));
    assertEquals("application/custom",mimeTypes.getMimeType("superfilename.custom"));
  }
  