code: @Test public void testIsLanguageDirectlySupportedByThisApplication(){
    when(ninjaProperties.getOrDie(NinjaConstant.applicationCookiePrefix)).thenReturn("NINJA_TEST");
    when(ninjaProperties.get(NinjaConstant.applicationLanguages)).thenReturn("en");
    Lang lang=new LangImpl(ninjaProperties);
    assertTrue(lang.isLanguageDirectlySupportedByThisApplication("en"));
    assertFalse(lang.isLanguageDirectlySupportedByThisApplication("de"));
    when(ninjaProperties.get(NinjaConstant.applicationLanguages)).thenReturn("en, de, se");
    assertTrue(lang.isLanguageDirectlySupportedByThisApplication("en"));
    assertTrue(lang.isLanguageDirectlySupportedByThisApplication("de"));
    assertTrue(lang.isLanguageDirectlySupportedByThisApplication("se"));
    assertFalse(lang.isLanguageDirectlySupportedByThisApplication("tk"));
  }
  