code:     public void testContainsExpressionIsFalse() throws Exception {
          // given
          String anExpression = "foo";
  
          // when
          boolean actual = ComponentUtils.containsExpression(anExpression);
  
          // then
          assertFalse(actual);
      }
  }
  
  class MockConfigurationProvider implements ConfigurationProvider {
  
      public void destroy() {
      }
  
      public void init(Configuration configuration) throws ConfigurationException {
      }
  
      public boolean needsReload() {
          return false;
      }
  
      public void loadPackages() throws ConfigurationException {
      }
  
      public void register(ContainerBuilder builder, LocatableProperties props) throws ConfigurationException {
          builder.constant(StrutsConstants.STRUTS_TAG_ALTSYNTAX, "false");
      }
  