@Test
public void withBeanInitialization() throws Exception {
HttpServletRequest request = mock(HttpServletRequest.class);
given(request.getCharacterEncoding()).willReturn(null);
given(request.getAttribute(WebUtils.ERROR_REQUEST_URI_ATTRIBUTE)).willReturn(null);
given(request.getAttribute(FILTER_NAME + OncePerRequestFilter.ALREADY_FILTERED_SUFFIX))
.willReturn(null);
MockHttpServletResponse response = new MockHttpServletResponse();
FilterChain filterChain = mock(FilterChain.class);
CharacterEncodingFilter filter = new CharacterEncodingFilter();
filter.setEncoding(ENCODING);
filter.setBeanName(FILTER_NAME);
filter.setServletContext(new MockServletContext());
filter.doFilter(request, response, filterChain);
verify(request).setCharacterEncoding(ENCODING);
verify(request)
.setAttribute(FILTER_NAME + OncePerRequestFilter.ALREADY_FILTERED_SUFFIX, Boolean.TRUE);
verify(request).removeAttribute(FILTER_NAME + OncePerRequestFilter.ALREADY_FILTERED_SUFFIX);
verify(filterChain).doFilter(request, response);
}
