@Test
public void testApply() {
HttpServletResponse response = new MockHttpServletResponse();
headers.apply(response);
assertTrue(response.containsHeader(headerName));
assertTrue(response.containsHeader(multivalueHeaderName));
assertFalse(response.containsHeader("Non-Existing-Header"));
}
/**
* Test method for {@link ch.entwine.weblounge.cache.impl.CacheableHttpServletResponseHeaders#containsHeader(java.lang.String)}.