@Test public void should_find_mime_type() throws Exception { assertThat(HTTP.getContentTypeFromExtension("test.js")) .isEqualTo(Optional.of("application/x-javascript")); assertThat(HTTP.getContentTypeFromExtension("html")).isEqualTo(Optional.of("text/html")); assertThat(HTTP.getContentTypeFromExtension("css")).isEqualTo(Optional.of("text/css")); }