assertEquals("image/jpeg", jpgMime);

            // Both htm and html should map to text/html
            String htmMime = mimeMap.getMimeType("htm");
            String htmlMime = mimeMap.getMimeType("html");
            assertEquals(htmMime, htmlMime);
            assertEquals("text/html", htmMime);
        }

        @Test
        @DisplayName("Should handle binary file extensions")