@Test public void getContentTypeByExtensionForNotFound() { Assert.assertNull(HtmlUtil.getMimeByExtension("fff")); }
@Test public void getContentTypeByExtension() { Assert.assertEquals("image/gif", HtmlUtil.getMimeByExtension("gif")); }
@Test(expected = UnsupportedOperationException.class) public void getContentTypeByExtensionForNull() { HtmlUtil.getMimeByExtension(null); }