@Test
public void testClassNames() {
Document doc = Jsoup.parse("<div class=\"c1 c2\">C</div>");
Element div = doc.select("div").get(0);
assertEquals("c1 c2", div.className());
final Set<String> set1 = div.classNames();
final Object[] arr1 = set1.toArray();
assertTrue(arr1.length == 2);
assertEquals("c1", arr1[0]);
assertEquals("c2", arr1[1]);
// Changes to the set should not be reflected in the Elements getters
set1.add("c3");
assertTrue(2 == div.classNames().size());
assertEquals("c1 c2", div.className());
// Update the class names to a fresh set
final Set<String> newSet = new LinkedHashSet<String>(3);
newSet.addAll(set1);
newSet.add("c3");
div.classNames(newSet);
assertEquals("c1 c2 c3", div.className());
final Set<String> set2 = div.classNames();
final Object[] arr2 = set2.toArray();
assertTrue(arr2.length == 3);
assertEquals("c1", arr2[0]);
assertEquals("c2", arr2[1]);
assertEquals("c3", arr2[2]);
}
@Test
public void testClassUpdates() {
Document doc = Jsoup.parse("<div class='mellow yellow'></div>");
Element div = doc.select("div").first();
div.addClass("green");
assertEquals("mellow yellow green", div.className());
div.removeClass("red"); // noop
div.removeClass("yellow");
assertEquals("mellow green", div.className());
div.toggleClass("green").toggleClass("red");
assertEquals("mellow red", div.className());
}
@Test
public void testClassDomMethods() {
Document doc =
Jsoup.parse("<div><span class=' mellow yellow '>Hello <b>Yellow</b></span></div>");
List<Element> els = doc.getElementsByAttribute("class");
Element span = els.get(0);
assertEquals("mellow yellow", span.className());
assertTrue(span.hasClass("mellow"));
assertTrue(span.hasClass("yellow"));
Set<String> classes = span.classNames();
assertEquals(2, classes.size());
assertTrue(classes.contains("mellow"));
assertTrue(classes.contains("yellow"));
assertEquals("", doc.className());
classes = doc.classNames();
assertEquals(0, classes.size());
assertFalse(doc.hasClass("mellow"));
}