Document-createComment-createTextNode.js

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function test_create(method, iface, nodeType, nodeName) {

  ["\u000b", "a -- b", "a-", "-b", null, undefined].forEach(function(value) {

    test(function() {

      var c = document[method](value);

      var expected = String(value);

      assert_true(c instanceof iface);

      assert_true(c instanceof CharacterData);

      assert_true(c instanceof Node);

      assert_equals(c.ownerDocument, document);

      assert_equals(c.data, expected, "data");

      assert_equals(c.nodeValue, expected, "nodeValue");

      assert_equals(c.textContent, expected, "textContent");

      assert_equals(c.length, expected.length);

      assert_equals(c.nodeType, nodeType);

      assert_equals(c.nodeName, nodeName);

      assert_equals(c.hasChildNodes(), false);

      assert_equals(c.childNodes.length, 0);

      assert_equals(c.firstChild, null);

      assert_equals(c.lastChild, null);

    }, method + "(" + format_value(value) + ")");

});