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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=588683
+-->
+<head>
+  <title>Test for form attributes 1</title>
+  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=588683">Mozilla Bug 588683</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+/** Test for form attributes 1 **/
+
+/**
+ * All functions take an array of forms in first argument and an array of
+ * elements in second argument.
+ * Then, it returns an array containing an array of form and an array of array
+ * of elements. The array represent the form association with elements like this:
+ * [ [ form1, form2 ], [ [ elmt1ofForm1, elmt2ofForm2 ], [ elmtofForm2 ] ] ]
+ */
+
+/**
+ * test0a and test0b are testing the regular behavior of form ownership.
+ */
+function test0a(aForms, aElements)
+{
+  // <form><element></form>
+  // <form><element></form>
+  aForms[0].appendChild(aElements[0]);
+  aForms[1].appendChild(aElements[1]);
+
+  return [[aForms[0],aForms[1]],[[aElements[0]],[aElements[1]]]];
+}
+
+function test0b(aForms, aElements)
+{
+  // <form><element><form><element></form></form>
+  aForms[0].appendChild(aElements[0]);
+  aForms[0].appendChild(aForms[1]);
+  aForms[1].appendChild(aElements[1]);
+
+  return [[aForms[0],aForms[1]],[[aElements[0]],[aElements[1]]]];
+}
+
+/**
+ * This function test that, when an element is not a descendant of a form
+ * element and has @form set to a valid form id, it's form owner is the form
+ * which has the id.
+ */
+function test1(aForms, aElements)
+{
+  // <form id='f'></form><element id='f'>
+  aForms[0].id = 'f';
+  aElements[0].setAttribute('form', 'f');
+
+  return [[aForms[0]], [[aElements[0]]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id (not it's descendant), it's form
+ * owner is the form which has the id.
+ */
+function test2(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+
+  return [[aForms[0], aForms[1]], [[aElements[0]],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id (not it's descendant), then the
+ * form attribute is removed, it does not have a form owner.
+ */
+function test3(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aElements[0].removeAttribute('form');
+
+  return [[aForms[0], aForms[1]], [[],[aElements[0]]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id (not it's descendant), then the
+ * form's id attribute is removed, it does not have a form owner.
+ */
+function test4(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[0].removeAttribute('id');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to an invalid form id, then it does not have a form
+ * owner.
+ */
+function test5(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='foo'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'foo');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id (not it's descendant), then the
+ * form id attribute is changed to an invalid id, it does not have a form owner.
+ */
+function test6(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aElements[0].setAttribute('form', 'foo');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to an invalid form id, then the form id attribute
+ * is changed to a valid form id, it's form owner is the form which has this id.
+ */
+function test7(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='foo'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'foo');
+  aElements[0].setAttribute('form', 'f');
+
+  return [[aForms[0], aForms[1]], [[aElements[0]],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a list of ids containing one valid form, then
+ * it does not have a form owner.
+ */
+function test8(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f foo'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f foo');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a form id which is valid in a case insensitive
+ * way, then it does not have a form owner.
+ */
+function test9(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='F'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'F');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a form id which is not a valid id, then it's
+ * form owner is it does not have a form owner.
+ */
+function test10(aForms, aElements)
+{
+  // <form id='F'></form><form><element form='f'></form>
+  aForms[0].id = 'F';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a form id which is not a valid id, then it's
+ * form owner is it does not have a form owner.
+ */
+function test11(aForms, aElements)
+{
+  // <form id='foo bar'></form><form><element form='foo bar'></form>
+  aForms[0].id = 'foo bar';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'foo bar');
+
+  return [[aForms[0], aForms[1]], [[aElements[0]],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id and the form id change, then
+ * it does not have a form owner.
+ */
+function test12(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[0].id = 'foo';
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to an invalid form id and the form id change to a
+ * valid one, then it's form owner is the form which has the id.
+ */
+function test13(aForms, aElements)
+{
+  // <form id='foo'></form><form><element form='f'></form>
+  aForms[0].id = 'foo';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[0].id = 'f';
+
+  return [[aForms[0], aForms[1]], [[aElements[0]],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id and a form with the same id is
+ * inserted before in the tree, then it's form owner is the form which has the
+ * id.
+ */
+function test14(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[2].id = 'f';
+
+  document.getElementById('content').insertBefore(aForms[2], aForms[0]);
+
+  return [[aForms[0], aForms[1], aForms[2]], [[],[],[aElements[0]]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id and an element with the same id is
+ * inserted before in the tree, then it does not have a form owner.
+ */
+function test15(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aElements[1].id = 'f';
+
+  document.getElementById('content').insertBefore(aElements[1], aForms[0]);
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form
+ * element and has @form set to a valid form id and the form is removed from
+ * the tree, then it does not have a form owner.
+ */
+function test16(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  aElements[1].id = 'f';
+
+  document.getElementById('content').removeChild(aForms[0]);
+
+  return [[aForms[0], aForms[1]], [[],[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form element
+ * and has @form set to the empty string, it does not have a form owner.
+ */
+function test17(aForms, aElements)
+{
+  // <form><element form=''></form>
+  aForms[0].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', '');
+
+  return [[aForms[0]], [[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form element
+ * and has @form set to the empty string, it does not have a form owner even if
+ * it's parent has its id equals to the empty string.
+ */
+function test18(aForms, aElements)
+{
+  // <form id=''><element form=''></form>
+  aForms[0].id = '';
+  aForms[0].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', '');
+
+  return [[aForms[0]], [[]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form element
+ * and has @form set to a valid form id and the element is being moving inside
+ * it's parent, it's form owner will remain the form with the id.
+ */
+function test19(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'><element></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aForms[1].appendChild(aElements[1]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[1].appendChild(aElements[0]);
+
+  return [[aForms[0],aForms[1]],[[aElements[0]],[aElements[1]]]];
+}
+
+/**
+ * This function test that, when an element is a descendant of a form element
+ * and has @form set to a valid form id and the element is being moving inside
+ * another form, it's form owner will remain the form with the id.
+ */
+function test20(aForms, aElements)
+{
+  // <form id='f'></form><form><element form='f'><element></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aForms[1].appendChild(aElements[1]);
+  aElements[0].setAttribute('form', 'f');
+  aForms[2].appendChild(aElements[0]);
+
+  return [[aForms[0],aForms[1],aForms[2]],[[aElements[0]],[aElements[1]],[]]];
+}
+
+/**
+ * This function test that when removing a form, the elements with a @form set
+ * will be correctly removed from there form owner.
+ */
+function test21(aForms, aElements)
+{
+  // <form id='f'><form><form><element form='f'></form>
+  aForms[0].id = 'f';
+  aForms[1].appendChild(aElements[0]);
+  aElements[0].setAttribute('form', 'f');
+  document.getElementById('content').removeChild(aForms[1]);
+
+  return [[aForms[0]],[[]]];
+}
+
+var functions = [
+  test0a, test0b,
+  test1, test2, test3, test4, test5, test6, test7, test8, test9,
+  test10, test11, test12, test13, test14, test15, test16, test17, test18, test19,
+  test20, test21,
+];
+
+// Global variable to have an easy access to <div id='content'>.
+var content = document.getElementById('content');
+
+// Initializing the needed elements.
+var forms = [
+  document.createElement('form'),
+  document.createElement('form'),
+  document.createElement('form'),
+];
+
+var elementNames = [
+  'button', 'fieldset', 'input', 'label', 'object', 'output', 'select',
+  'textarea'
+];
+
+var todoElements = [
+  ['keygen', 'Keygen'],
+];
+
+for (var e of todoElements) {
+  var node = document.createElement(e[0]);
+  var nodeString = HTMLElement.prototype.toString.apply(node);
+  nodeString = nodeString.replace(/Element[\] ].*/, "Element");
+  todo_is(nodeString, "[object HTML" + e[1] + "Element",
+          e[0] + " should not be implemented");
+}
+
+for (var name of elementNames) {
+  var elements = [
+    document.createElement(name),
+    document.createElement(name),
+  ];
+
+  for (var func of functions) {
+    // Clean-up.
+    while (content.firstChild) {
+      content.removeChild(content.firstChild);
+    }
+    for (form of forms) {
+      content.appendChild(form);
+      form.removeAttribute('id');
+    }
+    for (e of elements) {
+      content.appendChild(e);
+      e.removeAttribute('form');
+      is(e.form, null, "The element should not have a form owner");
+    }
+
+    // Calling the test.
+    var results = func(forms, elements);
+
+    // Checking the results.
+    var formsList = results[0];
+    for (var i=0; i<formsList.length; ++i) {
+      var elementsList = results[1][i];
+      if (name != 'label' && name != 'meter' && name != 'progress') {
+        is(formsList[i].elements.length, elementsList.length,
+           "The form should contain " + elementsList.length + " elements");
+      }
+      for (var j=0; j<elementsList.length; ++j) {
+        if (name != 'label' && name != 'meter' && name != 'progress') {
+          is(formsList[i].elements[j], elementsList[j],
+             "The form should contain " + elementsList[j]);
+        }
+        if (name != 'label') {
+          is(elementsList[j].form, formsList[i],
+             "The form owner should be the form associated to the list");
+        }
+      }
+    }
+  }
+
+  // Cleaning-up.
+  for (e of elements) {
+    e.parentNode.removeChild(e);
+    e = null;
+  }
+}
+
+</script>
+</pre>
+</body>
+</html>