dom/tests/mochitest/webcomponents/test_document_register_stack.html

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/tests/mochitest/webcomponents/test_document_register_stack.html	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,152 @@
     1.4 +<!DOCTYPE HTML>
     1.5 +<html>
     1.6 +<!--
     1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=783129
     1.8 +-->
     1.9 +<head>
    1.10 +  <title>Test for document.registerElement lifecycle callback</title>
    1.11 +  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    1.12 +<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
    1.13 +</head>
    1.14 +<body>
    1.15 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=783129">Bug 783129</a>
    1.16 +<div id="container">
    1.17 +</div>
    1.18 +<script>
    1.19 +
    1.20 +var container = document.getElementById("container");
    1.21 +
    1.22 +// Test changing attributes in the created callback on an element
    1.23 +// created after registration.
    1.24 +function testChangeAttributeInCreatedCallback() {
    1.25 +  var createdCallbackCalled = false;
    1.26 +  var attributeChangedCallbackCalled = false;
    1.27 +
    1.28 +  var p = Object.create(HTMLElement.prototype);
    1.29 +  p.createdCallback = function() {
    1.30 +    is(createdCallbackCalled, false, "Created callback should be called before attached callback.");
    1.31 +    createdCallbackCalled = true;
    1.32 +    is(attributeChangedCallbackCalled, false, "Attribute changed callback should not have been called prior to setting the attribute.");
    1.33 +    this.setAttribute("foo", "bar");
    1.34 +    is(attributeChangedCallbackCalled, false, "While element is being created, element should not be added to the current element callback queue.");
    1.35 +  };
    1.36 +
    1.37 +  p.attributeChangedCallback = function(name, oldValue, newValue) {
    1.38 +    is(createdCallbackCalled, true, "attributeChanged callback should be called after the created callback because it was enqueued during created callback.");
    1.39 +    is(attributeChangedCallbackCalled, false, "attributeChanged callback should only be called once in this tests.");
    1.40 +    is(newValue, "bar", "The new value should be 'bar'");
    1.41 +    attributeChangedCallbackCalled = true;
    1.42 +    runNextTest();
    1.43 +  };
    1.44 +
    1.45 +  document.registerElement("x-one", { prototype: p });
    1.46 +  document.createElement("x-one");
    1.47 +}
    1.48 +
    1.49 +function testChangeAttributeInEnteredViewCallback() {
    1.50 +  var p = Object.create(HTMLElement.prototype);
    1.51 +  var attributeChangedCallbackCalled = false;
    1.52 +  var attachedCallbackCalled = false;
    1.53 +
    1.54 +  p.attachedCallback = function() {
    1.55 +    is(attachedCallbackCalled, false, "attached callback should be called only once in this test.");
    1.56 +    attachedCallbackCalled = true;
    1.57 +    is(attributeChangedCallbackCalled, false, "Attribute changed callback should not be called before changing attribute.");
    1.58 +    this.setAttribute("foo", "bar");
    1.59 +    is(attributeChangedCallbackCalled, true, "Transition from user-agent implementation to script should result in attribute changed callback being called.");
    1.60 +    runNextTest();
    1.61 +  };
    1.62 +
    1.63 +  p.attributeChangedCallback = function() {
    1.64 +    is(attachedCallbackCalled, true, "attached callback should have been called prior to attribute changed callback.");
    1.65 +    is(attributeChangedCallbackCalled, false, "attributeChanged callback should only be called once in this tests.");
    1.66 +    attributeChangedCallbackCalled = true;
    1.67 +  };
    1.68 +
    1.69 +  document.registerElement("x-two", { prototype: p });
    1.70 +  var elem = document.createElement("x-two");
    1.71 +
    1.72 +  var container = document.getElementById("container");
    1.73 +  container.appendChild(elem);
    1.74 +}
    1.75 +
    1.76 +function testLeaveViewInEnteredViewCallback() {
    1.77 +  var p = Object.create(HTMLElement.prototype);
    1.78 +  var attachedCallbackCalled = false;
    1.79 +  var detachedCallbackCalled = false;
    1.80 +  var container = document.getElementById("container");
    1.81 +
    1.82 +  p.attachedCallback = function() {
    1.83 +    is(this.parentNode, container, "Parent node should the container in which the node was appended.");
    1.84 +    is(attachedCallbackCalled, false, "attached callback should be called only once in this test.");
    1.85 +    attachedCallbackCalled = true;
    1.86 +    is(detachedCallbackCalled, false, "detached callback should not be called prior to removing element from document.");
    1.87 +    container.removeChild(this);
    1.88 +    is(detachedCallbackCalled, true, "Transition from user-agent implementation to script should run left view callback.");
    1.89 +    runNextTest();
    1.90 +  };
    1.91 +
    1.92 +  p.detachedCallback = function() {
    1.93 +    is(detachedCallbackCalled, false, "The detached callback should only be called once in this test.");
    1.94 +    is(attachedCallbackCalled, true, "The attached callback should be called prior to detached callback.");
    1.95 +    detachedCallbackCalled = true;
    1.96 +  };
    1.97 +
    1.98 +  document.registerElement("x-three", { prototype: p });
    1.99 +  var elem = document.createElement("x-three");
   1.100 +
   1.101 +  container.appendChild(elem);
   1.102 +}
   1.103 +
   1.104 +function testStackedAttributeChangedCallback() {
   1.105 +  var p = Object.create(HTMLElement.prototype);
   1.106 +  var attributeChangedCallbackCount = 0;
   1.107 +
   1.108 +  var attributeSequence = ["foo", "bar", "baz"];
   1.109 +
   1.110 +  p.attributeChangedCallback = function(attrName, oldValue, newValue) {
   1.111 +    if (newValue == "baz") {
   1.112 +      return;
   1.113 +    }
   1.114 +
   1.115 +    var nextAttribute = attributeSequence.shift();
   1.116 +    ok(true, nextAttribute);
   1.117 +    // Setting this attribute will call this function again, when
   1.118 +    // control returns to the script, the last attribute in the sequence should
   1.119 +    // be set on the element.
   1.120 +    this.setAttribute("foo", nextAttribute);
   1.121 +    is(this.getAttribute("foo"), "baz", "The last value in the sequence should be the value of the attribute.");
   1.122 +
   1.123 +    attributeChangedCallbackCount++;
   1.124 +    if (attributeChangedCallbackCount == 3) {
   1.125 +      runNextTest();
   1.126 +    }
   1.127 +  };
   1.128 +
   1.129 +  document.registerElement("x-four", { prototype: p });
   1.130 +  var elem = document.createElement("x-four");
   1.131 +  elem.setAttribute("foo", "changeme");
   1.132 +}
   1.133 +
   1.134 +var testFunctions = [
   1.135 +  testChangeAttributeInCreatedCallback,
   1.136 +  testChangeAttributeInEnteredViewCallback,
   1.137 +  testLeaveViewInEnteredViewCallback,
   1.138 +  testStackedAttributeChangedCallback,
   1.139 +  SimpleTest.finish
   1.140 +];
   1.141 +
   1.142 +function runNextTest() {
   1.143 +  if (testFunctions.length > 0) {
   1.144 +    var nextTestFunction = testFunctions.shift();
   1.145 +    nextTestFunction();
   1.146 +  }
   1.147 +}
   1.148 +
   1.149 +SimpleTest.waitForExplicitFinish();
   1.150 +
   1.151 +runNextTest();
   1.152 +
   1.153 +</script>
   1.154 +</body>
   1.155 +</html>

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