test_tree_09.html - mozsearch

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<!-- This Source Code Form is subject to the terms of the Mozilla Public

   - License, v. 2.0. If a copy of the MPL was not distributed with this

   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<!DOCTYPE HTML>

<html>

<!--

Test that when an item in the Tree component is expanded or collapsed the appropriate event handler fires.

-->

<head>

  <meta charset="utf-8">

  <title>Tree component test</title>

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">

  <link rel="stylesheet" href="chrome://devtools/skin/light-theme.css" type="text/css">

</head>

<body>

<pre id="test">

<script src="head.js" type="application/javascript"></script>

<script type="application/javascript">

'use strict'

window.onload = async function () {

  try {

    const ReactDOM = browserRequire("devtools/client/shared/vendor/react-dom");

    const { createFactory } = browserRequire("devtools/client/shared/vendor/react");

    const { Simulate } = browserRequire("devtools/client/shared/vendor/react-dom-test-utils");

    const Tree = createFactory(browserRequire("devtools/client/shared/components/VirtualizedTree"));

    let numberOfExpands = 0;

    let lastExpandedItem = null;

    let numberOfCollapses = 0;

    let lastCollapsedItem = null;

    function renderTree(props) {

      const treeProps = Object.assign({},

        TEST_TREE_INTERFACE,

          autoExpandDepth: 0,

          onExpand: item => {

            lastExpandedItem = item;

            numberOfExpands++;

            TEST_TREE.expanded.add(item);

},

          onCollapse: item => {

            lastCollapsedItem = item;

            numberOfCollapses++;

            TEST_TREE.expanded.delete(item);

},

          onFocus: item => renderTree({ focused: item })

},

        props

);

      return ReactDOM.render(Tree(treeProps), window.document.body);

    const tree = renderTree({ focused: "A" });

    is(lastExpandedItem, null);

    is(lastCollapsedItem, null);

    // Expand "A" via the keyboard and then let the component re-render.

    Simulate.keyDown(document.querySelector(".tree"), { key: "ArrowRight" });

    await forceRender(tree);

    is(lastExpandedItem, "A", "Our onExpand callback should have been fired.");

    is(numberOfExpands, 1);

    // Now collapse "A" via the keyboard and then let the component re-render.

    Simulate.keyDown(document.querySelector(".tree"), { key: "ArrowLeft" });

    await forceRender(tree);

    is(lastCollapsedItem, "A", "Our onCollapsed callback should have been fired.");

    is(numberOfCollapses, 1);

  } catch(e) {

    ok(false, "Got an error: " + DevToolsUtils.safeErrorString(e));

  } finally {

    SimpleTest.finish();

};

</script>

</pre>

</body>

</html>