Quelle test_general.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/accessible/tests/mochitest/aom/test_general.html

<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Accessibility API: generic</title>
  <link rel="stylesheet" type="text/css"
        href="chrome://mochikit/content/tests/SimpleTest/test.css">
  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <script>
  "use strict";

  SimpleTest.waitForExplicitFinish();
  const finish = SimpleTest.finish.bind(SimpleTest);
  enablePref()
    .then(createIframe)
    .then(checkImplementation)
    .catch(err => {
      dump(`${err}: ${err.stack}`);
      finish();
    });

  function enablePref() {
    const ops = {
      "set": [
        [ "accessibility.AOM.enabled", true ],
      ],
    };
    return SpecialPowers.pushPrefEnv(ops);
  }

  // WebIDL conditional annotations for an interface are evaluated once per
  // global, so we need to create an iframe to see the effects of calling
  // enablePref().
  function createIframe() {
    return new Promise((resolve) => {
      let iframe = document.createElement("iframe");
      iframe.src = `data:text/html,<html><body>hey</body></html>`;
      iframe.onload = () => resolve(iframe.contentDocument);
      document.body.appendChild(iframe);
      document.body.offsetTop; // We rely on the a11y tree being created
                               // already, and it's created off layout.
    });
  }

  function testStringProp(anode, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    let text = "This is a string test";
    anode[prop] = text;
    is(anode[prop], text, `anode.${prop} was assigned "${text}"`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }

  function testBoolProp(anode, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    anode[prop] = true;
    is(anode[prop], true, `anode.${prop} was assigned true`);
    anode[prop] = false;
    is(anode[prop], false, `anode.${prop} was assigned false`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }

  function testDoubleProp(anode, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    anode[prop] = Number.MAX_VALUE;
    is(anode[prop], Number.MAX_VALUE, `anode.${prop} was assigned ${Number.MAX_VALUE}`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }

  function testIntProp(anode, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    anode[prop] = -1;
    is(anode[prop], -1, `anode.${prop} was assigned -1`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }

  function testUIntProp(anode, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    anode[prop] = 4294967295;
    is(anode[prop], 4294967295, `anode.${prop} was assigned 4294967295`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }

  function testRelationProp(anode, node, prop) {
    is(anode[prop], null, `anode.${prop} should be null`);
    anode[prop] = node.accessibleNode;
    is(anode[prop], node.accessibleNode, `anode.${prop} was assigned AccessibleNode`);
    anode[prop] = null;
    is(anode[prop], null, `anode.${prop} was assigned null`);
  }
  // Check that the WebIDL is as expected.
  function checkImplementation(ifrDoc) {
    let anode = ifrDoc.accessibleNode;
    ok(anode, "DOM document has accessible node");

    is(anode.computedRole, "document", "correct role of a document accessible node");
    is(anode.DOMNode, ifrDoc, "correct DOM Node of a document accessible node");

    // States may differ depending on the document state, for example, if it is
    // loaded or is loading still.
    var states = null;
    switch (anode.states.length) {
      case 5:
        states = [
          "readonly", "focusable", "opaque", "enabled", "sensitive",
        ];
        break;
      case 6:
        states = [
          "readonly", "busy", "focusable", "opaque", "enabled", "sensitive",
        ];
        break;
      case 7:
        states = [
          "readonly", "busy", "focusable", "opaque", "stale", "enabled", "sensitive",
        ];
        break;
      default:
        ok(false, "Unexpected amount of states: " + JSON.stringify(anode.states));
    }
    if (states) {
      for (let i = 0; i < states.length; i++) {
        is(anode.states[i], states[i], `${states[i]} state is expected at ${i}th index`);
      }
    }

    ok(anode.is("document", "focusable"),
       "correct role and state on an accessible node");

    is(anode.get("explicit-name"), "true",
       "correct object attribute value on an accessible node");

    ok(anode.has("explicit-name"),
       "object attributes are present");

    var attrs = [ "explicit-name" ];
    if (anode.attributes.length > 1) {
      attrs = [
        "margin-left", "text-align", "text-indent", "margin-right",
        "tag", "margin-top", "margin-bottom", "display",
        "explicit-name",
      ];
    }

    is(anode.attributes.length, attrs.length, "correct number of attributes");
    for (let i = 0; i < attrs.length; i++) {
      ok(attrs.includes(anode.attributes[i]),
         `${anode.attributes[i]} attribute is expected and found`);
    }

    const strProps = ["autocomplete", "checked", "current", "hasPopUp", "invalid",
                      "keyShortcuts", "label", "live", "orientation", "placeholder",
                      "pressed", "relevant", "role", "roleDescription", "sort",
                      "valueText"];

    for (const strProp of strProps) {
      testStringProp(anode, strProp);
    }

    const boolProps = ["atomic", "busy", "disabled", "expanded", "hidden", "modal",
                       "multiline", "multiselectable", "readOnly", "required", "selected"];

    for (const boolProp of boolProps) {
      testBoolProp(anode, boolProp);
    }

    const doubleProps = ["valueMax", "valueMin", "valueNow"];

    for (const doubleProp of doubleProps) {
      testDoubleProp(anode, doubleProp);
    }

    const intProps = ["colCount", "rowCount", "setSize"];

    for (const intProp of intProps) {
      testIntProp(anode, intProp);
    }

    const uintProps = ["colIndex", "colSpan", "level", "posInSet", "rowIndex", "rowSpan"];

    for (const uintProp of uintProps) {
      testUIntProp(anode, uintProp);
    }

    // Check if an AccessibleNode is properly cached.
    let node = ifrDoc.createElement("div");
    anode = node.accessibleNode;
    is(anode, node.accessibleNode, "an AccessibleNode is properly cached");

    // Adopting node to another document doesn't change .accessibleNode
    let anotherDoc = ifrDoc.implementation.createDocument("", "", null);
    let adopted_node = anotherDoc.adoptNode(node);
    is(anode, adopted_node.accessibleNode, "adopting node to another document doesn't change node.accessibleNode");

    const relationProps = ["activeDescendant", "details", "errorMessage"];

    for (const relationProp of relationProps) {
      testRelationProp(anode, node, relationProp);
    }

    finish();
  }
  </script>
</head>

Messung V0.5

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Cephes Mathematical Library

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