Files
polymer/test/unit/strict-template-policy.html
Kevin Schaaf 47ade191de Catch errors on top window using uncaughtErrorFilter
Works around safari quirk when running in iframe
2018-07-17 17:42:47 -07:00

161 lines
5.6 KiB
HTML

<!DOCTYPE html>
<!--
@license
Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<html>
<head>
<meta charset="UTF-8">
<script src="../../node_modules/@webcomponents/webcomponentsjs/webcomponents-bundle.js"></script>
<script src="wct-browser-config.js"></script>
<script src="../../node_modules/wct-browser-legacy/browser.js"></script>
<script type="module">
import { setStrictTemplatePolicy } from '../../lib/utils/settings.js';
import { Debouncer } from '../../lib/utils/debounce.js';
setStrictTemplatePolicy(true);
// Errors thrown in Polymer's debouncer queue get re-thrown
// via setTimeout, making them particulary difficult to verify;
// Wrap debouncer callbacks and store on the globalError to test later
const debounce = Debouncer.debounce;
Debouncer.debounce = function(debouncer, asyncModule, callback) {
return debounce(debouncer, asyncModule, function() {
try {
callback();
} catch(error) {
if (!window.uncaughtErrorFilter || !window.uncaughtErrorFilter(error)) {
throw error;
}
}
});
};
</script>
</head>
<body>
<dom-module id="trusted-element">
<template>Should never be used</template>
<script type="module">
import {PolymerElement} from '../../polymer-element.js';
class TrustedElement extends PolymerElement {
static get is() { return 'trusted-element'; }
}
customElements.define(TrustedElement.is, TrustedElement);
</script>
</dom-module>
<dom-module id="trusted-element-legacy">
<template>Should never be used</template>
<script type="module">
import {Polymer} from '../../polymer-legacy.js';
Polymer({is: 'trusted-element-legacy'});
</script>
</dom-module>
<div id="target"></div>
<script type="module">
import {Polymer} from '../../polymer-legacy.js';
import {flush} from '../../lib/utils/flush.js';
suite('strictTemplatePolicy', function() {
teardown(function() {
window.uncaughtErrorFilter = window.top.uncaughtErrorFilter = null;
});
// Errors thrown in custom element reactions are not thrown up
// the call stack to the dom methods that provoked them, so this
// wraps Chai's assert.throws to re-throw uncaught errors
function assertThrows(fn, re) {
let uncaughtError = null;
// Catch uncaught errors; note when running in iframe sometimes
// Safari errors are thrown on the top window, sometimes not, so
// catch in both places
window.uncaughtErrorFilter = window.top.uncaughtErrorFilter = function(err) {
uncaughtError = err;
return true;
}
assert.throws(function() {
fn();
// Re-throw any uncaughtErrors
if (uncaughtError) {
throw new Error(uncaughtError.message);
}
// Force polyfill reactions and/or async template stamping
flush();
// Re-throw any uncaughtErrors
if (uncaughtError) {
throw new Error(uncaughtError.message);
}
}, re);
}
test('dom-bind', function() {
assertThrows(function() {
document.getElementById('target').innerHTML =
'<dom-bind>' +
' <template>' +
' <div id="injected"></div>'+
' </template>`' +
'</dom-bind>';
}, /dom-bind not allowed/);
assert.notOk(document.getElementById('injected'));
});
test('dom-if', function() {
assertThrows(function() {
document.getElementById('target').innerHTML =
'<dom-if if>' +
' <template>' +
' <div id="injected"></div>'+
' </template>' +
'</dom-if>';
}, /template owner not trusted/);
assert.notOk(document.getElementById('injected'));
});
test('dom-repeat', function() {
assertThrows(function() {
document.getElementById('target').innerHTML =
'<dom-repeat items="[0]">' +
' <template>' +
' <div id="injected"></div>'+
' </template>`' +
'</dom-repeat>';
}, /template owner not trusted/);
assert.notOk(document.getElementById('injected'));
});
test('dom-module never used', function() {
var el = document.createElement('trusted-element');
document.getElementById('target').appendChild(el);
assert.notOk(el.shadowRoot);
});
test('dom-module never used (legacy)', function() {
var el = document.createElement('trusted-element-legacy');
document.getElementById('target').appendChild(el);
assert.notOk(el.shadowRoot);
});
test('dom-module re-registration throws', function() {
assertThrows(function() {
document.getElementById('target').innerHTML =
'<dom-module id="trusted-element">' +
' <template>' +
' <div id="injected"></div>'+
' </template>`' +
'</dom-module>';
}, /trusted-element registered twice/);
});
});
</script>
</body>
</html>