webextension-polyfill/test/helpers.js

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"use strict";
const {deepEqual, equal, ok} = require("chai").assert;
module.exports.testCustomProperties = window => {
Object.defineProperty(window.browser, "myns", {
enumerable: true,
configurable: true,
value: {mykey: true},
});
ok("myns" in window.browser, "The custom property exists");
ok("mykey" in window.browser.myns,
"The content of the custom property exists");
deepEqual(window.browser.myns, {mykey: true},
"The custom property has the expected content");
delete window.browser.myns;
ok(!("myns" in window.browser),
"The deleted custom defined property has been removed");
};
module.exports.testUndefinedProperties = window => {
equal(window.browser.myns.mykey, true,
"Got the expected result from a wrapped property");
equal(window.browser.myns.nonexistent, undefined,
"Got undefined for non existent property");
equal(window.browser.nonexistent, undefined,
"Got undefined for non existent namespaces");
};