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38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*global Cu, BrowserTestUtils, is, ok, add_task, gBrowser */
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"use strict";
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Cu.import("resource://gre/modules/PromiseMessage.jsm", this);
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const url = "http://example.org/tests/dom/manifest/test/resource.sjs";
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/**
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* Test basic API error conditions
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*/
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add_task(function* () {
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yield BrowserTestUtils.withNewTab({gBrowser, url}, testPromiseMessageAPI)
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});
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function* testPromiseMessageAPI(aBrowser){
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// Reusing an existing message.
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const msgKey = "DOM:WebManifest:hasManifestLink";
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const mm = aBrowser.messageManager;
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const id = "this should not change";
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const foo = "neitherShouldThis";
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const data = {id, foo};
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// This just returns false, and it doesn't matter for this test.
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yield PromiseMessage.send(mm, msgKey, data);
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// Check that no new props were added
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const props = Object.getOwnPropertyNames(data);
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ok(props.length === 2, "There should only be 2 props");
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ok(props.includes("id"), "Has the id property");
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ok(props.includes("foo"), "Has the foo property");
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// Check that the props didn't change.
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is(data.id, id, "The id prop must not change.");
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is(data.foo, foo, "The foo prop must not change.");
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}
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