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/**
* Provides infrastructure for tests that would require mock document.
*/
"use strict";
this.EXPORTED_SYMBOLS = ["MockDocument"]
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.importGlobalProperties(["URL"]);
const MockDocument = {
/**
* Create a document for the given URL containing the given HTML with the ownerDocument of all <form>s having a mocked location.
*/
createTestDocument(aDocumentURL, aContent = "<form>", aType = "text/html") {
let parser = Cc["@mozilla.org/xmlextras/domparser;1"].
createInstance(Ci.nsIDOMParser);
parser.init();
let parsedDoc = parser.parseFromString(aContent, aType);
for (let element of parsedDoc.forms) {
this.mockOwnerDocumentProperty(element, parsedDoc, aDocumentURL);
}
return parsedDoc;
},
mockOwnerDocumentProperty(aElement, aDoc, aURL) {
// Mock the document.location object so we can unit test without a frame. We use a proxy
// instead of just assigning to the property since it's not configurable or writable.
let document = new Proxy(aDoc, {
get(target, property, receiver) {
// document.location is normally null when a document is outside of a "browsing context".
// See https://html.spec.whatwg.org/#the-location-interface
if (property == "location") {
return new URL(aURL);
}
return target[property];
},
});
// Assign element.ownerDocument to the proxy so document.location works.
Object.defineProperty(aElement, "ownerDocument", {
value: document,
});
},
};
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