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// Bits and pieces copied from toolkit/components/search/tests/xpcshell/head_search.js
var { classes: Cc, interfaces: Ci, utils: Cu, results: Cr } = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/Task.jsm");
/**
* Adds test engines and returns a promise resolved when they are installed.
*
* The engines are added in the given order.
*
* @param aItems
* Array of objects with the following properties:
* {
* name: Engine name, used to wait for it to be loaded.
* details: Array containing the parameters of addEngineWithDetails,
* except for the engine name. Alternative to xmlFileName.
* }
*/
var addTestEngines = Task.async(function* (aItems) {
let engines = [];
for (let item of aItems) {
yield new Promise((resolve, reject) => {
Services.obs.addObserver(function obs(subject, topic, data) {
try {
let engine = subject.QueryInterface(Ci.nsISearchEngine);
if (data != "engine-added" || engine.name != item.name) {
return;
}
Services.obs.removeObserver(obs, "browser-search-engine-modified");
engines.push(engine);
resolve();
} catch (ex) {
reject(ex);
}
}, "browser-search-engine-modified", false);
Services.search.addEngineWithDetails(item.name, ...item.details);
});
}
return engines;
});
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