testcafe
Version:
Automated browser testing for the modern web development stack.
352 lines (347 loc) • 12.8 kB
JavaScript
(function () {
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
var PENDING = 'pending';
var SETTLED = 'settled';
var FULFILLED = 'fulfilled';
var REJECTED = 'rejected';
var NOOP = function () { };
var isNode = typeof commonjsGlobal !== 'undefined' && typeof commonjsGlobal.process !== 'undefined' && typeof commonjsGlobal.process.emit === 'function';
var asyncSetTimer = typeof setImmediate === 'undefined' ? setTimeout : setImmediate;
var asyncQueue = [];
var asyncTimer;
function asyncFlush() {
// run promise callbacks
for (var i = 0; i < asyncQueue.length; i++) {
asyncQueue[i][0](asyncQueue[i][1]);
}
// reset async asyncQueue
asyncQueue = [];
asyncTimer = false;
}
function asyncCall(callback, arg) {
asyncQueue.push([callback, arg]);
if (!asyncTimer) {
asyncTimer = true;
asyncSetTimer(asyncFlush, 0);
}
}
function invokeResolver(resolver, promise) {
function resolvePromise(value) {
resolve(promise, value);
}
function rejectPromise(reason) {
reject(promise, reason);
}
try {
resolver(resolvePromise, rejectPromise);
}
catch (e) {
rejectPromise(e);
}
}
function invokeCallback(subscriber) {
var owner = subscriber.owner;
var settled = owner._state;
var value = owner._data;
var callback = subscriber[settled];
var promise = subscriber.then;
if (typeof callback === 'function') {
settled = FULFILLED;
try {
value = callback(value);
}
catch (e) {
reject(promise, e);
}
}
if (!handleThenable(promise, value)) {
if (settled === FULFILLED) {
resolve(promise, value);
}
if (settled === REJECTED) {
reject(promise, value);
}
}
}
function handleThenable(promise, value) {
var resolved;
try {
if (promise === value) {
throw new TypeError('A promises callback cannot return that same promise.');
}
if (value && (typeof value === 'function' || typeof value === 'object')) {
// then should be retrieved only once
var then = value.then;
if (typeof then === 'function') {
then.call(value, function (val) {
if (!resolved) {
resolved = true;
if (value === val) {
fulfill(promise, val);
}
else {
resolve(promise, val);
}
}
}, function (reason) {
if (!resolved) {
resolved = true;
reject(promise, reason);
}
});
return true;
}
}
}
catch (e) {
if (!resolved) {
reject(promise, e);
}
return true;
}
return false;
}
function resolve(promise, value) {
if (promise === value || !handleThenable(promise, value)) {
fulfill(promise, value);
}
}
function fulfill(promise, value) {
if (promise._state === PENDING) {
promise._state = SETTLED;
promise._data = value;
asyncCall(publishFulfillment, promise);
}
}
function reject(promise, reason) {
if (promise._state === PENDING) {
promise._state = SETTLED;
promise._data = reason;
asyncCall(publishRejection, promise);
}
}
function publish(promise) {
promise._then = promise._then.forEach(invokeCallback);
}
function publishFulfillment(promise) {
promise._state = FULFILLED;
publish(promise);
}
function publishRejection(promise) {
promise._state = REJECTED;
publish(promise);
if (!promise._handled && isNode) {
commonjsGlobal.process.emit('unhandledRejection', promise._data, promise);
}
}
function notifyRejectionHandled(promise) {
commonjsGlobal.process.emit('rejectionHandled', promise);
}
/**
* @class
*/
function Promise$1(resolver) {
if (typeof resolver !== 'function') {
throw new TypeError('Promise resolver ' + resolver + ' is not a function');
}
if (this instanceof Promise$1 === false) {
throw new TypeError('Failed to construct \'Promise\': Please use the \'new\' operator, this object constructor cannot be called as a function.');
}
this._then = [];
invokeResolver(resolver, this);
}
Promise$1.prototype = {
constructor: Promise$1,
_state: PENDING,
_then: null,
_data: undefined,
_handled: false,
then: function (onFulfillment, onRejection) {
var subscriber = {
owner: this,
then: new this.constructor(NOOP),
fulfilled: onFulfillment,
rejected: onRejection
};
if ((onRejection || onFulfillment) && !this._handled) {
this._handled = true;
if (this._state === REJECTED && isNode) {
asyncCall(notifyRejectionHandled, this);
}
}
if (this._state === FULFILLED || this._state === REJECTED) {
// already resolved, call callback async
asyncCall(invokeCallback, subscriber);
}
else {
// subscribe
this._then.push(subscriber);
}
return subscriber.then;
},
catch: function (onRejection) {
return this.then(null, onRejection);
}
};
Promise$1.all = function (promises) {
if (!Array.isArray(promises)) {
throw new TypeError('You must pass an array to Promise.all().');
}
return new Promise$1(function (resolve, reject) {
var results = [];
var remaining = 0;
function resolver(index) {
remaining++;
return function (value) {
results[index] = value;
if (!--remaining) {
resolve(results);
}
};
}
for (var i = 0, promise; i < promises.length; i++) {
promise = promises[i];
if (promise && typeof promise.then === 'function') {
promise.then(resolver(i), reject);
}
else {
results[i] = promise;
}
}
if (!remaining) {
resolve(results);
}
});
};
Promise$1.race = function (promises) {
if (!Array.isArray(promises)) {
throw new TypeError('You must pass an array to Promise.race().');
}
return new Promise$1(function (resolve, reject) {
for (var i = 0, promise; i < promises.length; i++) {
promise = promises[i];
if (promise && typeof promise.then === 'function') {
promise.then(resolve, reject);
}
else {
resolve(promise);
}
}
});
};
Promise$1.resolve = function (value) {
if (value && typeof value === 'object' && value.constructor === Promise$1) {
return value;
}
return new Promise$1(function (resolve) {
resolve(value);
});
};
Promise$1.reject = function (reason) {
return new Promise$1(function (resolve, reject) {
reject(reason);
});
};
var pinkie = Promise$1;
var __awaiter = ((void 0) && (void 0).__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = pinkie))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = ((void 0) && (void 0).__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var MAX_RETRY = 10;
var RETRY_DELAY = 500;
var PAGE_FETCH_MODE = 'navigate';
function delay(ms) {
return new pinkie(function (r) { return setTimeout(r, ms); });
}
function tryGetResponse(request) {
return __awaiter(this, void 0, void 0, function () {
var error_1;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
_b.trys.push([0, 2, , 3]);
_a = {};
return [4 /*yield*/, fetch(request)];
case 1: return [2 /*return*/, (_a.response = _b.sent(), _a)];
case 2:
error_1 = _b.sent();
return [2 /*return*/, { error: error_1 }];
case 3: return [2 /*return*/];
}
});
});
}
function getResponse(request) {
return __awaiter(this, void 0, void 0, function () {
var error, response, i;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
error = null;
response = null;
i = 0;
_b.label = 1;
case 1:
if (!(i < MAX_RETRY)) return [3 /*break*/, 5];
return [4 /*yield*/, tryGetResponse(request)];
case 2:
(_a = _b.sent(), error = _a.error, response = _a.response);
if (!error)
return [2 /*return*/, response];
// eslint-disable-next-line no-console
console.error(error.stack || error);
return [4 /*yield*/, delay(RETRY_DELAY)];
case 3:
_b.sent();
_b.label = 4;
case 4:
i++;
return [3 /*break*/, 1];
case 5: throw error;
}
});
});
}
self.addEventListener('fetch', function (event) {
if (event.request.mode !== PAGE_FETCH_MODE)
return;
event.respondWith(getResponse(event.request));
});
self.addEventListener('install', function () {
self.skipWaiting();
});
})();