chromeless
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🖥 Chrome automation made simple. Runs locally or headless on AWS Lambda.
128 lines • 6.16 kB
JavaScript
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__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 = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [0, 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 _this = this;
Object.defineProperty(exports, "__esModule", { value: true });
var fs = require("fs");
var os = require("os");
var CDP = require("chrome-remote-interface");
var ava_1 = require("ava");
var src_1 = require("../src");
var testHtml = fs.readFileSync('./src/__tests__/test.html');
var testUrl = "data:text/html," + testHtml;
var getPngMetaData = function (filePath) { return __awaiter(_this, void 0, void 0, function () {
var fd;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
fd = fs.openSync(filePath, 'r');
return [4 /*yield*/, new Promise(function (resolve) {
fs.read(fd, Buffer.alloc(24), 0, 24, 0, function (err, bytesRead, buffer) {
return resolve({
width: buffer.readUInt32BE(16),
height: buffer.readUInt32BE(20),
});
});
})];
case 1: return [2 /*return*/, _a.sent()];
}
});
}); };
// POC
ava_1.default('evaluate (document.title)', function (t) { return __awaiter(_this, void 0, void 0, function () {
var chromeless, title;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
chromeless = new src_1.default({ launchChrome: false });
return [4 /*yield*/, chromeless.goto(testUrl).evaluate(function () { return document.title; })];
case 1:
title = _a.sent();
return [4 /*yield*/, chromeless.end()];
case 2:
_a.sent();
t.is(title, 'Title');
return [2 /*return*/];
}
});
}); });
ava_1.default('screenshot and pdf path', function (t) { return __awaiter(_this, void 0, void 0, function () {
var chromeless, screenshot, pdf, regex;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
chromeless = new src_1.default({ launchChrome: false });
return [4 /*yield*/, chromeless.goto(testUrl).screenshot()];
case 1:
screenshot = _a.sent();
return [4 /*yield*/, chromeless.goto(testUrl).pdf()];
case 2:
pdf = _a.sent();
return [4 /*yield*/, chromeless.end()];
case 3:
_a.sent();
regex = new RegExp(os.tmpdir().replace(/\\/g, '\\\\'));
t.regex(screenshot, regex);
t.regex(pdf, regex);
return [2 /*return*/];
}
});
}); });
ava_1.default('screenshot by selector', function (t) { return __awaiter(_this, void 0, void 0, function () {
var version, versionMajor, chromeless, screenshot, png;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, CDP.Version()];
case 1:
version = _a.sent();
versionMajor = parseInt(/Chrome\/(\d+)/.exec(version['User-Agent'])[1]);
chromeless = new src_1.default({ launchChrome: false });
return [4 /*yield*/, chromeless.goto(testUrl).screenshot('img')];
case 2:
screenshot = _a.sent();
return [4 /*yield*/, chromeless.end()];
case 3:
_a.sent();
return [4 /*yield*/, getPngMetaData(screenshot)];
case 4:
png = _a.sent();
t.is(png.width, versionMajor > 60 ? 512 : 1440);
t.is(png.height, versionMajor > 60 ? 512 : 900);
return [2 /*return*/];
}
});
}); });
//# sourceMappingURL=util.test.js.map
;