testcafe/lib/runner/tested-app.js

Automated browser testing for the modern web development stack.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const path_1 = require("path");
const execa_1 = require("execa");
const lodash_1 = require("lodash");
const tree_kill_1 = __importDefault(require("tree-kill"));
const os_family_1 = __importDefault(require("os-family"));
const delay_1 = __importDefault(require("../utils/delay"));
const runtime_1 = require("../errors/runtime");
const types_1 = require("../errors/types");
const resolve_path_relatively_cwd_1 = __importDefault(require("../utils/resolve-path-relatively-cwd"));
const debug_1 = __importDefault(require("debug"));
const MODULES_BIN_DIR = (0, resolve_path_relatively_cwd_1.default)('./node_modules/.bin');
const ENV_PATH_KEY = (function () {
    if (os_family_1.default.win) {
        let pathKey = 'Path';
        Object.keys(process.env).forEach(key => {
            if (key.toLowerCase() === 'path')
                pathKey = key;
        });
        return pathKey;
    }
    return 'PATH';
})();
class TestedApp {
    constructor() {
        this._process = null;
        this._killed = false;
        this._stdoutLogger = (0, debug_1.default)('testcafe:tested-app:stdout');
        this._stderrLogger = (0, debug_1.default)('testcafe:tested-app:stderr');
        this.errorPromise = null;
    }
    async _run(command) {
        const env = Object.assign({}, process.env);
        const path = env[ENV_PATH_KEY] || '';
        const pathParts = path.split(path_1.delimiter);
        pathParts.unshift(MODULES_BIN_DIR);
        env[ENV_PATH_KEY] = pathParts.join(path_1.delimiter);
        this._process = (0, execa_1.command)(command, { shell: true, env });
        if (this._process.stdout)
            this._process.stdout.on('data', data => this._stdoutLogger(String(data)));
        if (this._process.stderr)
            this._process.stderr.on('data', data => this._stderrLogger(String(data)));
        try {
            await this._process;
        }
        catch (err) {
            if (this._killed)
                return;
            const message = err.stack || String(err);
            throw new runtime_1.GeneralError(types_1.RUNTIME_ERRORS.testedAppFailedWithError, message);
        }
    }
    async start(command, initDelay) {
        // NOTE: We should not resolve it if no error was thrown
        this.errorPromise = this
            ._run(command)
            .then(() => new Promise(lodash_1.noop));
        await Promise.race([
            (0, delay_1.default)(initDelay),
            this.errorPromise,
        ]);
    }
    async kill() {
        this._killed = true;
        const killPromise = new Promise(resolve => { var _a; return (0, tree_kill_1.default)((_a = this._process.pid) !== null && _a !== void 0 ? _a : 0, 'SIGTERM', resolve); });
        await killPromise;
    }
}
exports.default = TestedApp;
module.exports = exports.default;
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