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@browserstack/testcafe

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Automated browser testing for the modern web development stack.

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"use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); const error_list_1 = __importDefault(require("../../../errors/error-list")); const async_event_emitter_1 = __importDefault(require("../../../utils/async-event-emitter")); const interfaces_1 = require("./interfaces"); const prerender_callsite_1 = __importDefault(require("../../../utils/prerender-callsite")); class IPCProxy extends async_event_emitter_1.default { constructor(transport) { super(); this._requestCounter = 0; this._transport = transport; this._handlers = {}; this._transport.read(); this._transport.on(interfaces_1.IPCTransportEvents.data, rawPacket => this._onRead(rawPacket)); this.on('request', data => this._onRequest(data)); } // eslint-disable-next-line @typescript-eslint/no-explicit-any _saveError(error) { if (interfaces_1.isTestCafeErrorList(error)) { for (const item of error.items) { if (item.callsite) item.callsite = prerender_callsite_1.default(item.callsite); } return error; } // NOTE: The properties of the 'Error' class lost during serialization using the 'JSON.stringify' way // because they are not enumerable. // We clone the object and copy these properties explicitly to mark these properties as enumerable. const errorData = Object.assign({}, error); errorData.name = errorData.name || error.name; errorData.message = errorData.message || error.message; errorData.stack = errorData.stack || error.stack; return errorData; } async _onRead(packet) { if (packet.type === interfaces_1.IPCPacketType.response) this.emit(`response-${packet.id}`, packet); else this.emit('request', packet); } async _onRequest(requestPacket) { let resultData = null; try { resultData = { result: await this._handlers[requestPacket.data.name](...requestPacket.data.args) }; } catch (error) { resultData = { error: this._saveError(error) }; } const responsePacket = { id: requestPacket.id, type: interfaces_1.IPCPacketType.response, sync: requestPacket.sync, data: resultData }; await this._transport.write(responsePacket); } _createPacket(opts) { return { id: this._requestCounter++, type: interfaces_1.IPCPacketType.request, sync: opts.sync, data: opts.data }; } _createPlainError(errorData) { const error = new Error(errorData.message); Object.assign(error, errorData); return error; } _createError(errorData) { if (interfaces_1.isTestCafeErrorList(errorData)) { const errorList = new error_list_1.default(); errorList.items = errorData.items; return errorList; } return this._createPlainError(errorData); } // eslint-disable-next-line @typescript-eslint/no-explicit-any register(func, context = null) { if (this._handlers[func.name]) return; this._handlers[func.name] = func.bind(context); } // eslint-disable-next-line @typescript-eslint/no-explicit-any async call(target, ...args) { const name = typeof target === 'string' ? target : target.name; const packet = this._createPacket({ data: { name, args }, sync: false }); const responsePromise = this.once(`response-${packet.id}`); await this._transport.write(packet); const { data } = await responsePromise; if (interfaces_1.isIPCErrorResponse(data)) throw this._createError(data.error); return data.result; } // eslint-disable-next-line @typescript-eslint/no-explicit-any callSync(target, ...args) { const name = typeof target === 'string' ? target : target.name; const requestPacket = this._createPacket({ data: { name, args }, sync: true }); this._transport.writeSync(requestPacket); let responsePacket = this._transport.readSync(); while (responsePacket.id !== requestPacket.id) responsePacket = this._transport.readSync(); const response = responsePacket.data; if (interfaces_1.isIPCErrorResponse(response)) throw this._createError(response.error); return response.result; } } exports.IPCProxy = IPCProxy; //# 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TestCafeErrorList from '../../../errors/error-list';\nimport EventEmitter from '../../../utils/async-event-emitter';\n\nimport {\n    ExternalError,\n    isTestCafeErrorList,\n\n    IPCPacket,\n    IPCPacketType,\n    IPCRequestPacket,\n    IPCResponsePacket,\n    IPCRequestData,\n    isIPCErrorResponse,\n\n    IPCTransportEvents,\n    IPCTransport,\n} from './interfaces';\n\nimport prerenderCallsite from '../../../utils/prerender-callsite';\n\n\ninterface RequestOptions {\n    data: IPCRequestData;\n    sync: boolean;\n}\n\nexport class IPCProxy extends EventEmitter {\n    private _transport: IPCTransport;\n    private _requestCounter: number = 0;\n    private readonly _handlers: { [name: string]: Function };\n\n    public constructor (transport: IPCTransport) {\n        super();\n\n        this._transport = transport;\n\n        this._handlers = {};\n\n        this._transport.read();\n        this._transport.on(IPCTransportEvents.data, rawPacket => this._onRead(rawPacket));\n        this.on('request', data => this._onRequest(data));\n    }\n\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    private _saveError (error: ExternalError): any {\n        if (isTestCafeErrorList(error)) {\n            for (const item of error.items) {\n                if (item.callsite)\n                    item.callsite = prerenderCallsite(item.callsite);\n            }\n\n            return error;\n        }\n\n        // NOTE: The properties of the 'Error' class lost during serialization using the 'JSON.stringify' way\n        // because they are not enumerable.\n        // We clone the object and copy these properties explicitly to mark these properties as enumerable.\n        const errorData = Object.assign({}, error);\n\n        errorData.name    = errorData.name || error.name;\n        errorData.message = errorData.message || error.message;\n        errorData.stack   = errorData.stack || error.stack;\n\n        return errorData;\n    }\n\n    private async _onRead (packet: IPCPacket): Promise<void> {\n        if (packet.type === IPCPacketType.response)\n            this.emit(`response-${packet.id}`, packet);\n        else\n            this.emit('request', packet);\n    }\n\n    private async _onRequest (requestPacket: IPCRequestPacket): Promise<void> {\n        let resultData = null;\n\n        try {\n            resultData = { result: await this._handlers[requestPacket.data.name](...requestPacket.data.args) };\n        }\n        catch (error) {\n            resultData = { error: this._saveError(error) };\n        }\n\n        const responsePacket: IPCResponsePacket = {\n            id:   requestPacket.id,\n            type: IPCPacketType.response,\n            sync: requestPacket.sync,\n\n            data: resultData\n        };\n\n        await this._transport.write(responsePacket);\n    }\n\n    private _createPacket (opts: RequestOptions): IPCRequestPacket {\n        return {\n            id:   this._requestCounter++,\n            type: IPCPacketType.request,\n            sync: opts.sync,\n            data: opts.data\n        };\n    }\n\n    private _createPlainError (errorData: Error): Error {\n        const error = new Error(errorData.message);\n\n        Object.assign(error, errorData);\n\n        return error;\n    }\n\n    private _createError (errorData: ExternalError): ExternalError {\n        if (isTestCafeErrorList(errorData)) {\n            const errorList = new TestCafeErrorList();\n\n            errorList.items = errorData.items;\n\n            return errorList;\n        }\n\n        return this._createPlainError(errorData);\n    }\n\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    public register (func: Function, context: any = null): void {\n        if (this._handlers[func.name])\n            return;\n\n        this._handlers[func.name] = func.bind(context);\n    }\n\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    public async call (target: string|Function, ...args: any[]): Promise<any> {\n        const name            = typeof target === 'string' ? target : target.name;\n        const packet          = this._createPacket({ data: { name, args }, sync: false });\n        const responsePromise = this.once(`response-${packet.id}`);\n\n        await this._transport.write(packet);\n\n        const { data } = await responsePromise;\n\n        if (isIPCErrorResponse(data))\n            throw this._createError(data.error);\n\n        return data.result;\n    }\n\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    public callSync (target: string|Function, ...args: any[]): any {\n        const name          = typeof target === 'string' ? target : target.name;\n        const requestPacket = this._createPacket({ data: { name, args }, sync: true });\n\n        this._transport.writeSync(requestPacket);\n\n        let responsePacket: IPCResponsePacket = this._transport.readSync();\n\n        while (responsePacket.id !== requestPacket.id)\n            responsePacket = this._transport.readSync();\n\n        const response = responsePacket.data;\n\n        if (isIPCErrorResponse(response))\n            throw this._createError(response.error);\n\n        return response.result;\n    }\n}\n"]}