@typed/test/lib.es2015/typescript/typeCheckInAnotherProcess.js

Testing made simple.

import { fork } from 'child_process';
import { existsSync } from 'fs';
import { join } from 'path';
const typeCheckCliBasePath = join(__dirname, 'typeCheckCli');
const tsPath = typeCheckCliBasePath + '.ts';
const jsPath = typeCheckCliBasePath + '.js';
const typeCheckCliPath = existsSync(jsPath) ? jsPath : tsPath;
export function typecheckInAnotherProcess(cwd, files) {
    return runInAnotherProcess(typeCheckCliPath, [cwd, ...files]);
}
function runInAnotherProcess(filePath, args) {
    return new Promise(resolve => {
        const messages = [];
        const errors = [];
        const subprocess = fork(filePath, args, { stdio: ['pipe', 'pipe', 'pipe', 'ipc'] });
        subprocess.stdout.on('data', msg => messages.push(msg.toString()));
        subprocess.stderr.on('data', msg => errors.push(msg.toString()));
        subprocess.on('close', exitCode => resolve({ exitCode, stdout: messages.join(''), stderr: errors.join('') }));
    });
}
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