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/* eslint-disable node-core/require-common-first, node-core/required-modules */
'use strict';
// Hijack stdout and stderr
const stdWrite = {};
function hijackStdWritable(name, listener) {
const stream = process[name];
const _write = stdWrite[name] = stream.write;
stream.writeTimes = 0;
stream.write = function(data, callback) {
try {
listener(data);
} catch (e) {
process.nextTick(() => { throw e; });
}
_write.call(stream, data, callback);
stream.writeTimes++;
};
}
function restoreWritable(name) {
process[name].write = stdWrite[name];
delete process[name].writeTimes;
}
module.exports = {
hijackStdout: hijackStdWritable.bind(null, 'stdout'),
hijackStderr: hijackStdWritable.bind(null, 'stderr'),
restoreStdout: restoreWritable.bind(null, 'stdout'),
restoreStderr: restoreWritable.bind(null, 'stderr')
};