test/parallel/test-stream-passthrough-drain.js

1cb0ef41Sopenharmony_ci'use strict';
1cb0ef41Sopenharmony_ciconst common = require('../common');
1cb0ef41Sopenharmony_ciconst assert = require('assert');
1cb0ef41Sopenharmony_ciconst { PassThrough } = require('stream');
1cb0ef41Sopenharmony_ci
1cb0ef41Sopenharmony_ciconst pt = new PassThrough({ highWaterMark: 0 });
1cb0ef41Sopenharmony_cipt.on('drain', common.mustCall());
1cb0ef41Sopenharmony_ciassert(!pt.write('hello1'));
1cb0ef41Sopenharmony_cipt.read();
1cb0ef41Sopenharmony_cipt.read();