File: test-zlib-write-after-flush.js

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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var common = require('../common');
var assert = require('assert');
var zlib = require('zlib');
var fs = require('fs');

var gzip = zlib.createGzip();
var gunz = zlib.createUnzip();

gzip.pipe(gunz);

var output = '';
var input = 'A line of data\n';
gunz.setEncoding('utf8');
gunz.on('data', function(c) {
  output += c;
});

process.on('exit', function() {
  assert.equal(output, input);

  // Make sure that the flush flag was set back to normal
  assert.equal(gzip._flushFlag, zlib.Z_NO_FLUSH);

  console.log('ok');
});

// make sure that flush/write doesn't trigger an assert failure
gzip.flush(); write();
function write() {
  gzip.write(input);
  gzip.end();
  gunz.read(0);
}