File: test-zlib-invalid-input.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.

// test uncompressing invalid input

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

var nonStringInputs = [1, true, {a: 1}, ['a']];

console.error('Doing the non-strings');
nonStringInputs.forEach(function(input) {
  // zlib.gunzip should not throw an error when called with bad input.
  assert.doesNotThrow(function() {
    zlib.gunzip(input, function(err, buffer) {
      // zlib.gunzip should pass the error to the callback.
      assert.ok(err);
    });
  });
});

console.error('Doing the unzips');
// zlib.Unzip classes need to get valid data, or else they'll throw.
var unzips = [ zlib.Unzip(),
               zlib.Gunzip(),
               zlib.Inflate(),
               zlib.InflateRaw() ];
var hadError = [];
unzips.forEach(function (uz, i) {
  console.error('Error for '+uz.constructor.name);
  uz.on('error', function(er) {
    console.error('Error event', er);
    hadError[i] = true;
  });

  uz.on('end', function(er) {
    throw new Error('end event should not be emitted '+uz.constructor.name);
  });

  // this will trigger error event
  uz.write('this is not valid compressed data.');
});

process.on('exit', function() {
  assert.deepEqual(hadError, [true, true, true, true], 'expect 4 errors');
});