1// Copyright Joyent, Inc. and other Node contributors.
2//
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4// copy of this software and associated documentation files (the
5// "Software"), to deal in the Software without restriction, including
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7// distribute, sublicense, and/or sell copies of the Software, and to permit
8// persons to whom the Software is furnished to do so, subject to the
9// following conditions:
10//
11// The above copyright notice and this permission notice shall be included
12// in all copies or substantial portions of the Software.
13//
14// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
17// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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19// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20// USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22'use strict';
23// Test compressing and uncompressing a string with zlib
24
25const common = require('../common');
26const assert = require('assert');
27const zlib = require('zlib');
28
29const inputString = 'ΩΩLorem ipsum dolor sit amet, consectetur adipiscing eli' +
30                    't. Morbi faucibus, purus at gravida dictum, libero arcu ' +
31                    'convallis lacus, in commodo libero metus eu nisi. Nullam' +
32                    ' commodo, neque nec porta placerat, nisi est fermentum a' +
33                    'ugue, vitae gravida tellus sapien sit amet tellus. Aenea' +
34                    'n non diam orci. Proin quis elit turpis. Suspendisse non' +
35                    ' diam ipsum. Suspendisse nec ullamcorper odio. Vestibulu' +
36                    'm arcu mi, sodales non suscipit id, ultrices ut massa. S' +
37                    'ed ac sem sit amet arcu malesuada fermentum. Nunc sed. ';
38const expectedBase64Deflate = 'eJxdUUtOQzEMvMoc4OndgT0gJCT2buJWlpI4jePeqZfpmX' +
39                              'AKLRKbLOzx/HK73q6vOrhCunlF1qIDJhNUeW5I2ozT5OkD' +
40                              'lKWLJWkncJG5403HQXAkT3Jw29B9uIEmToMukglZ0vS6oc' +
41                              'iBh4JG8sV4oVLEUCitK2kxq1WzPnChHDzsaGKy491LofoA' +
42                              'bWh8do43oeuYhB5EPCjcLjzYJo48KrfQBvnJecNFJvHT1+' +
43                              'RSQsGoC7dn2t/xjhduTA1NWyQIZR0pbHwMDatnD+crPqKS' +
44                              'qGPHp1vnlsWM/07ubf7bheF7kqSj84Bm0R1fYTfaK8vqqq' +
45                              'fKBtNMhe3OZh6N95CTvMX5HJJi4xOVzCgUOIMSLH7wmeOH' +
46                              'aFE4RdpnGavKtrB5xzfO/Ll9';
47const expectedBase64Gzip = 'H4sIAAAAAAAAA11RS05DMQy8yhzg6d2BPSAkJPZu4laWkjiN4' +
48                           '96pl+mZcAotEpss7PH8crverq86uEK6eUXWogMmE1R5bkjajN' +
49                           'Pk6QOUpYslaSdwkbnjTcdBcCRPcnDb0H24gSZOgy6SCVnS9Lq' +
50                           'hyIGHgkbyxXihUsRQKK0raTGrVbM+cKEcPOxoYrLj3Uuh+gBt' +
51                           'aHx2jjeh65iEHkQ8KNwuPNgmjjwqt9AG+cl5w0Um8dPX5FJCw' +
52                           'agLt2fa3/GOF25MDU1bJAhlHSlsfAwNq2cP5ys+opKoY8enW+' +
53                           'eWxYz/Tu5t/tuF4XuSpKPzgGbRHV9hN9ory+qqp8oG00yF7c5' +
54                           'mHo33kJO8xfkckmLjE5XMKBQ4gxIsfvCZ44doUThF2mcZq8q2' +
55                           'sHnHNzRtagj5AQAA';
56
57zlib.deflate(inputString, common.mustCall((err, buffer) => {
58  zlib.inflate(buffer, common.mustCall((err, inflated) => {
59    assert.strictEqual(inflated.toString(), inputString);
60  }));
61}));
62
63zlib.gzip(inputString, common.mustCall((err, buffer) => {
64  // Can't actually guarantee that we'll get exactly the same
65  // deflated bytes when we compress a string, since the header
66  // depends on stuff other than the input string itself.
67  // However, decrypting it should definitely yield the same
68  // result that we're expecting, and this should match what we get
69  // from inflating the known valid deflate data.
70  zlib.gunzip(buffer, common.mustCall((err, gunzipped) => {
71    assert.strictEqual(gunzipped.toString(), inputString);
72  }));
73}));
74
75let buffer = Buffer.from(expectedBase64Deflate, 'base64');
76zlib.unzip(buffer, common.mustCall((err, buffer) => {
77  assert.strictEqual(buffer.toString(), inputString);
78}));
79
80buffer = Buffer.from(expectedBase64Gzip, 'base64');
81zlib.unzip(buffer, common.mustCall((err, buffer) => {
82  assert.strictEqual(buffer.toString(), inputString);
83}));
84