1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
// 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 assert = require('assert');
var spawn = require('child_process').spawn;
var path = require('path');
var fs = require('fs');
function fixtPath(p) {
return path.join(common.fixturesDir, p);
}
var expected = 'hello world';
// Test the equivalent of:
// $ /bin/echo 'hello world' > hello.txt
var helloPath = fixtPath('hello.txt');
function test1(next) {
console.log('Test 1...');
fs.open(helloPath, 'w', 400, function(err, fd) {
if (err) throw err;
var child = spawn('/bin/echo', [expected], {customFds: [-1, fd]});
assert.notEqual(child.stdin, null);
assert.equal(child.stdout, null);
assert.notEqual(child.stderr, null);
child.addListener('exit', function(err) {
if (err) throw err;
fs.close(fd, function(error) {
if (error) throw error;
fs.readFile(helloPath, function(err, data) {
if (err) throw err;
assert.equal(data.toString(), expected + '\n');
console.log(' File was written.');
next(test3);
});
});
});
});
}
// Test the equivalent of:
// $ node ../fixture/stdio-filter.js < hello.txt
function test2(next) {
console.log('Test 2...');
fs.open(helloPath, 'r', undefined, function(err, fd) {
var child = spawn(process.argv[0],
[fixtPath('stdio-filter.js'), 'o', 'a'],
{customFds: [fd, -1, -1]});
assert.equal(child.stdin, null);
var actualData = '';
child.stdout.addListener('data', function(data) {
actualData += data.toString();
});
child.addListener('exit', function(code) {
if (err) throw err;
assert.equal(actualData, 'hella warld\n');
console.log(' File was filtered successfully');
fs.close(fd, function() {
next(test3);
});
});
});
}
// Test the equivalent of:
// $ /bin/echo 'hello world' | ../stdio-filter.js a o
function test3(next) {
console.log('Test 3...');
var filter = spawn(process.argv[0], [fixtPath('stdio-filter.js'), 'o', 'a']);
var echo = spawn('/bin/echo', [expected], {customFds: [-1, filter.fds[0]]});
var actualData = '';
filter.stdout.addListener('data', function(data) {
console.log(' Got data --> ' + data);
actualData += data;
});
filter.addListener('exit', function(code) {
if (code) throw 'Return code was ' + code;
assert.equal(actualData, 'hella warld\n');
console.log(' Talked to another process successfully');
});
echo.addListener('exit', function(code) {
if (code) throw 'Return code was ' + code;
filter.stdin.end();
fs.unlinkSync(helloPath);
});
}
test1(test2);
|
