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var common = require('../common');
var assert = require('assert');
// TODO Improved this test. test_ca.pem is too small. A proper test would
// great a large utf8 (with multibyte chars) file and stream it in,
// performing sanity checks throughout.
var path = require('path');
var fs = require('fs');
var fn = path.join(common.fixturesDir, 'elipses.txt');
var rangeFile = path.join(common.fixturesDir, 'x.txt');
var callbacks = { open: 0, end: 0, close: 0, destroy: 0 };
var paused = false;
var file = fs.ReadStream(fn);
file.addListener('open', function(fd) {
file.length = 0;
callbacks.open++;
assert.equal('number', typeof fd);
assert.ok(file.readable);
});
file.addListener('data', function(data) {
assert.ok(data instanceof Buffer);
assert.ok(!paused);
file.length += data.length;
paused = true;
file.pause();
assert.ok(file.paused);
setTimeout(function() {
paused = false;
file.resume();
assert.ok(!file.paused);
}, 10);
});
file.addListener('end', function(chunk) {
callbacks.end++;
});
file.addListener('close', function() {
callbacks.close++;
assert.ok(!file.readable);
//assert.equal(fs.readFileSync(fn), fileContent);
});
var file2 = fs.createReadStream(fn);
file2.destroy(function(err) {
assert.ok(!err);
callbacks.destroy++;
});
var file3 = fs.createReadStream(fn, {encoding: 'utf8'});
file3.length = 0;
file3.addListener('data', function(data) {
assert.equal('string', typeof(data));
file3.length += data.length;
for (var i = 0; i < data.length; i++) {
// http://www.fileformat.info/info/unicode/char/2026/index.htm
assert.equal('\u2026', data[i]);
}
});
file3.addListener('close', function() {
callbacks.close++;
});
process.addListener('exit', function() {
assert.equal(1, callbacks.open);
assert.equal(1, callbacks.end);
assert.equal(1, callbacks.destroy);
assert.equal(2, callbacks.close);
assert.equal(30000, file.length);
assert.equal(10000, file3.length);
});
var file4 = fs.createReadStream(rangeFile, {bufferSize: 1, start: 1, end: 2});
var contentRead = '';
file4.addListener('data', function(data) {
contentRead += data.toString('utf-8');
});
file4.addListener('end', function(data) {
assert.equal(contentRead, 'yz');
});
try {
fs.createReadStream(rangeFile, {start: 10, end: 2});
assert.fail('Creating a ReadStream with incorrect range limits must throw.');
} catch (e) {
assert.equal(e.message, 'start must be <= end');
}
try {
fs.createReadStream(rangeFile, {start: 2});
assert.fail('Creating a ReadStream with a only one range limits must throw.');
} catch (e) {
assert.equal(e.message, 'Both start and end are needed for range streaming.');
}
var stream = fs.createReadStream(rangeFile, { start: 0, end: 0 });
stream.data = '';
stream.on('data', function(chunk) {
stream.data += chunk;
});
stream.on('end', function() {
assert.equal('x', stream.data);
});
// pause and then resume immediately.
var pauseRes = fs.createReadStream(rangeFile);
pauseRes.pause();
pauseRes.resume();
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