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test-meat.js
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test-meat.js
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var testCase = require('nodeunit').testCase,
fs = require('fs'),
QueueStream = require('../lib/queuestream').QueueStream;
module.exports = testCase({
"test injecting": function(assert) {
var stream = new QueueStream();
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test2);
stream.inject(test1);
assert.equal(stream.length(), 2);
var queue = stream.getQueue();
assert.deepEqual(queue[0], test1);
assert.deepEqual(queue[1], test2);
assert.done();
},
"test injecting nothing": function(assert) {
var stream = new QueueStream();
stream.inject();
assert.equal(stream.length(), 0);
var queue = stream.getQueue();
assert.equal(queue.length, 0);
assert.done();
},
"test injecting array": function(assert) {
var stream = new QueueStream();
var test0 = fs.createReadStream(__dirname + '/files/test1.txt');
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test0);
stream.inject([test1, test2]);
assert.equal(stream.length(), 3);
var queue = stream.getQueue();
assert.equal(queue.length, 3);
assert.deepEqual(queue[0], test1);
assert.deepEqual(queue[1], test2);
assert.done();
},
"test queuing": function(assert) {
var stream = new QueueStream();
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
stream.queue(test1);
assert.equal(stream.length(), 1);
var queue = stream.getQueue();
assert.deepEqual(queue[0], test1);
assert.done();
},
"test queuing nothing": function(assert) {
var stream = new QueueStream();
stream.queue();
assert.equal(stream.length(), 0);
var queue = stream.getQueue();
assert.equal(queue.length, 0);
assert.done();
},
"test queuing array": function(assert) {
var stream = new QueueStream();
var test0 = fs.createReadStream(__dirname + '/files/test1.txt');
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test0);
stream.queue([test1, test2]);
assert.equal(stream.length(), 3);
var queue = stream.getQueue();
assert.equal(queue.length, 3);
assert.deepEqual(queue[1], test1);
assert.deepEqual(queue[2], test2);
assert.done();
},
"test data emits": function(assert) {
assert.expect(6);
var count = 0;
var stream = new QueueStream();
stream.on('error', function(err) {
console.log('err: ' + err);
});
function dataCb(data) {
var str = data.toString();
assert.ok((str == 'Hello\n' || str == 'World\n'));
if (++count == 6) assert.done();
}
stream.on('data', dataCb);
stream.on('data', dataCb);
stream.on('data', dataCb);
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
stream.queue(test1);
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test2);
stream.startNext();
},
"test data emits with small buffers": function(assert) {
assert.expect(12);
var count = 0;
var stream = new QueueStream();
stream.on('error', function(err) {
console.log('err: ' + err);
});
function dataCb(data) {
var str = data.toString();
assert.ok(str == 'He' || str == 'll' || str == 'o\n' || str == 'World\n');
if (++count == 12) assert.done();
}
stream.on('data', dataCb);
stream.on('data', dataCb);
stream.on('data', dataCb);
var test1 = fs.createReadStream(__dirname + '/files/test1.txt', {bufferSize: 2});
stream.queue(test1);
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test2);
stream.startNext();
},
"test next": function(assert) {
assert.expect(6);
var count = 0;
var stream = new QueueStream();
var test1 = fs.createReadStream(__dirname + '/files/test1.txt');
stream.queue(test1);
var test2 = fs.createReadStream(__dirname + '/files/test2.txt');
stream.queue(test2);
stream.next();
var current = stream.getCurrent();
assert.deepEqual(current, test1);
var endListeners = current.listeners("end");
var dataListeners = current.listeners("data");
var errorListeners = current.listeners("error");
var pauseListeners = current.listeners("pause");
var resumeListeners = current.listeners("resume");
assert.equal(endListeners.length, 1);
assert.equal(dataListeners.length, 1);
assert.equal(errorListeners.length, 1);
assert.equal(pauseListeners.length, 1);
assert.equal(resumeListeners.length, 1);
assert.done();
}
});