123 lines
3.7 KiB
JavaScript
123 lines
3.7 KiB
JavaScript
var helper = require(__dirname + '/../test-helper');
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var CopyToStream = require(__dirname + '/../../../lib/copystream').CopyToStream;
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var DataCounter = function () {
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this.sendBytes = 0;
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this.recievedBytes = 0;
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};
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DataCounter.prototype = {
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send: function (buf) {
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this.sendBytes += buf.length;
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return buf;
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},
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recieve: function (chunk) {
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this.recievedBytes += chunk.length;
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},
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assert: function () {
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assert.equal(this.sendBytes, this.recievedBytes, "data bytes send and recieved has to match");
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}
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};
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var buf1 = new Buffer("asdfasd"),
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buf2 = new Buffer("q03r90arf0aospd;"),
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buf3 = new Buffer(542),
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buf4 = new Buffer("93jfemialfjkasjlfas");
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test('CopyToStream simple', function () {
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var stream = new CopyToStream(),
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dc = new DataCounter();
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assert.emits(stream, 'end', function () {}, '');
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stream.on('data', dc.recieve.bind(dc));
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stream.handleChunk(dc.send(buf1));
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stream.handleChunk(dc.send(buf2));
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stream.handleChunk(dc.send(buf3));
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stream.handleChunk(dc.send(buf4));
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dc.assert();
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stream.close();
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});
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test('CopyToStream pause/resume/close', function () {
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var stream = new CopyToStream(),
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dc = new DataCounter();
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stream.on('data', dc.recieve.bind(dc));
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assert.emits(stream, 'end', function () {}, 'stream has to emit end after closing');
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stream.pause();
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stream.handleChunk(dc.send(buf1));
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stream.handleChunk(dc.send(buf2));
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stream.handleChunk(dc.send(buf3));
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assert.equal(dc.recievedBytes, 0);
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stream.resume();
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dc.assert();
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stream.handleChunk(dc.send(buf2));
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dc.assert();
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stream.handleChunk(dc.send(buf3));
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dc.assert();
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stream.pause();
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stream.handleChunk(dc.send(buf4));
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assert(dc.sendBytes - dc.recievedBytes, buf4.length, "stream has not emit, data while it is in paused state");
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stream.resume();
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dc.assert();
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stream.close();
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});
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test('CopyToStream error', function () {
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var stream = new CopyToStream(),
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dc = new DataCounter();
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stream.on('data', dc.recieve.bind(dc));
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assert.emits(stream, 'error', function () {}, 'stream has to emit error event, when error method called');
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stream.handleChunk(dc.send(buf1));
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stream.handleChunk(dc.send(buf2));
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stream.error(new Error('test error'));
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});
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test('CopyToStream do not emit anything while paused', function () {
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var stream = new CopyToStream();
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stream.on('data', function () {
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assert.ok(false, "stream has not emit data when paused");
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});
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stream.on('end', function () {
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assert.ok(false, "stream has not emit end when paused");
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});
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stream.on('error', function () {
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assert.ok(false, "stream has not emit end when paused");
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});
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stream.pause();
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stream.handleChunk(buf2);
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stream.close();
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stream.error();
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});
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test('CopyToStream emit data and error after resume', function () {
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var stream = new CopyToStream(),
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paused;
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stream.on('data', function () {
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assert.ok(!paused, "stream has not emit data when paused");
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});
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stream.on('end', function () {
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assert.ok(!paused, "stream has not emit end when paused");
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});
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stream.on('error', function () {
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assert.ok(!paused, "stream has not emit end when paused");
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});
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paused = true;
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stream.pause();
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stream.handleChunk(buf2);
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stream.error();
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paused = false;
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stream.resume();
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});
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test('CopyToStream emit data and end after resume', function () {
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var stream = new CopyToStream(),
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paused;
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stream.on('data', function () {
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assert.ok(!paused, "stream has not emit data when paused");
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});
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stream.on('end', function () {
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assert.ok(!paused, "stream has not emit end when paused");
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});
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stream.on('error', function () {
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assert.ok(!paused, "stream has not emit end when paused");
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});
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paused = true;
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stream.pause();
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stream.handleChunk(buf2);
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stream.close();
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paused = false;
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stream.resume();
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});
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