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'use strict';
require('../common');
var assert = require('assert');
var R = require('_stream_readable');
var util = require('util');
// tiny node-tap lookalike.
var tests = [];
var count = 0;
function test(name, fn) {
count++;
tests.push([name, fn]);
}
function run() {
var next = tests.shift();
if (!next)
return console.error('ok');
var name = next[0];
var fn = next[1];
console.log('# %s', name);
fn({
same: assert.deepStrictEqual,
equal: assert.equal,
end: function() {
count--;
run();
}
});
}
// ensure all tests have run
process.on('exit', function() {
assert.equal(count, 0);
});
process.nextTick(run);
/////
util.inherits(TestReader, R);
function TestReader(n, opts) {
R.call(this, opts);
this.pos = 0;
this.len = n || 100;
}
TestReader.prototype._read = function(n) {
setTimeout(function() {
if (this.pos >= this.len) {
// double push(null) to test eos handling
this.push(null);
return this.push(null);
}
n = Math.min(n, this.len - this.pos);
if (n <= 0) {
// double push(null) to test eos handling
this.push(null);
return this.push(null);
}
this.pos += n;
var ret = Buffer.alloc(n, 'a');
console.log('this.push(ret)', ret);
return this.push(ret);
}.bind(this), 1);
};
test('setEncoding utf8', function(t) {
var tr = new TestReader(100);
tr.setEncoding('utf8');
var out = [];
var expect =
[ 'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('setEncoding hex', function(t) {
var tr = new TestReader(100);
tr.setEncoding('hex');
var out = [];
var expect =
[ '6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('setEncoding hex with read(13)', function(t) {
var tr = new TestReader(100);
tr.setEncoding('hex');
var out = [];
var expect =
[ '6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'16161' ];
tr.on('readable', function flow() {
console.log('readable once');
var chunk;
while (null !== (chunk = tr.read(13)))
out.push(chunk);
});
tr.on('end', function() {
console.log('END');
t.same(out, expect);
t.end();
});
});
test('setEncoding base64', function(t) {
var tr = new TestReader(100);
tr.setEncoding('base64');
var out = [];
var expect =
[ 'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYQ==' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('encoding: utf8', function(t) {
var tr = new TestReader(100, { encoding: 'utf8' });
var out = [];
var expect =
[ 'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa',
'aaaaaaaaaa' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('encoding: hex', function(t) {
var tr = new TestReader(100, { encoding: 'hex' });
var out = [];
var expect =
[ '6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161',
'6161616161' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('encoding: hex with read(13)', function(t) {
var tr = new TestReader(100, { encoding: 'hex' });
var out = [];
var expect =
[ '6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'1616161616161',
'6161616161616',
'16161' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(13)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('encoding: base64', function(t) {
var tr = new TestReader(100, { encoding: 'base64' });
var out = [];
var expect =
[ 'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYWFhYWFh',
'YWFhYWFhYW',
'FhYQ==' ];
tr.on('readable', function flow() {
var chunk;
while (null !== (chunk = tr.read(10)))
out.push(chunk);
});
tr.on('end', function() {
t.same(out, expect);
t.end();
});
});
test('chainable', function(t) {
var tr = new TestReader(100);
t.equal(tr.setEncoding('utf8'), tr);
t.end();
});