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'use strict';
require('../common');
var assert = require('assert');
// If everything aligns so that you do a read(n) of exactly the
// remaining buffer, then make sure that 'end' still emits.
var READSIZE = 100;
var PUSHSIZE = 20;
var PUSHCOUNT = 1000;
var HWM = 50;
var Readable = require('stream').Readable;
var r = new Readable({
highWaterMark: HWM
});
var rs = r._readableState;
r._read = push;
r.on('readable', function() {
console.error('>> readable');
do {
console.error(' > read(%d)', READSIZE);
var ret = r.read(READSIZE);
console.error(' < %j (%d remain)', ret && ret.length, rs.length);
} while (ret && ret.length === READSIZE);
console.error('<< after read()',
ret && ret.length,
rs.needReadable,
rs.length);
});
var endEmitted = false;
r.on('end', function() {
endEmitted = true;
console.error('end');
});
var pushes = 0;
function push() {
if (pushes > PUSHCOUNT)
return;
if (pushes++ === PUSHCOUNT) {
console.error(' push(EOF)');
return r.push(null);
}
console.error(' push #%d', pushes);
if (r.push(Buffer.allocUnsafe(PUSHSIZE)))
setTimeout(push);
}
process.on('exit', function() {
assert.equal(pushes, PUSHCOUNT + 1);
assert(endEmitted);
});
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