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'use strict';
require('../common');
const assert = require('assert');
const stream = require('stream');
const chunk = Buffer.from('hallo');
const util = require('util');
function TestWriter() {
stream.Writable.call(this);
}
util.inherits(TestWriter, stream.Writable);
TestWriter.prototype._write = function(buffer, encoding, callback) {
callback(null);
};
const dest = new TestWriter();
// Set this high so that we'd trigger a nextTick warning
// and/or RangeError if we do maybeReadMore wrong.
function TestReader() {
stream.Readable.call(this, { highWaterMark: 0x10000 });
}
util.inherits(TestReader, stream.Readable);
TestReader.prototype._read = function(size) {
this.push(chunk);
};
const src = new TestReader();
for (let i = 0; i < 10; i++) {
src.pipe(dest);
src.unpipe(dest);
}
assert.strictEqual(src.listeners('end').length, 0);
assert.strictEqual(src.listeners('readable').length, 0);
assert.strictEqual(dest.listeners('unpipe').length, 0);
assert.strictEqual(dest.listeners('drain').length, 0);
assert.strictEqual(dest.listeners('error').length, 0);
assert.strictEqual(dest.listeners('close').length, 0);
assert.strictEqual(dest.listeners('finish').length, 0);
console.error(src._readableState);
process.on('exit', function() {
src._readableState.buffer.length = 0;
console.error(src._readableState);
assert(src._readableState.length >= src._readableState.highWaterMark);
console.log('ok');
});
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