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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const Transform = require('stream').Transform;
const parser = new Transform({ readableObjectMode: true });
assert(parser._readableState.objectMode);
assert(!parser._writableState.objectMode);
assert.strictEqual(parser.readableHighWaterMark, 16);
assert.strictEqual(parser.writableHighWaterMark, 16 * 1024);
assert.strictEqual(parser.readableHighWaterMark,
parser._readableState.highWaterMark);
assert.strictEqual(parser.writableHighWaterMark,
parser._writableState.highWaterMark);
parser._transform = function(chunk, enc, callback) {
callback(null, { val: chunk[0] });
};
let parsed;
parser.on('data', function(obj) {
parsed = obj;
});
parser.end(Buffer.from([42]));
process.on('exit', function() {
assert.strictEqual(parsed.val, 42);
});
const serializer = new Transform({ writableObjectMode: true });
assert(!serializer._readableState.objectMode);
assert(serializer._writableState.objectMode);
assert.strictEqual(serializer.readableHighWaterMark, 16 * 1024);
assert.strictEqual(serializer.writableHighWaterMark, 16);
assert.strictEqual(parser.readableHighWaterMark,
parser._readableState.highWaterMark);
assert.strictEqual(parser.writableHighWaterMark,
parser._writableState.highWaterMark);
serializer._transform = function(obj, _, callback) {
callback(null, Buffer.from([obj.val]));
};
let serialized;
serializer.on('data', function(chunk) {
serialized = chunk;
});
serializer.write({ val: 42 });
process.on('exit', function() {
assert.strictEqual(serialized[0], 42);
});
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