1 files changed, 88 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream-transform-split-objectmode.js b/tests/node_compat/test/parallel/test-stream-transform-split-objectmode.js
new file mode 100644
index 000000000..22e2586df
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream-transform-split-objectmode.js
@@ -0,0 +1,88 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 18.12.1
+// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
+
+// 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);
+});