1 files changed, 72 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream-big-packet.js b/tests/node_compat/test/parallel/test-stream-big-packet.js
new file mode 100644
index 000000000..4e816cc2d
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream-big-packet.js
@@ -0,0 +1,72 @@
+// 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 stream = require('stream');
+
+let passed = false;
+
+class TestStream extends stream.Transform {
+  _transform(chunk, encoding, done) {
+    if (!passed) {
+      // Char 'a' only exists in the last write
+      passed = chunk.toString().includes('a');
+    }
+    done();
+  }
+}
+
+const s1 = new stream.Transform({
+  transform(chunk, encoding, cb) {
+    process.nextTick(cb, null, chunk);
+  }
+});
+const s2 = new stream.PassThrough();
+const s3 = new TestStream();
+s1.pipe(s3);
+// Don't let s2 auto close which may close s3
+s2.pipe(s3, { end: false });
+
+// We must write a buffer larger than highWaterMark
+const big = Buffer.alloc(s1.writableHighWaterMark + 1, 'x');
+
+// Since big is larger than highWaterMark, it will be buffered internally.
+assert(!s1.write(big));
+// 'tiny' is small enough to pass through internal buffer.
+assert(s2.write('tiny'));
+
+// Write some small data in next IO loop, which will never be written to s3
+// Because 'drain' event is not emitted from s1 and s1 is still paused
+setImmediate(s1.write.bind(s1), 'later');
+
+// Assert after two IO loops when all operations have been done.
+process.on('exit', function() {
+  assert(passed, 'Large buffer is not handled properly by Writable Stream');
+});