1 files changed, 43 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream-pipe-await-drain-push-while-write.js b/tests/node_compat/test/parallel/test-stream-pipe-await-drain-push-while-write.js
new file mode 100644
index 000000000..54fbe9e89
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream-pipe-await-drain-push-while-write.js
@@ -0,0 +1,43 @@
+// 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.
+
+'use strict';
+const common = require('../common');
+const stream = require('stream');
+const assert = require('assert');
+
+const writable = new stream.Writable({
+  write: common.mustCall(function(chunk, encoding, cb) {
+    assert.strictEqual(
+      readable._readableState.awaitDrainWriters,
+      null,
+    );
+
+    if (chunk.length === 32 * 1024) { // first chunk
+      readable.push(Buffer.alloc(34 * 1024)); // above hwm
+      // We should check if awaitDrain counter is increased in the next
+      // tick, because awaitDrain is incremented after this method finished
+      process.nextTick(() => {
+        assert.strictEqual(readable._readableState.awaitDrainWriters, writable);
+      });
+    }
+
+    process.nextTick(cb);
+  }, 3)
+});
+
+// A readable stream which produces two buffers.
+const bufs = [Buffer.alloc(32 * 1024), Buffer.alloc(33 * 1024)]; // above hwm
+const readable = new stream.Readable({
+  read: function() {
+    while (bufs.length > 0) {
+      this.push(bufs.shift());
+    }
+  }
+});
+
+readable.pipe(writable);