1 files changed, 108 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-stream2-readable-from-list.js b/tests/node_compat/test/parallel/test-stream2-readable-from-list.js
new file mode 100644
index 000000000..90f93d040
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-stream2-readable-from-list.js
@@ -0,0 +1,108 @@
+// 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.
+
+// Flags: --expose-internals
+'use strict';
+require('../common');
+const assert = require('assert');
+const fromList = require('stream').Readable._fromList;
+const BufferList = require('internal/streams/buffer_list');
+const util = require('util');
+
+function bufferListFromArray(arr) {
+  const bl = new BufferList();
+  for (let i = 0; i < arr.length; ++i)
+    bl.push(arr[i]);
+  return bl;
+}
+
+{
+  // Verify behavior with buffers
+  let list = [ Buffer.from('foog'),
+               Buffer.from('bark'),
+               Buffer.from('bazy'),
+               Buffer.from('kuel') ];
+  list = bufferListFromArray(list);
+
+  assert.strictEqual(
+    util.inspect([ list ], { compact: false }),
+    `[
+  BufferList {
+    head: [Object],
+    tail: [Object],
+    length: 4
+  }
+]`);
+
+  // Read more than the first element.
+  let ret = fromList(6, { buffer: list, length: 16 });
+  assert.strictEqual(ret.toString(), 'foogba');
+
+  // Read exactly the first element.
+  ret = fromList(2, { buffer: list, length: 10 });
+  assert.strictEqual(ret.toString(), 'rk');
+
+  // Read less than the first element.
+  ret = fromList(2, { buffer: list, length: 8 });
+  assert.strictEqual(ret.toString(), 'ba');
+
+  // Read more than we have.
+  ret = fromList(100, { buffer: list, length: 6 });
+  assert.strictEqual(ret.toString(), 'zykuel');
+
+  // all consumed.
+  assert.deepStrictEqual(list, new BufferList());
+}
+
+{
+  // Verify behavior with strings
+  let list = [ 'foog',
+               'bark',
+               'bazy',
+               'kuel' ];
+  list = bufferListFromArray(list);
+
+  // Read more than the first element.
+  let ret = fromList(6, { buffer: list, length: 16, decoder: true });
+  assert.strictEqual(ret, 'foogba');
+
+  // Read exactly the first element.
+  ret = fromList(2, { buffer: list, length: 10, decoder: true });
+  assert.strictEqual(ret, 'rk');
+
+  // Read less than the first element.
+  ret = fromList(2, { buffer: list, length: 8, decoder: true });
+  assert.strictEqual(ret, 'ba');
+
+  // Read more than we have.
+  ret = fromList(100, { buffer: list, length: 6, decoder: true });
+  assert.strictEqual(ret, 'zykuel');
+
+  // all consumed.
+  assert.deepStrictEqual(list, new BufferList());
+}