1 files changed, 63 insertions, 0 deletions
diff --git a/tests/node_compat/test/parallel/test-fs-write-sync.js b/tests/node_compat/test/parallel/test-fs-write-sync.js
new file mode 100644
index 000000000..8d9ee9efe
--- /dev/null
+++ b/tests/node_compat/test/parallel/test-fs-write-sync.js
@@ -0,0 +1,63 @@
+// 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 path = require('path');
+const fs = require('fs');
+const tmpdir = require('../common/tmpdir');
+const filename = path.join(tmpdir.path, 'write.txt');
+
+tmpdir.refresh();
+
+{
+  const parameters = [Buffer.from('bár'), 0, Buffer.byteLength('bár')];
+
+  // The first time fs.writeSync is called with all parameters provided.
+  // After that, each pop in the cycle removes the final parameter. So:
+  // - The 2nd time fs.writeSync with a buffer, without the length parameter.
+  // - The 3rd time fs.writeSync with a buffer, without the offset and length
+  //   parameters.
+  while (parameters.length > 0) {
+    const fd = fs.openSync(filename, 'w');
+
+    let written = fs.writeSync(fd, '');
+    assert.strictEqual(written, 0);
+
+    fs.writeSync(fd, 'foo');
+
+    written = fs.writeSync(fd, ...parameters);
+    assert.ok(written > 3);
+    fs.closeSync(fd);
+
+    assert.strictEqual(fs.readFileSync(filename, 'utf-8'), 'foobár');
+
+    parameters.pop();
+  }
+}