Upload Kmake

test/parallel/test-stream-writable-properties.js

@@ -0,0 +1,22 @@
+'use strict';
+require('../common');
+const assert = require('assert');
+
+const { Writable } = require('stream');
+
+{
+  const w = new Writable();
+  assert.strictEqual(w.writableCorked, 0);
+  w.uncork();
+  assert.strictEqual(w.writableCorked, 0);
+  w.cork();
+  assert.strictEqual(w.writableCorked, 1);
+  w.cork();
+  assert.strictEqual(w.writableCorked, 2);
+  w.uncork();
+  assert.strictEqual(w.writableCorked, 1);
+  w.uncork();
+  assert.strictEqual(w.writableCorked, 0);
+  w.uncork();
+  assert.strictEqual(w.writableCorked, 0);
+}