Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Map/map-iterable-empty-does-not-call-set.js b/js/src/tests/test262/built-ins/Map/map-iterable-empty-does-not-call-set.js
new file mode 100644
index 0000000000..b561e0a8f1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Map/map-iterable-empty-does-not-call-set.js
@@ -0,0 +1,33 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 23.1.1.1
+description: >
+  A Map constructed with an empty iterable argument does not call set.
+info: |
+  Map ( [ iterable ] )
+
+  When the Map function is called with optional argument the following steps are
+  taken:
+
+  ...
+  8. If iter is undefined, return map.
+  9. Repeat
+    a. Let next be IteratorStep(iter).
+    b. ReturnIfAbrupt(next).
+    c. If next is false, return map.
+---*/
+
+var set = Map.prototype.set;
+var counter = 0;
+
+Map.prototype.set = function(value) {
+  counter++;
+  set.call(this, value);
+};
+
+new Map([]);
+
+assert.sameValue(counter, 0, '`Map.prototype.set` was not called.');
+
+reportCompare(0, 0);