Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 34 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Array/from/elements-deleted-after.js b/js/src/tests/test262/built-ins/Array/from/elements-deleted-after.js
new file mode 100644
index 0000000000..dd834138fd
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/from/elements-deleted-after.js
@@ -0,0 +1,34 @@
+// Copyright 2015 Microsoft Corporation. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+description: >
+    Elements deleted after the call started and before visited are not
+    visited
+esid: sec-array.from
+---*/
+
+var originalArray = [0, 1, -2, 4, -8, 16];
+var array = [0, 1, -2, 4, -8, 16];
+var a = [];
+var arrayIndex = -1;
+
+function mapFn(value, index) {
+  this.arrayIndex++;
+  assert.sameValue(value, array[this.arrayIndex], "Value mismatch in mapFn at index " + index + ".");
+  assert.sameValue(index, this.arrayIndex, "Index mismatch in mapFn.");
+
+  array.splice(array.length - 1, 1);
+  return 127;
+}
+
+
+a = Array.from(array, mapFn, this);
+
+assert.sameValue(a.length, originalArray.length / 2, "Length mismatch. Old array : " + (originalArray.length / 2) + ". array : " + a.length + ".");
+
+for (var j = 0; j < originalArray.length / 2; j++) {
+  assert.sameValue(a[j], 127, "Element mismatch for mapped array at index " + j + ".");
+}
+
+reportCompare(0, 0);