Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 31 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/Iterator/prototype/flatMap/next-method-returns-throwing-value-done.js b/js/src/tests/test262/built-ins/Iterator/prototype/flatMap/next-method-returns-throwing-value-done.js
new file mode 100644
index 0000000000..0a7a96a199
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Iterator/prototype/flatMap/next-method-returns-throwing-value-done.js
@@ -0,0 +1,31 @@
+// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options
+// Copyright (C) 2023 Michael Ficarra. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-iteratorprototype.flatMap
+description: >
+  Underlying iterator next returns object with throwing value getter, but is already done
+info: |
+  %Iterator.prototype%.flatMap ( mapper )
+
+features: [iterator-helpers]
+flags: []
+---*/
+class ThrowingIterator extends Iterator {
+  next() {
+    return {
+      done: true,
+      get value() {
+        throw new Test262Error();
+      },
+    };
+  }
+  return() {
+    throw new Error();
+  }
+}
+
+let iterator = new ThrowingIterator().flatMap(x => [x]);
+iterator.next();
+
+reportCompare(0, 0);