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-rw-r--r--js/src/tests/js1_5/Regress/regress-261886.js29
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Regress/regress-261886.js b/js/src/tests/js1_5/Regress/regress-261886.js
new file mode 100644
index 000000000..45fbf27e6
--- /dev/null
+++ b/js/src/tests/js1_5/Regress/regress-261886.js
@@ -0,0 +1,29 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 261886;
+var summary = 'Always evaluate delete operand expression';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var o = {a:1};
+
+expect = 2;
+try
+{
+ delete ++o.a;
+ actual = o.a;
+}
+catch(e)
+{
+ actual = o.a;
+ summary += ' ' + e;
+}
+
+reportCompare(expect, actual, summary);