1 files changed, 89 insertions, 0 deletions
diff --git a/js/src/tests/ecma_5/JSON/parse-reviver-array-delete.js b/js/src/tests/ecma_5/JSON/parse-reviver-array-delete.js
new file mode 100644
index 000000000..c34305878
--- /dev/null
+++ b/js/src/tests/ecma_5/JSON/parse-reviver-array-delete.js
@@ -0,0 +1,89 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+var gTestfile = 'parse-reviver-array-delete.js';
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 999999;
+var summary = "JSON.parse with a reviver which elides array elements";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+/*
+ * The reviver deletes all properties from the to-be-returned array.  Thus
+ * stringification reveals properties on the prototype chain -- but there are
+ * none, so this result is unsurprising.
+ */
+assertEq(JSON.parse('[1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0]',
+                    function revive(k, v)
+                    {
+                      if (k === "")
+                        return v;
+                      return undefined;
+                    }) + "",
+         ",,,,,,,,,,,,,,,,,,,");
+
+/*
+ * Now let's try a reviver that deletes every property but a mega-huge one.
+ */
+var str = "[";
+var expected = "";
+var expected2 = "";
+for (var i = 0; i < 2048; i++)
+{
+  str += "1,";
+  if (i === 2047)
+  {
+    expected += "1";
+    expected2 += "1";
+  }
+  if (i === 3)
+    expected2 += "17";
+  expected += ",";
+  expected2 += ",";
+}
+str += "1]";
+
+assertEq(JSON.parse(str,
+                    function reviver(k, v)
+                    {
+                      if (k === "" || k === "2047")
+                        return v;
+                      return undefined;
+                    }) + "",
+         expected);
+
+
+Array.prototype[3] = 17;
+
+/* Now, with a property on the prototype chain, it'll show through. */
+assertEq(JSON.parse('[1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9,0]',
+                    function revive(k, v)
+                    {
+                      if (k === "")
+                        return v;
+                      return undefined;
+                    }) + "",
+         ",,,17,,,,,,,,,,,,,,,,");
+
+
+/* And here too. */
+assertEq(JSON.parse(str,
+                    function reviver(k, v)
+                    {
+                      if (k === "" || k === "2047")
+                        return v;
+                      return undefined;
+                    }) + "",
+         expected2);
+
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");