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-rw-r--r--js/src/tests/non262/extensions/clone-many-transferables.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/clone-many-transferables.js b/js/src/tests/non262/extensions/clone-many-transferables.js
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+++ b/js/src/tests/non262/extensions/clone-many-transferables.js
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+// |reftest| slow skip-if(!xulRuntime.shell) -- requires serialize()
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+function test()
+{
+ // On my system, with an unfixed build where transfer-list processing is
+ // quadratic, 5e5 elements makes this test take ~70s in a shell opt build.
+ // Debug build is well into timeout-land at 300+s. As long as at least *one*
+ // platform times out for a quadratic algorithm, a regression should be
+ // obvious. (Time to run the test in even a debug shell is ~17s, well short
+ // of timing out.)
+ var transfers = [];
+ for (var i = 0; i < 5e5; i++)
+ transfers.push(new ArrayBuffer());
+
+ // If serialization is quadratic in the length of |transfers|, the test will
+ // time out. If the test doesn't time out, it passed.
+ serialize({}, transfers);
+}
+
+test();
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0, 'ok');