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Diffstat (limited to '')
-rw-r--r-- | testing/web-platform/tests/webmessaging/MessageEvent_onmessage_postMessage_infinite_loop.html | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/MessageEvent_onmessage_postMessage_infinite_loop.html b/testing/web-platform/tests/webmessaging/MessageEvent_onmessage_postMessage_infinite_loop.html new file mode 100644 index 0000000000..179bc0cc4a --- /dev/null +++ b/testing/web-platform/tests/webmessaging/MessageEvent_onmessage_postMessage_infinite_loop.html @@ -0,0 +1,31 @@ +<!DOCTYPE html> +<html> +<head> +<title>MessageEvent: onmessage infinite loop</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +</head> +<body> +<script> +'use strict'; + +// The test passes if the onmessage / postMessage loop does not prevent the +// step_timeout task from ever being run. In particular there should be no +// infinite loop or stack overflow. +async_test(function(t) { + var channel = new MessageChannel(); + var count = 0; + channel.port1.addEventListener("message", t.step_func(function() { + count++; + assert_less_than(count, 1000, "There were many message events without " + + "t.step_timeout ever being called."); + })); + channel.port1.addEventListener("message", t.step_func(function() { + channel.port2.postMessage(0); + })); + channel.port1.start(); + channel.port2.postMessage(0); + + t.step_timeout(function() { t.done(); }, 0); +}, "onmessage calling source postMessage"); +</script> |