RTCPeerConnection-error-callback-exception.html

<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script>
// We expect the "oops!" exception to be reported to the global error handler.
setup({allow_uncaught_exception: true});

// This test fails if exceptions from the error callback are not properly
// caught (and may interfere with the code that schedules the test to end
// in a microtask).
async_test(t => {
  var pc = new RTCPeerConnection();
  pc.close();
  t.step_timeout(() => {
    pc.createOffer(
        t.unreached_func("closed connection should not create offer"),
        () => { throw new Error("oops!"); });

    // Reasonableness check: while the harness' built-in uncaught exception
    // handling is disabled, check that we only see the expected exception
    // as uncaught.
    addEventListener("error", t.step_func(e => {
      assert_equals(e.error.message, "oops!");
    }));

    // Finish the test only after the error callback should have run.
    // This is where weird stuff happens if exceptions aren't handled
    // properly.
    Promise.resolve().then(t.step_func_done());
  }, 0);
}, "Exceptions from error callback shouldn't break things.");
</script>

chromium/third_party/blink/web_tests/fast/peerconnection/RTCPeerConnection-error-callback-exception.html