How to assert that a function does not raise an exception

QUnit has an assertion for testing that a function raises an exception (QUnit/raises). Is it possible -- using QUnit -- to assert that a function does not raise an exception.

I realize that it is possible to test it like in the following code:

try {
    theTest();
    ok(true);
} catch (e) {
    ok(false, "Expected to succeed");
}

But I think it ought to be possible using QUnit. Any clues?