<!DOCTYPE html>
<!--
 | This is not a real layout test but rather a manual test for |console.trace()|
 | which prints JavaScript stack trace. When run in automated mode, it will only
 | ensure that invocation to |console.trace()| do not crash under various
 | circumstances.
 -->
<!-- TODO: Figure out how to test debug console functionality, given that most
           of it is unobservable by user code. -->
<html>
<head>
  <title></title>
</head>
<body>
  <script>
    // Call from top-level frame.
    //
    // Expected output:
    //   (anonymous function) @ console-trace-should-not-crash.html:21

    console.trace();
  </script>

  <script>
    // Call from non-top-level frame.
    //
    // Expected output:
    //   z @ console-trace-should-not-crash.html:34
    //   y @ console-trace-should-not-crash.html:38
    //   x @ console-trace-should-not-crash.html:42
    //   (anonymous function) @ console-trace-should-not-crash.html:45

    function z() {
      console.trace();
    }

    function y() {
      z();
    }

    function x() {
      y();
    }

    x();
  </script>

  <script>
    // Call from recursive function.
    //
    // Expected output:
    //   a @ console-trace-should-not-crash.html:67
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   a @ console-trace-should-not-crash.html:69
    //   (anonymous function) @ console-trace-should-not-crash.html:73

    function a(i) {
      if (i == 10) {
        console.trace();
      } else {
        a(i + 1);
      }
    }

    a(0);
  </script>

  <!-- Call from external JavaScript file. -->
  <script src="console-trace-should-not-crash.js"></script>
</body>
</html>