sku-pg

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Skulpt is a Javascript implementation of Python 2.x. Python that runs in your browser!
www.skulpt.org
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HTML
<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.

Use of this source code is governed by an Apache 2.0 License.
See the COPYING file for details.
-->
<!--
  Author: adeboor@google.com (Adam de Boor)
-->
<head>
<title>Closure Unit Tests - goog.debug.ErrorHandler</title>
<!-- These paths should be relative to the test -->
<script src="../base.js"></script>
<script>
  goog.require('goog.testing.jsunit');
  goog.require('goog.debug.ErrorHandler');
</script>
</head>
<body>
<script>

  var oldGetObjectByName;
  var fakeWin;
  var errorHandler;

  function badTimer() {
    arguments.callee.called = true;
    throw "die die die";
  }

  function setUp() {
    oldGetObjectByName = goog.getObjectByName;
    goog.getObjectByName = function(name) {
      if (name == 'window') {
        // provide our own window that implements our instrumented and
        // immediate-call versions of setTimeout and setInterval
        if (!fakeWin) {
          fakeWin = {
            setTimeout: function(fn, time) {
              fakeWin.setTimeout.called = true;
              fakeWin.setTimeout.that = this;
              fn();
            },
            setInterval: function(fn, time) {
              fakeWin.setInterval.called = true;
              fakeWin.setInterval.that = this;
              fn();
            }
          };
        }
        return fakeWin;
      } else {
        return oldGetObjectByName(name);
      };
    }

    // just record the exception in the error handler when it happens
    errorHandler = new goog.debug.ErrorHandler(function(ex) {
                                                 this.ex = ex;
                                               });
  }

  function tearDown() {
    goog.getObjectByName = oldGetObjectByName;
    fakeWin = null;
    errorHandler = null;
    delete badTimer['__protected__'];
  }

  function testWrapSetTimeout() {
    errorHandler.protectWindowSetTimeout();

    var caught;

    try {
      fakeWin.setTimeout(badTimer, 3);
    } catch (ex) {
      caught = ex;
    }
    assertTrue('exception not thrown', !!caught);
    assertEquals('exception not caught by error handler',
                 caught, errorHandler.ex);
    assertTrue('fake setTimeout not called', !!fakeWin.setTimeout.called);
    assertTrue('"this" not passed to original setTimeout',
               fakeWin.setTimeout.that === fakeWin);
  }


  function testWrapSetInterval() {
    errorHandler.protectWindowSetInterval();

    var caught;

    try {
      fakeWin.setInterval(badTimer, 3);
    } catch (ex) {
      caught = ex;
    }
    assertTrue('exception not thrown', !!caught);
    assertEquals('exception not caught by error handler',
                 caught, errorHandler.ex);
    assertTrue('fake setInterval not called', !!fakeWin.setInterval.called);
    assertTrue('"this" not passed to original setTimeout',
               fakeWin.setInterval.that === fakeWin);
  }

</script>
</body>
</html>