timing_test(function() {
  at(0, function() {
    assert_styles('#test', {'z-index':'0'});
  }, "Autogenerated");
  at(0.3, function() {
    assert_styles('#test', {'z-index':'10'});
  }, "Autogenerated");
  at(0.6, function() {
    assert_styles('#test', {'z-index':'20'});
  }, "Autogenerated");
  at(0.8999999999999999, function() {
    assert_styles('#test', {'z-index':'30'});
  }, "Autogenerated");
  at(1.2, function() {
    assert_styles('#test', {'z-index':'40'});
  }, "Autogenerated");
  at(1.5, function() {
    assert_styles('#test', {'z-index':'50'});
  }, "Autogenerated");
  at(1.8, function() {
    assert_styles('#test', {'z-index':'60'});
  }, "Autogenerated");
  at(2.1, function() {
    assert_styles('#test', {'z-index':'70'});
  }, "Autogenerated");
  at(2.4, function() {
    assert_styles('#test', {'z-index':'80'});
  }, "Autogenerated");
  at(2.6999999999999997, function() {
    assert_styles('#test', {'z-index':'89'});
  }, "Autogenerated");
  at(2.9999999999999996, function() {
    assert_styles('#test', {'z-index':'99'});
  }, "Autogenerated");
  at(3.2999999999999994, function() {
    assert_styles('#test', {'z-index':'100'});
  }, "Autogenerated");
}, "Autogenerated checks.");
