39   const ev = new Event('foo');  constant
40   strictEqual(ev.type, 'foo');
41   strictEqual(ev.cancelable, false);
42   strictEqual(ev.defaultPrevented, false);
43   strictEqual(typeof ev.timeStamp, 'number');
46   deepStrictEqual(ev.composedPath(), []);
47   strictEqual(ev.returnValue, true);
48   strictEqual(ev.bubbles, false);
49   strictEqual(ev.composed, false);
50   strictEqual(ev.isTrusted, false);
51   strictEqual(ev.eventPhase, 0);
52   strictEqual(ev.cancelBubble, false);
55   ev.preventDefault();
56   strictEqual(ev.defaultPrevented, false);
73   const ev = new Event('foo');  constant
74   strictEqual(ev.cancelBubble, false);
75   ev.cancelBubble = true;
76   strictEqual(ev.cancelBubble, true);
79   const ev = new Event('foo');  constant
80   strictEqual(ev.cancelBubble, false);
81   ev.stopPropagation();
82   strictEqual(ev.cancelBubble, true);
85   const ev = new Event('foo');  constant
86   strictEqual(ev.cancelBubble, false);
87   ev.cancelBubble = 'some-truthy-value';
88   strictEqual(ev.cancelBubble, true);
96   const ev = new Event('foo', {}, {});  constant
97   strictEqual(ev.type, 'foo');
100   const ev = new Event('foo');  constant
101   strictEqual(ev.cancelBubble, false);
102   ev.cancelBubble = true;
103   strictEqual(ev.cancelBubble, true);
106   const ev = new Event('foo');  constant
107   strictEqual(ev.cancelBubble, false);
108   ev.stopPropagation();
109   strictEqual(ev.cancelBubble, true);
112   const ev = new Event('foo');  constant
113   strictEqual(ev.cancelBubble, false);
114   ev.cancelBubble = 'some-truthy-value';
115   strictEqual(ev.cancelBubble, true);
118   const ev = new Event('foo', { cancelable: true });  constant
119   strictEqual(ev.type, 'foo');
120   strictEqual(ev.cancelable, true);
121   strictEqual(ev.defaultPrevented, false);
123   ev.preventDefault();
124   strictEqual(ev.defaultPrevented, true);
128   const ev = new Event('foo');  constant
129   strictEqual(ev.isTrusted, false);
158   const ev = new SubEvent('foo');  constant
160   const fn = common.mustCall((event) => strictEqual(event, ev));
162   eventTarget.dispatchEvent(ev);
291   const ev = common.mustCall((event) => {  constant
297   eventTarget.addEventListener('foo', ev, { once: true });
512   const ev = new Event('toString');  constant
515   target.dispatchEvent(ev);
519   const ev = new Event('__proto__');  constant
522   target.dispatchEvent(ev);
628   const ev = new Event('test');  constant
629   const evConstructorName = inspect(ev, {
634   const inspectResult = inspect(ev, {
649   const ev = new Event('test');  constant
650   strictEqual(ev.constructor.name, 'Event');