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test(() => {
const event = new StorageEvent('storage');
assert_throws_js(TypeError, () => event.initStorageEvent());
// should be redundant, but .length can be wrong with custom bindings
assert_equals(event.initStorageEvent.length, 1, 'event.initStorageEvent.length');
}, 'initStorageEvent with 0 arguments');
test(() => {
const event = new StorageEvent('storage');
event.initStorageEvent('type');
assert_equals(event.type, 'type', 'event.type');
assert_equals(event.bubbles, false, 'event.bubbles');
assert_equals(event.cancelable, false, 'event.cancelable');
assert_equals(event.key, null, 'event.key');
assert_equals(event.oldValue, null, 'event.oldValue');
assert_equals(event.newValue, null, 'event.newValue');
assert_equals(event.url, '', 'event.url');
assert_equals(event.storageArea, null, 'event.storageArea');
}, 'initStorageEvent with 1 argument');
test(() => {
assert_not_equals(localStorage, null, 'localStorage'); // precondition
const event = new StorageEvent('storage');
event.initStorageEvent('type', true, true, 'key', 'oldValue', 'newValue', 'url', localStorage);
assert_equals(event.type, 'type', 'event.type');
assert_equals(event.bubbles, true, 'event.bubbles');
assert_equals(event.cancelable, true, 'event.cancelable');
assert_equals(event.key, 'key', 'event.key');
assert_equals(event.oldValue, 'oldValue', 'event.oldValue');
assert_equals(event.newValue, 'newValue', 'event.newValue');
assert_equals(event.url, 'url', 'event.url');
assert_equals(event.storageArea, localStorage, 'event.storageArea');
}, 'initStorageEvent with 8 sensible arguments');
test(() => {
const event = new StorageEvent('storage');
event.initStorageEvent(null, null, null, null, null, null, null, null);
assert_equals(event.type, 'null', 'event.type');
assert_equals(event.bubbles, false, 'event.bubbles');
assert_equals(event.cancelable, false, 'event.cancelable');
assert_equals(event.key, null, 'event.key');
assert_equals(event.oldValue, null, 'event.oldValue');
assert_equals(event.newValue, null, 'event.newValue');
assert_equals(event.url, 'null', 'event.url');
assert_equals(event.storageArea, null, 'event.storageArea');
}, 'initStorageEvent with 8 null arguments');
test(() => {
const event = new StorageEvent('storage');
event.initStorageEvent(undefined, undefined, undefined, undefined, undefined, undefined, undefined, undefined);
assert_equals(event.type, 'undefined', 'event.type');
assert_equals(event.bubbles, false, 'event.bubbles');
assert_equals(event.cancelable, false, 'event.cancelable');
assert_equals(event.key, null, 'event.key');
assert_equals(event.oldValue, null, 'event.oldValue');
assert_equals(event.newValue, null, 'event.newValue');
assert_equals(event.url, '', 'event.url');
assert_equals(event.storageArea, null, 'event.storageArea');
}, 'initStorageEvent with 8 undefined arguments');
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