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var ExtendableMessageEventUtils = {};
// Create a representation of a given ExtendableMessageEvent that is suitable
// for transmission via the `postMessage` API.
ExtendableMessageEventUtils.serialize = function(event) {
var ports = event.ports.map(function(port) {
return { constructor: { name: port.constructor.name } };
});
return {
constructor: {
name: event.constructor.name
},
origin: event.origin,
lastEventId: event.lastEventId,
source: {
constructor: {
name: event.source.constructor.name
},
url: event.source.url,
frameType: event.source.frameType,
visibilityState: event.source.visibilityState,
focused: event.source.focused
},
ports: ports
};
};
// Compare the actual and expected values of an ExtendableMessageEvent that has
// been transformed using the `serialize` function defined in this file.
ExtendableMessageEventUtils.assert_equals = function(actual, expected) {
assert_equals(
actual.constructor.name, expected.constructor.name, 'event constructor'
);
assert_equals(actual.origin, expected.origin, 'event `origin` property');
assert_equals(
actual.lastEventId,
expected.lastEventId,
'event `lastEventId` property'
);
assert_equals(
actual.source.constructor.name,
expected.source.constructor.name,
'event `source` property constructor'
);
assert_equals(
actual.source.url, expected.source.url, 'event `source` property `url`'
);
assert_equals(
actual.source.frameType,
expected.source.frameType,
'event `source` property `frameType`'
);
assert_equals(
actual.source.visibilityState,
expected.source.visibilityState,
'event `source` property `visibilityState`'
);
assert_equals(
actual.source.focused,
expected.source.focused,
'event `source` property `focused`'
);
assert_equals(
actual.ports.length,
expected.ports.length,
'event `ports` property length'
);
for (var idx = 0; idx < expected.ports.length; ++idx) {
assert_equals(
actual.ports[idx].constructor.name,
expected.ports[idx].constructor.name,
'MessagePort #' + idx + ' constructor'
);
}
};