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Revise tests to take fake postMessage()

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Eddie Antonio Santos 2018-11-30 12:28:43 -07:00
parent d262c37025
commit ca510acd61
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1 changed files with 17 additions and 9 deletions
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26
common/predictive-text/unit_tests/headless/top-level-lmlayer.js
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@ -31,7 +31,7 @@ describe('LMLayer', function() {
});
it('should send the `initialize` message to the LMLayer', async function () {
let fakeWorker = createFakeWorker();
let fakeWorker = createFakeWorker(fakePostMessage);
let lmLayer = new LMLayer(fakeWorker);
let configuration = await lmLayer.initialize(
{
@ -44,11 +44,20 @@ describe('LMLayer', function() {
);
assert.propertyVal(fakeWorker.postMessage, 'callCount', 1);
assert(fakeWorker.postMessage.calledOnceWith(sinon.match({
message: 'initialize',
capabilities: sinon.match.any(),
model: sinon.match.any()
})));
// In the "Worker", assert the message structure and reply.
function fakePostMessage(data) {
assert.propertyVal(data, 'message', 'initialize')
assert.isObject(data.capabilities);
assert.isObject(data.model);
// send the message on setTimeout() to emulate "asynchronous" call.
setTimeout(() => fakeWorker.onmessage({
data: {
message: 'ready',
configuration: {}
}
}), 0);
}
assert.isObject(configuration);
});
});
@ -74,10 +83,9 @@ describe('LMLayer', function() {
*
* @returns {Worker} an object with sinon.fake() instances.
*/
function createFakeWorker() {
function createFakeWorker(postMessage) {
return {
// TODO: this should reply
postMessage: sinon.fake(),
postMessage: postMessage ? sinon.fake(postMessage) : sinon.fake(),
onmessage: null
};
}