54 lines
2.8 KiB
HTML
54 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Getting the presentation displays availability information.</title>
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<meta name="timeout" content="long">
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<link rel="author" title="Marius Wessel" href="http://www.fokus.fraunhofer.de">
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<link rel="author" title="Tomoyuki Shimizu" href="https://github.com/tomoyukilabs">
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<link rel="help" href="http://w3c.github.io/presentation-api/#dfn-presentation-display-availability">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="common.js"></script>
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<p>The test passes if a "PASS" result appears.</p>
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<script>
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// ---------------------------------------
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// Presentation Availability Tests - begin
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// ---------------------------------------
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const catchNotSupported = err => {
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assert_equals(err.name, 'NotSupportedError', 'getAvailability() rejects a Promise with a NotSupportedError exception, if the browser can find presentation displays only when starting a connection.')
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};
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promise_test(t => {
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let availability;
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const request = new PresentationRequest(presentationUrls);
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assert_true(request instanceof PresentationRequest, 'The request is an instance of PresentationRequest.');
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const promise = request.getAvailability();
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assert_true(promise instanceof Promise, 'PresentationRequest.getAvailability() returns a Promise.');
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const newPromise = request.getAvailability();
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assert_true(newPromise instanceof Promise, 'PresentationRequest.getAvailabilty() returns a Promise.');
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assert_not_equals(promise, newPromise, 'PresentationRequest.getAvailability() should return a new Promise each time it is called.');
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return promise.then(a => {
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availability = a;
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assert_true(availability instanceof PresentationAvailability, 'The promise is resolved with an instance of PresentationAvailability.');
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assert_equals(typeof availability.value, 'boolean', 'The availability has an boolean value.');
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const request2 = new PresentationRequest('https://example.com');
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return request2.getAvailability();
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}).then(a => {
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assert_not_equals(availability, a, 'A presentation availability object is newly created if the presentation request has a newly added presentation URLs.');
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const newPromise = request.getAvailability();
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assert_not_equals(promise, newPromise, 'PresentationRequest.getAvailability() should return a new Promise each time it is called.');
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return newPromise.then(newAvailability => {
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assert_equals(availability, newAvailability, 'Promises from a PresentationRequest\'s getAvailability are resolved with the same PresentationAvailability object.');
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}, catchNotSupported);
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}, catchNotSupported);
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});
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</script>
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