defaultRequest.https.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>Setting a default presentation request</title>

<link rel="author" title="Tomoyuki Shimizu" href="https://github.com/tomoyukilabs">

<link rel="help" href="http://w3c.github.io/presentation-api/#controlling-user-agent">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

  test(() => {

    assert_equals(navigator.presentation.defaultRequest, null, 'The initial value of the default presentation request is null.');

    const request = new PresentationRequest('https://example.org/');

    navigator.presentation.defaultRequest = request;

    assert_equals(navigator.presentation.defaultRequest, request, 'The default presentation request is set to an instance of PresentationRequest.');

    assert_throws_js(TypeError, () => {

      navigator.presentation.defaultRequest = {};

    }, 'The default presentation request cannot be set to any value but an instance of PresentationRequest or null.');

    navigator.presentation.defaultRequest = null;

    assert_equals(navigator.presentation.defaultRequest, null, 'The default presentation request is set to null.');

});

</script>