url-with-xhr.any.js

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This WPT test may be referenced by the following Test IDs:
- /FileAPI/url/url-with-xhr.any.html - WPT Dashboard Interop Dashboard
- /FileAPI/url/url-with-xhr.any.worker.html - WPT Dashboard Interop Dashboard

// META: script=resources/fetch-tests.js

function xhr_should_succeed(test, url) {

  return new Promise((resolve, reject) => {

    const xhr = new XMLHttpRequest();

    xhr.open('GET', url);

    xhr.onload = test.step_func(() => {

      assert_equals(xhr.status, 200);

      assert_equals(xhr.statusText, 'OK');

      resolve(xhr.response);

});

    xhr.onerror = () => reject('Got unexpected error event');

    xhr.send();

});

function xhr_should_fail(test, url, method = 'GET') {

  const xhr = new XMLHttpRequest();

  xhr.open(method, url);

  const result1 = new Promise((resolve, reject) => {

    xhr.onload = () => reject('Got unexpected load event');

    xhr.onerror = resolve;

});

  const result2 = new Promise(resolve => {

    xhr.onreadystatechange = test.step_func(() => {

      if (xhr.readyState !== xhr.DONE) return;

      assert_equals(xhr.status, 0);

      resolve();

});

});

  xhr.send();

  return Promise.all([result1, result2]);

fetch_tests('XHR', xhr_should_succeed, xhr_should_fail);

async_test(t => {

  const blob_contents = 'test blob contents';

  const blob_type = 'image/png';

  const blob = new Blob([blob_contents], {type: blob_type});

  const url = URL.createObjectURL(blob);

  const xhr = new XMLHttpRequest();

  xhr.open('GET', url);

  xhr.onloadend = t.step_func_done(() => {

    assert_equals(xhr.getResponseHeader('Content-Type'), blob_type);

});

  xhr.send();

}, 'XHR should return Content-Type from Blob');

async_test(t => {

  const blob_contents = 'test blob contents';

  const blob = new Blob([blob_contents]);

  const url = URL.createObjectURL(blob);

  const xhr = new XMLHttpRequest();

  xhr.open('GET', url);

  // Revoke the object URL.  XHR should take a reference to the blob as soon as

  // it receives it in open(), so the request succeeds even though we revoke the

  // URL before calling send().

  URL.revokeObjectURL(url);

  xhr.onload = t.step_func_done(() => {

    assert_equals(xhr.response, blob_contents);

});

  xhr.onerror = t.unreached_func('Got unexpected error event');

  xhr.send();

}, 'Revoke blob URL after open(), will fetch');