xhr-content-length.https.window.js

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /service-workers/service-worker/xhr-content-length.https.window.html - WPT Dashboard Interop Dashboard

// META: script=resources/test-helpers.sub.js

let frame;

promise_test(async (t) => {

  const scope = "resources/empty.html";

  const script = "resources/xhr-content-length-worker.js";

  const registration = await service_worker_unregister_and_register(t, script, scope);

  await wait_for_state(t, registration.installing, "activated");

  frame = await with_iframe(scope);

}, "Setup");

promise_test(async t => {

  const xhr = new frame.contentWindow.XMLHttpRequest();

  xhr.open("GET", "test?type=no-content-length");

  xhr.send();

  const event = await new Promise(resolve => xhr.onload = resolve);

  assert_equals(xhr.getResponseHeader("content-length"), null);

  assert_false(event.lengthComputable);

  assert_equals(event.total, 0);

  assert_equals(event.loaded, xhr.responseText.length);

}, `Synthetic response without Content-Length header`);

promise_test(async t => {

  const xhr = new frame.contentWindow.XMLHttpRequest();

  xhr.open("GET", "test?type=larger-content-length");

  xhr.send();

  const event = await new Promise(resolve => xhr.onload = resolve);

  assert_equals(xhr.getResponseHeader("content-length"), "10000");

  assert_true(event.lengthComputable);

  assert_equals(event.total, 10000);

  assert_equals(event.loaded, xhr.responseText.length);

}, `Synthetic response with Content-Length header with value larger than response body length`);

promise_test(async t => {

  const xhr = new frame.contentWindow.XMLHttpRequest();

  xhr.open("GET", "test?type=double-content-length");

  xhr.send();

  const event = await new Promise(resolve => xhr.onload = resolve);

  assert_equals(xhr.getResponseHeader("content-length"), "10000, 10000");

  assert_true(event.lengthComputable);

  assert_equals(event.total, 10000);

  assert_equals(event.loaded, xhr.responseText.length);

}, `Synthetic response with two Content-Length headers value larger than response body length`);

promise_test(async t => {

  const xhr = new frame.contentWindow.XMLHttpRequest();

  xhr.open("GET", "test?type=bogus-content-length");

  xhr.send();

  const event = await new Promise(resolve => xhr.onload = resolve);

  assert_equals(xhr.getResponseHeader("content-length"), "test");

  assert_false(event.lengthComputable);

  assert_equals(event.total, 0);

  assert_equals(event.loaded, xhr.responseText.length);

}, `Synthetic response with bogus Content-Length header`);