dom/xslt/tests/browser/browser_bug1309630.js

   1 "use strict";
   2
   3 const BASE = "https://example.com/browser/dom/xslt/tests/browser";
   4 const SERVER_SCRIPT = `${BASE}/bug1309630.sjs`;
   5
   6 function resetCounter() {
   7   return fetch(`${SERVER_SCRIPT}?reset_counter`);
   8 }
   9 function recordCounter() {
  10   return fetch(`${SERVER_SCRIPT}?record_counter`);
  11 }
  12 // Returns a promise that resolves to true if the counter in
  13 // bug1309630.sjs changed by more than 'value' since last calling
  14 // recordCounter(), or false if it doesn't and we time out.
  15 function waitForCounterChangeAbove(value) {
  16   return TestUtils.waitForCondition(() =>
  17     fetch(`${SERVER_SCRIPT}?get_counter_change`).then(response =>
  18       response.ok
  19         ? response.text().then(str => Number(str) > value)
  20         : Promise.reject()
  21     )
  22   ).then(
  23     () => true,
  24     () => false
  25   );
  26 }
  27
  28 add_task(async function test_eternal_xslt() {
  29   await resetCounter();
  30   await BrowserTestUtils.withNewTab(
  31     { gBrowser, url: SERVER_SCRIPT, waitForLoad: false },
  32     async function (browser) {
  33       info("Waiting for XSLT to keep loading");
  34
  35       ok(
  36         await waitForCounterChangeAbove(1),
  37         "We should receive at least a request from the document function call."
  38       );
  39
  40       info("Navigating to about:blank");
  41       BrowserTestUtils.startLoadingURIString(browser, "about:blank");
  42       await BrowserTestUtils.browserLoaded(browser);
  43
  44       info("Check to see if XSLT stops loading");
  45       await recordCounter();
  46       ok(
  47         !(await waitForCounterChangeAbove(0)),
  48         "We shouldn't receive more requests to the XSLT file within the timeout period."
  49       );
  50     }
  51   );
  52
  53   await resetCounter();
  54   await BrowserTestUtils.withNewTab(
  55     { gBrowser, url: `${BASE}/file_bug1309630.html` },
  56     async function (browser) {
  57       ok(
  58         await waitForCounterChangeAbove(1),
  59         "We should receive at least a request from the document function call."
  60       );
  61
  62       info("Navigating to about:blank");
  63       BrowserTestUtils.startLoadingURIString(browser, "about:blank");
  64       await BrowserTestUtils.browserLoaded(browser);
  65
  66       info("Check to see if XSLT stops loading");
  67       await recordCounter();
  68       ok(
  69         !(await waitForCounterChangeAbove(0)),
  70         "We shouldn't receive more requests to the XSLT file within the timeout period."
  71       );
  72     }
  73   );
  74 });