1 files changed, 0 insertions, 93 deletions
diff --git a/browser/base/content/test/tabs/browser_tabSpinnerProbe.js b/browser/base/content/test/tabs/browser_tabSpinnerProbe.js
deleted file mode 100644
index c3569c2b13..0000000000
--- a/browser/base/content/test/tabs/browser_tabSpinnerProbe.js
+++ /dev/null
@@ -1,93 +0,0 @@
-"use strict";
-
-/**
- * Tests the FX_TAB_SWITCH_SPINNER_VISIBLE_MS and
- * FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS telemetry probes
- */
-let gMinHangTime = 500; // ms
-let gMaxHangTime = 5 * 1000; // ms
-
-/**
- * Make a data URI for a generic webpage with a script that hangs for a given
- * amount of time.
- * @param  {?Number} aHangMs Number of milliseconds that the hang should last.
- *                   Defaults to 0.
- * @return {String}  The data URI generated.
- */
-function makeDataURI(aHangMs = 0) {
-  return `data:text/html,
-    <html>
-      <head>
-        <meta charset="utf-8"/>
-        <title>Tab Spinner Test</title>
-        <script>
-          function hang() {
-            let hangDuration = ${aHangMs};
-            if (hangDuration > 0) {
-              let startTime = window.performance.now();
-              while(window.performance.now() - startTime < hangDuration) {}
-            }
-          }
-        </script>
-      </head>
-      <body>
-        <h1 id='header'>Tab Spinner Test</h1>
-      </body>
-    </html>`;
-}
-
-/**
- * Returns the sum of all values in an array.
- * @param  {Array}  aArray An array of integers
- * @return {Number} The sum of the integers in the array
- */
-function sum(aArray) {
-  return aArray.reduce(function(previousValue, currentValue) {
-    return previousValue + currentValue;
-  });
-}
-
-/**
- * A generator intended to be run as a Task. It tests one of the tab spinner
- * telemetry probes.
- * @param {String} aProbe The probe to test. Should be one of:
- *                  - FX_TAB_SWITCH_SPINNER_VISIBLE_MS
- *                  - FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS
- */
-function* testProbe(aProbe) {
-  info(`Testing probe: ${aProbe}`);
-  let histogram = Services.telemetry.getHistogramById(aProbe);
-  let buckets = histogram.snapshot().ranges.filter(function(value) {
-    return (value > gMinHangTime && value < gMaxHangTime);
-  });
-  let delayTime = buckets[0]; // Pick a bucket arbitrarily
-
-  // The tab spinner does not show up instantly. We need to hang for a little
-  // bit of extra time to account for the tab spinner delay.
-  delayTime += gBrowser.selectedTab.linkedBrowser.getTabBrowser()._getSwitcher().TAB_SWITCH_TIMEOUT;
-  let dataURI1 = makeDataURI(delayTime);
-  let dataURI2 = makeDataURI();
-
-  let tab1 = yield BrowserTestUtils.openNewForegroundTab(gBrowser, dataURI1);
-  histogram.clear();
-  // Queue a hang in the content process when the
-  // event loop breathes next.
-  ContentTask.spawn(tab1.linkedBrowser, null, function*() {
-    content.wrappedJSObject.hang();
-  });
-  let tab2 = yield BrowserTestUtils.openNewForegroundTab(gBrowser, dataURI2);
-  let snapshot = histogram.snapshot();
-  yield BrowserTestUtils.removeTab(tab2);
-  yield BrowserTestUtils.removeTab(tab1);
-  ok(sum(snapshot.counts) > 0,
-   `Spinner probe should now have a value in some bucket`);
-}
-
-add_task(function* setup() {
-  yield SpecialPowers.pushPrefEnv({
-    set: [["dom.ipc.processCount", 1]]
-  });
-});
-
-add_task(testProbe.bind(null, "FX_TAB_SWITCH_SPINNER_VISIBLE_MS"));
-add_task(testProbe.bind(null, "FX_TAB_SWITCH_SPINNER_VISIBLE_LONG_MS"));