1 files changed, 76 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/browser_bug1198465.js b/toolkit/content/tests/browser/browser_bug1198465.js
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+++ b/toolkit/content/tests/browser/browser_bug1198465.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var kPrefName = "accessibility.typeaheadfind.prefillwithselection";
+var kEmptyURI = "data:text/html,";
+
+// This pref is false by default in OSX; ensure the test still works there.
+Services.prefs.setBoolPref(kPrefName, true);
+
+registerCleanupFunction(function () {
+  Services.prefs.clearUserPref(kPrefName);
+});
+
+add_task(async function () {
+  let aTab = await BrowserTestUtils.openNewForegroundTab(gBrowser, kEmptyURI);
+  ok(!gFindBarInitialized, "findbar isn't initialized yet");
+
+  // Note: the use case here is when the user types directly in the findbar
+  // _before_ it's prefilled with a text selection in the page.
+
+  // So `yield BrowserTestUtils.sendChar()` can't be used here:
+  //  - synthesizing a key in the browser won't actually send it to the
+  //    findbar; the findbar isn't part of the browser content.
+  //  - we need to _not_ wait for _startFindDeferred to be resolved; yielding
+  //    a synthesized keypress on the browser implicitely happens after the
+  //    browser has dispatched its return message with the prefill value for
+  //    the findbar, which essentially nulls these tests.
+
+  // The parent-side of the sidebar initialization is also async, so we do
+  // need to wait for that. We verify a bit further down that _startFindDeferred
+  // hasn't been resolved yet.
+  await gFindBarPromise;
+
+  let findBar = gFindBar;
+  is(findBar._findField.value, "", "findbar is empty");
+
+  // Test 1
+  //  Any input in the findbar should erase a previous search.
+
+  findBar._findField.value = "xy";
+  findBar.startFind();
+  is(findBar._findField.value, "xy", "findbar should have xy initial query");
+  is(findBar._findField, document.activeElement, "findbar is now focused");
+
+  EventUtils.sendChar("z", window);
+  is(findBar._findField.value, "z", "z erases xy");
+
+  findBar._findField.value = "";
+  ok(!findBar._findField.value, "erase findbar after first test");
+
+  // Test 2
+  //  Prefilling the findbar should be ignored if a search has been run.
+
+  findBar.startFind();
+  ok(findBar._startFindDeferred, "prefilled value hasn't been fetched yet");
+  is(findBar._findField, document.activeElement, "findbar is still focused");
+
+  EventUtils.sendChar("a", window);
+  EventUtils.sendChar("b", window);
+  is(findBar._findField.value, "ab", "initial ab typed in the findbar");
+
+  // This resolves _startFindDeferred if it's still pending; let's just skip
+  // over waiting for the browser's return message that should do this as it
+  // doesn't really matter.
+  findBar.onCurrentSelection("foo", true);
+  ok(!findBar._startFindDeferred, "prefilled value fetched");
+  is(findBar._findField.value, "ab", "ab kept instead of prefill value");
+
+  EventUtils.sendChar("c", window);
+  is(findBar._findField.value, "abc", "c is appended after ab");
+
+  // Clear the findField value to make the test  run successfully
+  // for multiple runs in the same browser session.
+  findBar._findField.value = "";
+  BrowserTestUtils.removeTab(aTab);
+});