1 files changed, 70 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/browser_bug982298.js b/toolkit/content/tests/browser/browser_bug982298.js
new file mode 100644
index 0000000000..047340c5ce
--- /dev/null
+++ b/toolkit/content/tests/browser/browser_bug982298.js
@@ -0,0 +1,70 @@
+const scrollHtml =
+  "<textarea id=\"textarea1\" row=2>Firefox\n\nFirefox\n\n\n\n\n\n\n\n\n\n" +
+  "</textarea><a href=\"about:blank\">blank</a>";
+
+add_task(function*() {
+  let url = "data:text/html;base64," + btoa(scrollHtml);
+  yield BrowserTestUtils.withNewTab({gBrowser, url}, function*(browser) {
+    let awaitFindResult = new Promise(resolve => {
+      let listener = {
+        onFindResult(aData) {
+          info("got find result");
+          browser.finder.removeResultListener(listener);
+
+          ok(aData.result == Ci.nsITypeAheadFind.FIND_FOUND, "should find string");
+          resolve();
+        },
+        onCurrentSelection() {},
+        onMatchesCountResult() {}
+      };
+      info("about to add results listener, open find bar, and send 'F' string");
+      browser.finder.addResultListener(listener);
+    });
+    gFindBar.onFindCommand();
+    EventUtils.sendString("F");
+    info("added result listener and sent string 'F'");
+    yield awaitFindResult;
+
+    let awaitScrollDone = BrowserTestUtils.waitForMessage(browser.messageManager, "ScrollDone");
+    // scroll textarea to bottom
+    const scrollTest =
+      "var textarea = content.document.getElementById(\"textarea1\");" +
+      "textarea.scrollTop = textarea.scrollHeight;" +
+      "sendAsyncMessage(\"ScrollDone\", { });"
+    browser.messageManager.loadFrameScript("data:text/javascript;base64," +
+                                           btoa(scrollTest), false);
+    yield awaitScrollDone;
+    info("got ScrollDone event");
+    yield BrowserTestUtils.loadURI(browser, "about:blank");
+    yield BrowserTestUtils.browserLoaded(browser);
+
+    ok(browser.currentURI.spec == "about:blank", "got load event for about:blank");
+
+    let awaitFindResult2 = new Promise(resolve => {
+      let listener = {
+        onFindResult(aData) {
+          info("got find result #2");
+          browser.finder.removeResultListener(listener);
+          resolve();
+        },
+        onCurrentSelection() {},
+        onMatchesCountResult() {}
+      };
+
+      browser.finder.addResultListener(listener);
+      info("added result listener");
+    });
+    // find again needs delay for crash test
+    setTimeout(function() {
+      // ignore exception if occured
+      try {
+        info("about to send find again command");
+        gFindBar.onFindAgainCommand(false);
+        info("sent find again command");
+      } catch (e) {
+        info("got exception from onFindAgainCommand: " + e);
+      }
+    }, 0);
+    yield awaitFindResult2;
+  });
+});