diff -r 000000000000 -r 6474c204b198 browser/devtools/webconsole/test/browser_webconsole_history.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/webconsole/test/browser_webconsole_history.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,66 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Tests the console history feature accessed via the up and down arrow keys.
+
+const TEST_URI = "http://example.com/browser/browser/devtools/webconsole/test/test-console.html";
+
+// Constants used for defining the direction of JSTerm input history navigation.
+const HISTORY_BACK = -1;
+const HISTORY_FORWARD = 1;
+
+function test() {
+  addTab(TEST_URI);
+  browser.addEventListener("load", function onLoad() {
+    browser.removeEventListener("load", onLoad, true);
+    openConsole(null, testHistory);
+  }, true);
+}
+
+function testHistory(hud) {
+  let jsterm = hud.jsterm;
+  let input = jsterm.inputNode;
+
+  let executeList = ["document", "window", "window.location"];
+
+  for each (var item in executeList) {
+    input.value = item;
+    jsterm.execute();
+  }
+
+  for (var i = executeList.length - 1; i != -1; i--) {
+    jsterm.historyPeruse(HISTORY_BACK);
+    is (input.value, executeList[i], "check history previous idx:" + i);
+  }
+
+  jsterm.historyPeruse(HISTORY_BACK);
+  is (input.value, executeList[0], "test that item is still index 0");
+
+  jsterm.historyPeruse(HISTORY_BACK);
+  is (input.value, executeList[0], "test that item is still still index 0");
+
+  for (var i = 1; i < executeList.length; i++) {
+    jsterm.historyPeruse(HISTORY_FORWARD);
+    is (input.value, executeList[i], "check history next idx:" + i);
+  }
+
+  jsterm.historyPeruse(HISTORY_FORWARD);
+  is (input.value, "", "check input is empty again");
+
+  // Simulate pressing Arrow_Down a few times and then if Arrow_Up shows
+  // the previous item from history again.
+  jsterm.historyPeruse(HISTORY_FORWARD);
+  jsterm.historyPeruse(HISTORY_FORWARD);
+  jsterm.historyPeruse(HISTORY_FORWARD);
+
+  is (input.value, "", "check input is still empty");
+
+  let idxLast = executeList.length - 1;
+  jsterm.historyPeruse(HISTORY_BACK);
+  is (input.value, executeList[idxLast], "check history next idx:" + idxLast);
+
+  executeSoon(finishTest);
+}
+