1 files changed, 62 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser_webconsole_history.js b/devtools/client/webconsole/test/browser_webconsole_history.js
new file mode 100644
index 000000000..5ae709a4b
--- /dev/null
+++ b/devtools/client/webconsole/test/browser_webconsole_history.js
@@ -0,0 +1,62 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests the console history feature accessed via the up and down arrow keys.
+
+"use strict";
+
+const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
+                 "test/test-console.html";
+
+// Constants used for defining the direction of JSTerm input history navigation.
+const HISTORY_BACK = -1;
+const HISTORY_FORWARD = 1;
+
+add_task(function* () {
+  yield loadTab(TEST_URI);
+  let hud = yield openConsole();
+  hud.jsterm.clearOutput();
+
+  let jsterm = hud.jsterm;
+  let input = jsterm.inputNode;
+
+  let executeList = ["document", "window", "window.location"];
+
+  for (let item of executeList) {
+    input.value = item;
+    yield jsterm.execute();
+  }
+
+  for (let x = executeList.length - 1; x != -1; x--) {
+    jsterm.historyPeruse(HISTORY_BACK);
+    is(input.value, executeList[x], "check history previous idx:" + x);
+  }
+
+  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 (let 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);
+});