1 files changed, 60 insertions, 0 deletions
diff --git a/devtools/shared/tests/unit/head_devtools.js b/devtools/shared/tests/unit/head_devtools.js
new file mode 100644
index 000000000..f0f47c93a
--- /dev/null
+++ b/devtools/shared/tests/unit/head_devtools.js
@@ -0,0 +1,60 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+var Cc = Components.classes;
+var Ci = Components.interfaces;
+var Cu = Components.utils;
+var Cr = Components.results;
+
+const {require, DevToolsLoader, devtools} = Cu.import("resource://devtools/shared/Loader.jsm", {});
+const DevToolsUtils = require("devtools/shared/DevToolsUtils");
+const flags = require("devtools/shared/flags");
+
+flags.testing = true;
+do_register_cleanup(() => {
+  flags.testing = false;
+});
+
+// Register a console listener, so console messages don't just disappear
+// into the ether.
+
+// If for whatever reason the test needs to post console errors that aren't
+// failures, set this to true.
+var ALLOW_CONSOLE_ERRORS = false;
+
+var errorCount = 0;
+var listener = {
+  observe: function (aMessage) {
+    errorCount++;
+    try {
+      // If we've been given an nsIScriptError, then we can print out
+      // something nicely formatted, for tools like Emacs to pick up.
+      var scriptError = aMessage.QueryInterface(Ci.nsIScriptError);
+      dump(aMessage.sourceName + ":" + aMessage.lineNumber + ": " +
+           scriptErrorFlagsToKind(aMessage.flags) + ": " +
+           aMessage.errorMessage + "\n");
+      var string = aMessage.errorMessage;
+    } catch (x) {
+      // Be a little paranoid with message, as the whole goal here is to lose
+      // no information.
+      try {
+        var string = "" + aMessage.message;
+      } catch (x) {
+        var string = "<error converting error message to string>";
+      }
+    }
+
+    // Make sure we exit all nested event loops so that the test can finish.
+    while (DebuggerServer.xpcInspector.eventLoopNestLevel > 0) {
+      DebuggerServer.xpcInspector.exitNestedEventLoop();
+    }
+
+    if (!ALLOW_CONSOLE_ERRORS) {
+      do_throw("head_devtools.js got console message: " + string + "\n");
+    }
+  }
+};
+
+var consoleService = Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService);
+consoleService.registerListener(listener);