diff -r 000000000000 -r 6474c204b198 build/mobile/robocop/FennecTalosAssert.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/mobile/robocop/FennecTalosAssert.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,74 @@
+/* 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/. */
+
+package org.mozilla.gecko;
+
+
+public class FennecTalosAssert implements Assert {
+
+    public FennecTalosAssert() { }
+
+    /**
+     *  Write information to a logfile and logcat
+     */
+    public void dumpLog(String message) {
+        FennecNativeDriver.log(FennecNativeDriver.LogLevel.INFO, message);
+    }
+
+    /** Write information to a logfile and logcat */
+    public void dumpLog(String message, Throwable t) {
+        FennecNativeDriver.log(FennecNativeDriver.LogLevel.INFO, message, t);
+    }
+
+    /**
+     *  Set the filename used for dumpLog.
+     */
+    public void setLogFile(String filename) {
+        FennecNativeDriver.setLogFile(filename);
+    }
+
+    public void setTestName(String testName) { }
+
+    public void endTest() { }
+
+    public void ok(boolean condition, String name, String diag) {
+        if (!condition) {
+            dumpLog("__FAIL" + name + ": " + diag + "__FAIL");
+        }
+    }
+
+    public void is(Object actual, Object expected, String name) {
+        boolean pass = (actual == null ? expected == null : actual.equals(expected));
+        ok(pass, name, "got " + actual + ", expected " + expected);
+    }
+
+    public void isnot(Object actual, Object notExpected, String name) {
+        boolean fail = (actual == null ? notExpected == null : actual.equals(notExpected));
+        ok(!fail, name, "got " + actual + ", expected not " + notExpected);
+    }
+
+    public void ispixel(int actual, int r, int g, int b, String name) {
+        throw new UnsupportedOperationException();
+    }
+
+    public void isnotpixel(int actual, int r, int g, int b, String name) {
+        throw new UnsupportedOperationException();
+    }
+
+    public void todo(boolean condition, String name, String diag) {
+        throw new UnsupportedOperationException();
+    }
+
+    public void todo_is(Object actual, Object expected, String name) {
+        throw new UnsupportedOperationException();
+    }
+    
+    public void todo_isnot(Object actual, Object notExpected, String name) {
+        throw new UnsupportedOperationException();
+    }
+
+    public void info(String name, String message) {
+        dumpLog(name + ": " + message);
+    }
+}