diff -r 000000000000 -r 6474c204b198 mobile/android/tests/background/junit3/src/healthreport/MockProfileInformationCache.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/tests/background/junit3/src/healthreport/MockProfileInformationCache.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+package org.mozilla.gecko.background.healthreport;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.mozilla.gecko.background.healthreport.ProfileInformationCache;
+
+public class MockProfileInformationCache extends ProfileInformationCache {
+  public MockProfileInformationCache(String profilePath) {
+    super(profilePath);
+  }
+
+  public boolean isInitialized() {
+    return this.initialized;
+  }
+  public boolean needsWrite() {
+    return this.needsWrite;
+  }
+  public File getFile() {
+    return this.file;
+  }
+
+  public void writeJSON(JSONObject toWrite) throws IOException {
+    writeToFile(toWrite);
+  }
+
+  public JSONObject readJSON() throws FileNotFoundException, JSONException {
+    return readFromFile();
+  }
+
+  public void setInitialized(final boolean initialized) {
+    this.initialized = initialized;
+  }
+}