Added a Fixture method to check if journaling is enabled on the server

Author: jyemin

src/test/com/mongodb/Fixture.java

@@ -17,6 +17,7 @@
 package com.mongodb;
 
 import java.net.UnknownHostException;
+import java.util.List;
 
 /**
  * Helper class for the acceptance tests.
@@ -76,6 +77,20 @@ public static boolean isReplicaSet() {
         return runIsMaster().get("setName") != null;
     }
 
+    public static boolean isServerStartedWithJournalingDisabled() {
+        return serverStartedWithBooleanOption("--nojournal", "nojournal");
+    }
+
+    private static boolean serverStartedWithBooleanOption(final String commandLineOption, final String configOption) {
+        CommandResult res = getMongoClient().getDB("admin").command(new BasicDBObject("getCmdLineOpts", 1));
+        res.throwOnError();
+        if (res.containsField("parsed") && ((DBObject) res.get("parsed")).containsField(configOption)) {
+            return (Boolean) ((DBObject) res.get("parsed")).get(configOption);
+        } else {
+            return ((List) res.get("argv")).contains(commandLineOption);
+        }
+    }
+
     private static CommandResult runIsMaster() {
         // Check to see if this is a replica set... if not, get out of here.
         return getMongoClient().getDB("admin").command(new BasicDBObject("ismaster", 1));