diff --git a/DiscImageChef.Partitions/Acorn.cs b/DiscImageChef.Partitions/Acorn.cs
index d7d1f7638..64fe79c67 100644
--- a/DiscImageChef.Partitions/Acorn.cs
+++ b/DiscImageChef.Partitions/Acorn.cs
@@ -39,7 +39,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class Acorn : PartPlugin
+    public class Acorn : PartPlugin
     {
         const ulong ADFS_SB_POS = 0xC00;
         const uint LINUX_MAGIC = 0xDEAFA1DE;
diff --git a/DiscImageChef.Partitions/AppleMap.cs b/DiscImageChef.Partitions/AppleMap.cs
index 122f65c76..2c387c24c 100644
--- a/DiscImageChef.Partitions/AppleMap.cs
+++ b/DiscImageChef.Partitions/AppleMap.cs
@@ -40,7 +40,7 @@ namespace DiscImageChef.PartPlugins
 {
     // Information about structures learnt from Inside Macintosh
     // Constants from image testing
-    class AppleMap : PartPlugin
+    public class AppleMap : PartPlugin
     {
         // "ER"
         const ushort APM_MAGIC = 0x4552;
diff --git a/DiscImageChef.Partitions/Atari.cs b/DiscImageChef.Partitions/Atari.cs
index fedcd72cb..cc169ce9b 100644
--- a/DiscImageChef.Partitions/Atari.cs
+++ b/DiscImageChef.Partitions/Atari.cs
@@ -37,7 +37,7 @@ using DiscImageChef.Console;
 
 namespace DiscImageChef.PartPlugins
 {
-    class AtariPartitions : PartPlugin
+    public class AtariPartitions : PartPlugin
     {
         const uint TypeGEMDOS = 0x0047454D;
         const uint TypeBigGEMDOS = 0x0042474D;
diff --git a/DiscImageChef.Partitions/BSD.cs b/DiscImageChef.Partitions/BSD.cs
index 343fee738..213b4ce90 100644
--- a/DiscImageChef.Partitions/BSD.cs
+++ b/DiscImageChef.Partitions/BSD.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class BSD : PartPlugin
+    public class BSD : PartPlugin
     {
         public const uint DISKMAGIC = 0x82564557;
 
diff --git a/DiscImageChef.Partitions/DEC.cs b/DiscImageChef.Partitions/DEC.cs
index 3b3ded9df..78bc77004 100644
--- a/DiscImageChef.Partitions/DEC.cs
+++ b/DiscImageChef.Partitions/DEC.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class DEC : PartPlugin
+    public class DEC : PartPlugin
     {
         const int PT_MAGIC = 0x032957;
         const int PT_VALID = 1;
diff --git a/DiscImageChef.Partitions/DragonFlyBSD.cs b/DiscImageChef.Partitions/DragonFlyBSD.cs
index e9d730678..592dacdf3 100644
--- a/DiscImageChef.Partitions/DragonFlyBSD.cs
+++ b/DiscImageChef.Partitions/DragonFlyBSD.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class DragonFlyBSD : PartPlugin
+    public class DragonFlyBSD : PartPlugin
     {
         const uint DISK_MAGIC64 = 0xC4464C59;
 
diff --git a/DiscImageChef.Partitions/GPT.cs b/DiscImageChef.Partitions/GPT.cs
index d2818552f..af3ab88ba 100644
--- a/DiscImageChef.Partitions/GPT.cs
+++ b/DiscImageChef.Partitions/GPT.cs
@@ -37,7 +37,7 @@ using DiscImageChef.Console;
 
 namespace DiscImageChef.PartPlugins
 {
-    class GuidPartitionTable : PartPlugin
+    public class GuidPartitionTable : PartPlugin
     {
         const ulong GptMagic = 0x5452415020494645;
         const uint GptRevision1 = 0x00010000;
diff --git a/DiscImageChef.Partitions/Human68k.cs b/DiscImageChef.Partitions/Human68k.cs
index b591ecc21..200f528dd 100644
--- a/DiscImageChef.Partitions/Human68k.cs
+++ b/DiscImageChef.Partitions/Human68k.cs
@@ -40,7 +40,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class Human68K : PartPlugin
+    public class Human68K : PartPlugin
     {
         const uint X68kMagic = 0x5836384B;
 
diff --git a/DiscImageChef.Partitions/MBR.cs b/DiscImageChef.Partitions/MBR.cs
index cb6e43569..67528bc9a 100644
--- a/DiscImageChef.Partitions/MBR.cs
+++ b/DiscImageChef.Partitions/MBR.cs
@@ -36,7 +36,7 @@ using System.Collections.Generic;
 // TODO: Support AAP, AST, SpeedStor and Ontrack extensions
 namespace DiscImageChef.PartPlugins
 {
-    class MBR : PartPlugin
+    public class MBR : PartPlugin
     {
         const ushort MBRSignature = 0xAA55;
 
diff --git a/DiscImageChef.Partitions/NeXT.cs b/DiscImageChef.Partitions/NeXT.cs
index 74297cced..0c18a7343 100644
--- a/DiscImageChef.Partitions/NeXT.cs
+++ b/DiscImageChef.Partitions/NeXT.cs
@@ -37,7 +37,7 @@ using System.Text;
 // Information learnt from XNU source and testing against real disks
 namespace DiscImageChef.PartPlugins
 {
-    class NeXTDisklabel : PartPlugin
+    public class NeXTDisklabel : PartPlugin
     {
         const uint NEXT_MAGIC1 = 0x4E655854;
         // "NeXT"
diff --git a/DiscImageChef.Partitions/PC98.cs b/DiscImageChef.Partitions/PC98.cs
index d3a71d973..6d6829432 100644
--- a/DiscImageChef.Partitions/PC98.cs
+++ b/DiscImageChef.Partitions/PC98.cs
@@ -39,7 +39,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class PC98 : PartPlugin
+    public class PC98 : PartPlugin
     {
         const ushort IntelMagic = 0xAA55;
 
diff --git a/DiscImageChef.Partitions/RioKarma.cs b/DiscImageChef.Partitions/RioKarma.cs
index 2fed45924..82c80224e 100644
--- a/DiscImageChef.Partitions/RioKarma.cs
+++ b/DiscImageChef.Partitions/RioKarma.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class RioKarma : PartPlugin
+    public class RioKarma : PartPlugin
     {
         const ushort KarmaMagic = 0xAB56;
         const byte EntryMagic = 0x4D;
diff --git a/DiscImageChef.Partitions/SGI.cs b/DiscImageChef.Partitions/SGI.cs
index e402d5547..17273b9e6 100644
--- a/DiscImageChef.Partitions/SGI.cs
+++ b/DiscImageChef.Partitions/SGI.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class SGI : PartPlugin
+    public class SGI : PartPlugin
     {
         const int SGI_MAGIC = 0x0BE5A941;
 
diff --git a/DiscImageChef.Partitions/Sun.cs b/DiscImageChef.Partitions/Sun.cs
index 4a6e84775..06bb54960 100644
--- a/DiscImageChef.Partitions/Sun.cs
+++ b/DiscImageChef.Partitions/Sun.cs
@@ -37,7 +37,7 @@ using DiscImageChef.Console;
 
 namespace DiscImageChef.PartPlugins
 {
-    class SunDisklabel : PartPlugin
+    public class SunDisklabel : PartPlugin
     {
         const ushort SUN_MAGIC = 0xDABE;
         const uint VTOC_MAGIC = 0x600DDEEE;
diff --git a/DiscImageChef.Partitions/UNIX.cs b/DiscImageChef.Partitions/UNIX.cs
index 97c9aaa71..9382ea1eb 100644
--- a/DiscImageChef.Partitions/UNIX.cs
+++ b/DiscImageChef.Partitions/UNIX.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class UNIX : PartPlugin
+    public class UNIX : PartPlugin
     {
         public const uint UNIXDiskLabel_MAGIC = 0xCA5E600D;
         public const uint UNIXVTOC_MAGIC = 0x600DDEEE;
diff --git a/DiscImageChef.Partitions/Xbox.cs b/DiscImageChef.Partitions/Xbox.cs
index c4ff783f3..61459fa9f 100644
--- a/DiscImageChef.Partitions/Xbox.cs
+++ b/DiscImageChef.Partitions/Xbox.cs
@@ -38,7 +38,7 @@ using DiscImageChef.ImagePlugins;
 
 namespace DiscImageChef.PartPlugins
 {
-    class Xbox : PartPlugin
+    public class Xbox : PartPlugin
     {
         const uint XboxCigam = 0x46415458;
         const uint XboxMagic = 0x58544146;
diff --git a/DiscImageChef.Tests/Filesystems/FAT12_MBR.cs b/DiscImageChef.Tests/Filesystems/FAT12_MBR.cs
new file mode 100644
index 000000000..a48b45fae
--- /dev/null
+++ b/DiscImageChef.Tests/Filesystems/FAT12_MBR.cs
@@ -0,0 +1,47 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : FAT12_MBR.cs
+// Version        : 1.0
+// Author(s)      : Natalia Portillo
+//
+// Component      : Component
+//
+// Revision       : $Revision$
+// Last change by : $Author$
+// Date           : $Date$
+//
+// --[ Description ] ----------------------------------------------------------
+//
+// Description
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright (C) 2011-2015 Claunia.com
+// ****************************************************************************/
+// //$Id$
+using System;
+namespace DiscImageChef.Tests.Filesystems
+{
+    public class FAT12_MBR
+    {
+        public FAT12_MBR()
+        {
+        }
+    }
+}