diff --git a/core-buffer/src/RamBuffer.cpp b/core-buffer/src/RamBuffer.cpp
index b7a20da..8b3f298 100644
--- a/core-buffer/src/RamBuffer.cpp
+++ b/core-buffer/src/RamBuffer.cpp
@@ -5,7 +5,6 @@
 #include <sstream>
 #include <unistd.h>
 #include "RamBuffer.hpp"
-#include "buffer_config.hpp"
 #include "date.h"
 #include <chrono>
 #include <iostream>
@@ -30,8 +29,8 @@ RamBuffer::RamBuffer(const string& buffer_name,
 #ifdef DEBUG_OUTPUT
     using namespace date;
     cout << " [" << std::chrono::system_clock::now();
-    cout << "] [RamBuffer::RamBuffer] :";
-    cout << " || buffer_name_ " << buffer_name;
+    cout << "] [RamBuffer::RamBuffer] ";
+    cout << " buffer_name_ " << buffer_name;
     cout << " || n_modules_ " << n_modules_;
     cout << " || n_slots_ " << n_slots_;
     cout << " || meta_bytes_" << meta_bytes_;
@@ -91,7 +90,8 @@ void RamBuffer::write_frame(
     #ifdef DEBUG_OUTPUT
         using namespace date;
         cout << " [" << std::chrono::system_clock::now();
-        cout << "] [RamBuffer::write_frame] :";
+        cout << "] [RamBuffer::write_frame] ";
+        cout << " src_meta.id " << src_meta.id;
         cout << " || src_meta.frame_index " << src_meta.frame_index;
         cout << " || src_meta.n_recv_packets " << src_meta.n_recv_packets;
         cout << " || src_meta.daq_rec " << src_meta.daq_rec;
diff --git a/core-buffer/test/test_RamBuffer.cpp b/core-buffer/test/test_RamBuffer.cpp
index 6078958..b779b9f 100644
--- a/core-buffer/test/test_RamBuffer.cpp
+++ b/core-buffer/test/test_RamBuffer.cpp
@@ -4,16 +4,21 @@
 using namespace std;
 using namespace buffer_config;
 
+
 TEST(RamBuffer, simple_store)
 {
     const int n_modules = 3;
-    RamBuffer buffer("test_detector", n_modules, 10);
+    const size_t DATA_N_BYTES = MODULE_N_PIXELS * 2;
+
+    RamBuffer buffer("test_detector",
+            sizeof(ModuleFrame), DATA_N_BYTES, n_modules, 10);
 
     ModuleFrame frame_meta;
+    frame_meta.id = 12345678;
     frame_meta.pulse_id = 123523;
     frame_meta.daq_rec = 1234;
     frame_meta.frame_index = 12342300;
-    frame_meta.n_recv_packets = EIGER_N_PACKETS_PER_FRAME;
+    frame_meta.n_recv_packets = 128;
 
     auto frame_buffer = make_unique<uint16_t[]>(MODULE_N_PIXELS);
 
@@ -28,10 +33,22 @@ TEST(RamBuffer, simple_store)
         buffer.write_frame(frame_meta, (char *) (frame_buffer.get()));
     }
 
-    ImageMetadata image_meta;
-    buffer.assemble_image(frame_meta.pulse_id, image_meta);
-    ASSERT_EQ(image_meta.pulse_id, frame_meta.pulse_id);
-    ASSERT_EQ(image_meta.daq_rec, frame_meta.daq_rec);
-    ASSERT_EQ(image_meta.frame_index, frame_meta.frame_index);
-    ASSERT_EQ(image_meta.status, 0);
+    auto meta_buffer = (ModuleFrame*) buffer.get_slot_meta(frame_meta.id);
+    for (int i_module=0; i_module<n_modules; i_module++) {
+        ASSERT_EQ(meta_buffer[i_module].id, frame_meta.id);
+        ASSERT_EQ(meta_buffer[i_module].pulse_id, frame_meta.pulse_id);
+        ASSERT_EQ(meta_buffer[i_module].daq_rec, frame_meta.daq_rec);
+        ASSERT_EQ(meta_buffer[i_module].frame_index, frame_meta.frame_index);
+        ASSERT_EQ(meta_buffer[i_module].module_id, i_module);
+    }
+
+    auto data_buffer = (uint16_t*) buffer.get_slot_data(frame_meta.id);
+    for (int i_module=0; i_module<n_modules; i_module++) {
+        auto module_buffer = data_buffer + (MODULE_N_PIXELS * i_module);
+
+        for (size_t i = 0; i < MODULE_N_PIXELS; i++) {
+            ASSERT_EQ(module_buffer[i], i%100);
+        }
+    }
+
 }
diff --git a/core-buffer/test/test_bitshuffle.cpp b/core-buffer/test/test_bitshuffle.cpp
index a030256..8ca926e 100644
--- a/core-buffer/test/test_bitshuffle.cpp
+++ b/core-buffer/test/test_bitshuffle.cpp
@@ -6,6 +6,12 @@ extern "C" {
     #include "bitshuffle/bitshuffle.h"
 }
 
+#ifdef USE_EIGER
+#include "eiger.hpp"
+#else
+#include "jungfrau.hpp"
+#endif
+
 using namespace std;
 using namespace buffer_config;
 
diff --git a/jf-assembler/src/main.cpp b/jf-assembler/src/main.cpp
index 49e72b4..7ddd6db 100644
--- a/jf-assembler/src/main.cpp
+++ b/jf-assembler/src/main.cpp
@@ -4,13 +4,6 @@
 #include "date.h"
 #include <chrono>
 
-#ifdef USE_EIGER
-    #include "eiger.hpp"
-#else
-    #include "jungfrau.hpp"
-#endif
-
-
 #include <RamBuffer.hpp>
 #include <BufferUtils.hpp>
 #include <AssemblerStats.hpp>
@@ -18,7 +11,12 @@
 #include "EigerAssembler.hpp"
 #include "assembler_config.hpp"
 #include "ZmqPulseSyncReceiver.hpp"
-#include "buffer_config.hpp"
+
+#ifdef USE_EIGER
+#include "eiger.hpp"
+#else
+#include "jungfrau.hpp"
+#endif
 
 using namespace std;
 using namespace buffer_config;