diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..76472bf
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external/Unity"]
+	path = external/Unity
+	url = https://github.com/ThrowTheSwitch/Unity.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d02a58..9ad826f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,8 @@ project(ZBBSServer
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
+set(TARGET_GROUP production CACHE STRING "Group to build")
+
 # Uncomment if you need to use PostgresQL
 option(USE_POSTGRESQL "Use PostgreSQL instead of SQLite" OFF)
 
@@ -38,6 +40,13 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 add_subdirectory(src) 
 
+if(TARGET_GROUP STREQUAL test)
+    include(CTest)
+
+    add_subdirectory(external)
+    add_subdirectory(test)
+endif()
+
 install(
   TARGETS zbbs-server
 )
\ No newline at end of file
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
new file mode 100644
index 0000000..0917251
--- /dev/null
+++ b/external/CMakeLists.txt
@@ -0,0 +1,7 @@
+add_library(Unity STATIC
+    Unity/src/unity.c
+)
+
+target_include_directories(Unity PUBLIC
+    Unity/src
+)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..74826c6
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1 @@
+add_subdirectory(file_p)
\ No newline at end of file
diff --git a/test/file_p/CMakeLists.txt b/test/file_p/CMakeLists.txt
new file mode 100644
index 0000000..0bd5e20
--- /dev/null
+++ b/test/file_p/CMakeLists.txt
@@ -0,0 +1,10 @@
+add_executable(file_p_app
+    file_p.c
+)
+
+target_link_libraries(file_p_app
+    file_p
+    Unity
+)
+
+add_test(file_p_test file_p_app)
diff --git a/test/file_p/file_p.c b/test/file_p/file_p.c
new file mode 100644
index 0000000..ba98c9f
--- /dev/null
+++ b/test/file_p/file_p.c
@@ -0,0 +1 @@
+#include <unity.h>
\ No newline at end of file