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@@ -1,10 +1,42 @@
 Willkommen im Wiki.
 
-Basic toolkit setup is not (yet?) described here - it is identical to the _SOM-setup_.
 
 # Quick info  
    on the very beginning of developing the _control-algrorithm_
    
+## Prerequisites
+Basic toolkit setup is not (yet?) described here - it is identical to the _SOM-setup_.
+
+For testing purposes _googletest_  is chosen as one of the favourite testing frameworks - an extra installation needs to be done:
+
+## Install Google Test on Linux
+
+Just copy the commands between brackets [] below
+
+1) Clone the repository
+// Take/create any temporary folder
+[
+git clone https://github.com/google/googletest.git
+cd googletest
+mkdir build
+cd build
+]
+
+2) Configure and build
+
+//Install system-wide (requires sudo)
+[
+cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local -DBUILD_SHARED_LIBS=ON
+]
+
+3) Compile and install
+[
+make -j$(nproc)
+sudo make install
+]
+
+Now the repository can be applied.
+
 ## 1. Checkout from repo:
      On your local machine create a fresh folder and execute following commands
      mkdir fresh && cd fresh
@@ -27,11 +59,8 @@ Basic toolkit setup is not (yet?) described here - it is identical to the _SOM-s
 ## 5. Stop the application
     - hit any key on the keyboard
 
-    
-// -------------------------------- currently at work -----------------------------------
-
 ## 6. Test
     Just type
     tests/tests
-    - some dummy tests are executed, results are showing up
+    - some dummy tests are executed for a start, 'results' are showing up