diff --git a/test/.docker/Dockerfile b/test/.docker/Dockerfile
index ab9842654c889229e6c1e1007a331c9b3de40c7e..64e4d45fbfb094f88c5da4530229b0cc6bbd56ff 100644
--- a/test/.docker/Dockerfile
+++ b/test/.docker/Dockerfile
@@ -2,5 +2,11 @@ FROM debian:latest
 RUN apt-get update && \
     apt-get install -y cmake
 RUN apt-get install -y libcmocka-dev
+#RUN apt-get install -y lcov
+#RUN apt-get install -y doxygen
+#RUN apt-get install -y python3-pip
 
-COPY ./ caosdb-clib/
+
+
+
+#COPY ./ caosdb-clib/
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index fe310790973536b2c07a3e201771abd5451aac35..a6fd8b2ddda2b2a0625567ff2727866c5ed6de1a 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -3,16 +3,18 @@ set(test_cases
     test_connection
     )
 
+# look for pre-installed cmocka headers
 find_library(cmocka cmocka)
 if (cmocka)
     message(STATUS "Found pre-installed cmocka: ${cmocka-static}")
     set(cmocka-link "cmocka")
 elseif (${CMAKE_VERSION} VERSION_LESS "3.14.0")
     message(FATAL_ERROR
-"Failed to run tests. A pre-installed cmocka could not be found and
-your cmake version is prior to 3.14. Please consider to upgrade you
-cmake (>=3.14) or install cmocka.")
+"Failed to run tests. Pre-installed cmocka headers could not be found
+and your cmake version is prior to 3.14. Please consider to upgrade your
+cmake (>=3.14) or install cmocka headers.")
 else ()
+    # cmake >= 3.14
     include(FetchCMocka)
     set(cmocka-link "cmocka-static")
 endif ()