diff --git a/README b/README
index fba77970..915adbde 100644
--- a/README
+++ b/README
@@ -57,10 +57,21 @@ EGLWLMockNavigation:
    Syntax:  [wayland_display_to_connect_to] <your installation path>/bin/EGLWLMockNavigation
    Example: WAYLAND_DISPLAY=wayland-1 $HOME/bin/EGLWLMockNavigation
 
-How to test
+How to test functional testing
 ====================================
 1. Build the testsuite by setting BUILD_ILM_API_TESTS option.
    Example: cmake -DBUILD_ILM_API_TESTS
 2. After starting up Weston run the testsuite.
    Syntax:  [wayland_display_to_connect_to] <your installation path>/bin/ivi-layermanagement-api-test
    Example: WAYLAND_DISPLAY=wayland-1 $HOME/bin/ivi-layermanagement-api-test
+
+How to test unit testing
+====================================
+1. Build the testsuite by setting BUILD_ILM_UNIT_TESTS option.
+   Example: cmake -DBUILD_ILM_UNIT_TESTS=ON
+2. After build successfully, just run the testsuite right away.
+   Syntax: <your installation path>/bin/unittest*
+   Example: $HOME/install/bin/unittest-ivi-controller
+3. (Optional) To display code coverage results, run shell script in unittest folder
+   Syntax: code_coverage.sh
+   Example: $HOME/covesa/wayland-ivi-extension/unittest/code_coverage.sh
diff --git a/unittest/code_coverage.sh b/unittest/code_coverage.sh
new file mode 100755
index 00000000..9cd59efe
--- /dev/null
+++ b/unittest/code_coverage.sh
@@ -0,0 +1,113 @@
+#!/bin/bash
+
+############################################################################
+#
+# Copyright (C) 2023 Advanced Driver Information Technology Joint Venture GmbH
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#               http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+############################################################################
+
+# Global variable declare =============================================================================================
+
+declare BUILD_DIR
+
+declare -r RED='\033[0;31m'          # Red
+declare -r GREEN='\033[0;32m'        # Green
+declare -r YELLOW='\033[0;33m'       # Yellow
+declare -r WHITE='\033[0;37m'        # White
+declare -r NC='\033[0m'              # No color
+
+print_error(){
+    printf "${RED}$1${NC}\n"
+}
+
+print_information(){
+    printf "${YELLOW}$1${NC}\n"
+}
+
+print_done(){
+    printf "${GREEN}$1${NC}\n"
+}
+
+run_command(){
+    if ! $1; then
+        print_error "Failed at: $1" && exit 1
+    fi
+}
+
+# Functions ============================================================================================================
+
+build_tests(){
+    print_information "Building tests....."
+
+    UNITTEST_DIR=$(dirname "$(readlink -f "$0")")
+
+    if [ -d "$UNITTEST_DIR/build_unittest/" ]; then
+        run_command "rm -rf $UNITTEST_DIR/build_unittest/"
+    fi
+
+    BUILD_DIR=$UNITTEST_DIR/build_unittest/
+
+    run_command "mkdir $BUILD_DIR"
+    run_command "cd $BUILD_DIR"
+    run_command "cmake -DBUILD_ILM_UNIT_TESTS=ON -DBUILD_CODE_COVERAGE=ON -DCMAKE_INSTALL_PREFIX=$WLD -DLIB_SUFFIX=//x86_64-linux-gnu ../../"
+    run_command "make"
+
+    print_done "Finish build tests!"
+}
+
+run_tests(){
+    print_information "Running test files....."
+
+    run_command "lcov -z -d $BUILD_DIR/"
+
+    run_command "ctest --test-dir $BUILD_DIR/unittest/client/"
+    run_command "ctest --test-dir $BUILD_DIR/unittest/server/"
+
+    print_done "Finish run test files!"
+}
+
+generate_ccov(){
+    print_information "Generating ccov....."
+
+    run_command "lcov -c -d $BUILD_DIR/../ -o $BUILD_DIR/coverage.info --rc lcov_branch_coverage=1"
+    run_command "lcov --remove $BUILD_DIR/coverage.info ' */install/include/* */usr/include/* */include/weston/* */build_ivi_extension/* \
+                                                          */build_unittest/* */wayland-ivi-extension/unittest/* */bitmap.c */writepng.c \
+                                                          */src/*.h ' -o $BUILD_DIR/coverage.info --rc lcov_branch_coverage=1"
+    run_command "genhtml -o $BUILD_DIR/results/ $BUILD_DIR/coverage.info --rc lcov_branch_coverage=1"
+
+    print_done "Finish generating ccov!"
+}
+
+show_coverage_data(){
+    print_information "Show coverage data....."
+
+    run_command "xdg-open $BUILD_DIR/results/index.html"
+
+    print_done "Finish open html file!"
+}
+
+# Main =================================================================================================================
+
+print_information "Starting script....."
+
+build_tests
+run_tests
+generate_ccov
+show_coverage_data
+
+print_done "Finish script!"
+
+# End main =============================================================================================================