diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b2b4d188..104c75df 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,8 +28,14 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
       - name: Configure code
+        if: matrix.os == 'ubuntu-latest'
+        run: cmake -Bbuild -DENABLE_COVERAGE=1
+      - name: Configure code
+        if: matrix.os == 'macos-latest'
         run: cmake -Bbuild
       - name: Build code
         run: cmake --build build --parallel
       - name: Test code
         run: ctest --test-dir build -V
+      - name: collect code coverage
+        run: bash <(curl -s https://codecov.io/bash) || echo "codecov failure"
diff --git a/cmake/options.cmake b/cmake/options.cmake
index ebbf749b..005f51e1 100644
--- a/cmake/options.cmake
+++ b/cmake/options.cmake
@@ -1,5 +1,6 @@
 option(BUILD_SHARED_LIBS "Build the shared library" ON)
 option(BUILD_EXAMPLES "Build the examples" ON)
 option(ENABLE_UNIT_TESTS "Enable unit testing" ON)
+option(ENABLE_COVERAGE "Enable unit test coverage" OFF)
 set(TEST_COMM_SIZE "2" CACHE STRING "MPI Communicator Size for tests")
 option(ENABLE_JENKINS_OUTPUT "Enable xml output for unit tests" OFF)
diff --git a/cmake/testing.cmake b/cmake/testing.cmake
index a1d4e61e..932648a0 100644
--- a/cmake/testing.cmake
+++ b/cmake/testing.cmake
@@ -10,8 +10,15 @@ if (ENABLE_UNIT_TESTS)
   FetchContent_MakeAvailable(googletest)
   add_library(googletest INTERFACE IMPORTED)
   target_link_libraries(googletest INTERFACE gtest_main)
+
+  if(ENABLE_COVERAGE)
+    target_compile_options(googletest INTERFACE -O0 -g -fprofile-arcs -ftest-coverage)
+    target_link_options(googletest INTERFACE -fprofile-arcs -ftest-coverage)
+  endif()
 endif()
 
+
+
 #function(add_unit target sources)
 #  set(mpimain_SRC ${CMAKE_SOURCE_DIR}/raptor/tests/mpi_main.cpp)
 #  add_executable(${target} ${sources} ${mpimain_SRC})