From 4fb5feb21fbb59d26f2ca58d5958105054b42f13 Mon Sep 17 00:00:00 2001
From: Chris Mc <prince.chrismc@gmail.com>
Date: Sun, 5 Jul 2020 20:48:44 -0400
Subject: [PATCH 1/2] adding coverage testing

surprisingly:
Overall coverage rate:
  lines......: 80.6% (519 of 644 lines)
  functions..: 92.5% (235 of 254 functions)
---
 CMakeLists.txt            |  3 +++
 cmake/code-coverage.cmake | 15 +++++++++++++++
 tests/CMakeLists.txt      |  9 +++++++++
 3 files changed, 27 insertions(+)
 create mode 100644 cmake/code-coverage.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e7e45931..136056db3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,7 @@ if(CMAKE_TOOLCHAIN_FILE)
 endif()
 
 option(BUILD_TESTS "Configure CMake to build tests (or not)" ON)
+option(COVERAGE "Enable code coverage testing" OFF)
 option(EXTERNAL_PICOJSON "Use find_package() to locate the picojson header" OFF)
 option(DISABLE_JWT_CPP_BASE64
        "Do not include the base64 implementation from this library" OFF)
@@ -16,6 +17,8 @@ project(jwt-cpp)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
+
 find_package(OpenSSL 1.0.2 REQUIRED)
 
 if(EXTERNAL_PICOJSON)
diff --git a/cmake/code-coverage.cmake b/cmake/code-coverage.cmake
new file mode 100644
index 000000000..fd7da29ca
--- /dev/null
+++ b/cmake/code-coverage.cmake
@@ -0,0 +1,15 @@
+set(COVERAGE_CMAKE "${CMAKE_BINARY_DIR}/cmake/CodeCoverage.cmake")
+if(NOT EXISTS ${COVERAGE_CMAKE})
+  set(COVERAGE_URL
+      "https://raw.githubusercontent.com/bilke/cmake-modules/master/CodeCoverage.cmake"
+  )
+  file(DOWNLOAD ${COVERAGE_URL} ${COVERAGE_CMAKE})
+endif()
+
+include(${COVERAGE_CMAKE})
+
+function(setup_coverage TARGET)
+  target_compile_options(${TARGET} PRIVATE -g -O0 -fprofile-arcs
+                                           -ftest-coverage)
+  target_link_libraries(${TARGET} PRIVATE gcov)
+endfunction()
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index c0060b9d8..22e3b6f1f 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -35,3 +35,12 @@ target_link_libraries(jwt-cpp-test PRIVATE jwt-cpp::jwt-cpp GTest::GTest
                                            GTest::Main pthread)
 
 gtest_add_tests(TARGET jwt-cpp-test)
+
+if(${COVERAGE})
+  include("code-coverage")
+  setup_coverage(jwt-cpp-test)
+
+  set(COVERAGE_EXCLUDES "/usr/**" "/home/*/.conan/**" "*test*" "*build*" "*json*")
+  setup_target_for_coverage_lcov(NAME coverage EXECUTABLE
+                                 ${CMAKE_CURRENT_BINARY_DIR}/jwt-cpp-test)
+endif()

From ba7407f89c9b618e3cebaeb598f380911a1c7232 Mon Sep 17 00:00:00 2001
From: Chris Mc <prince.chrismc@gmail.com>
Date: Sun, 5 Jul 2020 21:39:56 -0400
Subject: [PATCH 2/2] Update coverage.yml

---
 .github/workflows/coverage.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index edcbb3bb5..0f3f30b3a 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -30,7 +30,7 @@ jobs:
         cmake .. -DBUILD_TESTS=ON -DCOVERAGE=ON -DCMAKE_BUILD_TYPE=Debug
         
     - name: make
-      run: make jwt-cpp-test coverage
+      run: cd build && make jwt-cpp-test coverage
       
     - name: Coveralls GitHub Action
       uses: coverallsapp/github-action@v1.1.1