From 7497cb26a5562e0829b80fe7156af4f246dfc805 Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes>
Date: Fri, 7 Feb 2025 20:59:26 +0100
Subject: [PATCH] [CI] Measure code coverage after unit test

---
 extras/test/unit/.gitignore     |  1 +
 extras/test/unit/CMakeLists.txt |  6 ++++--
 extras/test/unit/coverage.sh    | 13 +++++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100755 extras/test/unit/coverage.sh

diff --git a/extras/test/unit/.gitignore b/extras/test/unit/.gitignore
index 567609b1..b9f0c3b0 100644
--- a/extras/test/unit/.gitignore
+++ b/extras/test/unit/.gitignore
@@ -1 +1,2 @@
 build/
+lcov*
diff --git a/extras/test/unit/CMakeLists.txt b/extras/test/unit/CMakeLists.txt
index 300b8869..a3943e84 100644
--- a/extras/test/unit/CMakeLists.txt
+++ b/extras/test/unit/CMakeLists.txt
@@ -18,11 +18,13 @@ add_executable(${PROJECT_NAME} ${TEST_SOURCES})
 target_include_directories(${PROJECT_NAME} PUBLIC include)
 
 # link RadioLib
-target_link_libraries(${PROJECT_NAME} RadioLib fmt)
+target_link_libraries(${PROJECT_NAME} RadioLib fmt gcov)
 
 # set target properties and options
 set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 20)
-target_compile_options(${PROJECT_NAME} PRIVATE -Wall -Wextra)
+set(BUILD_FLAGS -Wall -Wextra -fprofile-arcs -ftest-coverage -O0)
+target_compile_options(${PROJECT_NAME} PRIVATE ${BUILD_FLAGS})
+target_compile_options(RadioLib PRIVATE ${BUILD_FLAGS})
 
 # set RadioLib debug
 #target_compile_definitions(RadioLib PUBLIC RADIOLIB_DEBUG_BASIC RADIOLIB_DEBUG_SPI RADIOLIB_DEBUG_PROTOCOL)
diff --git a/extras/test/unit/coverage.sh b/extras/test/unit/coverage.sh
new file mode 100755
index 00000000..f3606c67
--- /dev/null
+++ b/extras/test/unit/coverage.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -e
+filename="lcov"
+rm -rf $filename.*
+lcov --capture --directory build --output-file "${filename}.info"
+
+# filter out boost and C++ standard library
+lcov --remove "${filename}.info" "/usr/*/boost/*" "/usr/include/c++/*" --output-file "${filename}.info"
+
+# generate HTML
+genhtml "${filename}.info" --output-directory "${filename}.report"
+zip -r "${filename}.report.zip" "${filename}.report"