From 900439cdd87694a317ea77085985c47f79587a7f Mon Sep 17 00:00:00 2001
From: Marcin Niestroj <m.niestroj@emb.dev>
Date: Thu, 26 Sep 2024 21:18:47 +0200
Subject: [PATCH] ci: unit_tests: collect coverage

Install both gcovr and ninja from pypi, so a single tool (pip) is used.

Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
---
 .github/workflows/lint_build_unit_test.yml | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/lint_build_unit_test.yml b/.github/workflows/lint_build_unit_test.yml
index 2b3af32b4..733aa7f95 100644
--- a/.github/workflows/lint_build_unit_test.yml
+++ b/.github/workflows/lint_build_unit_test.yml
@@ -46,9 +46,9 @@ jobs:
         with:
           submodules: 'recursive'
 
-      - name: Install ninja
+      - name: Install gcovr and ninja
         run: |
-          sudo apt install -y ninja-build
+          pip install gcovr ninja
 
       - name: Run unit tests
         run: |
@@ -59,6 +59,22 @@ jobs:
                 --output-on-failure                     \
                 --timeout 2
 
+      - name: Coverage
+        run: |
+          gcovr                                                         \
+            --gcov-ignore-parse-errors=negative_hits.warn_once_per_file \
+            --merge-mode-functions=separate                             \
+            --json coverage.json                                        \
+            build
+
+      - name: Upload test coverage artifacts
+        uses: actions/upload-artifact@v4
+        if: ${{ always() }}
+        with:
+          name: unit-test-coverage
+          path: |
+            coverage.json
+
   linux_build:
     runs-on: ubuntu-latest
     steps: