feat: add code coverage (#430)

Author: oameye

.github/workflows/Tests.yml

@@ -48,11 +48,17 @@ jobs:
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
-      # - uses: julia-actions/julia-processcoverage@v1
-      # - uses: codecov/codecov-action@v5
-      #   with:
-      #     token: ${{ secrets.CODECOV_TOKEN }}
-      #     file: lcov.info
-      #     name: codecov-umbrella
-      #     fail_ci_if_error: false
-      #   if: ${{ matrix.version == 'lts' }}
+        env:
+          GROUP: ${{ matrix.group }}
+          JULIA_NUM_THREADS: auto
+      - uses: julia-actions/julia-processcoverage@v1
+        with:
+          directories: src,ext
+      - uses: codecov/codecov-action@v5
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          files: lcov.info
+          name: codecov-umbrella
+          fail_ci_if_error: false
+        if: ${{ matrix.version == 'lts' }}

README.md

@@ -7,6 +7,7 @@
 [![Code Style: Blue](https://img.shields.io/badge/code%20style-blue-4495d1.svg)](https://github.com/invenia/BlueStyle)
 [![Aqua QA](https://raw.githubusercontent.com/JuliaTesting/Aqua.jl/master/badge.svg)](https://github.com/JuliaTesting/Aqua.jl)
 [![JET](https://img.shields.io/badge/%E2%9C%88%EF%B8%8F%20tested%20with%20-%20JET.jl%20-%20red)](https://github.com/aviatesk/JET.jl)
+[![codecov](https://codecov.io/gh/QuantumEngineeredSystems/HarmonicBalance.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/QuantumEngineeredSystems/HarmonicBalance.jl)
 
 
 **HarmonicBalance.jl** is a Julia package for solving periodic, nonlinear differential equations using the method of harmonic balance.