tests(coverage): add script to run test with coverage report

.github/workflows/build.yml

@@ -12,33 +12,30 @@ jobs:
   build:
     runs-on: macos-14
 
-    strategy:
-      matrix:
-        xcode:
-          - '16.0'
+    env:
+      DEVELOPER_DIR: /Applications/Xcode_16.0.app/Contents/Developer
 
     name: Build
 
     steps:
       - name: checkout
         uses: actions/checkout@v4
+
       - uses: actions/cache@v4
         with:
           path: .build
-          key: ${{ runner.os }}-xcode-${{ matrix.xcode }}-${{ hashFiles('**/Package.resolved') }}
+          key: ${{ runner.os }}-xcode-${{ hashFiles('**/Package.resolved') }}
           restore-keys: |
-            ${{ runner.os }}-xcode-${{ matrix.xcode }}
+            ${{ runner.os }}-xcode-
+
       - name: build
         run: |
           ls -n /Applications/ | grep Xcode*
           make build
-        env:
-          DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
+
       - name: test
         run: |
-          swift test
-        env:
-          DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer
+          ./scripts/code-coverage.sh
 
   create_release:
     needs:
@@ -116,6 +113,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+
       - name: Update homebrew formula
         run: |
           git config user.name github-actions[bot]

scripts/code-coverage.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+set -e
+
+cwd=`pwd`
+script_folder=`cd $(dirname $0) && pwd`
+build_folder=$script_folder/../.build
+output_folder=$script_folder/../.output
+
+mkdir -p $output_folder
+
+swift test --enable-code-coverage
+
+# if in the CI environment, then use llvm-cov report instead
+if [ -n "$CI" ]; then
+  xcrun llvm-cov report \
+    --ignore-filename-regex='(.build|Tests)[/\\].*' \
+    -instr-profile "$(swift test --show-codecov-path | xargs dirname)/default.profdata" \
+    .build/debug/sendkeysPackageTests.xctest/Contents/*/sendkeysPackageTests
+  exit 0
+fi
+
+xcrun llvm-cov export \
+  --format=lcov \
+  --ignore-filename-regex='(.build|Tests)[/\\].*' \
+  -instr-profile "$(swift test --show-codecov-path | xargs dirname)/default.profdata" \
+  .build/debug/sendkeysPackageTests.xctest/Contents/*/sendkeysPackageTests > "$output_folder/coverage.lcov"
+
+genhtml -o "$output_folder/coverage" "$output_folder/coverage.lcov"
+
+open "file://$output_folder/coverage/index.html"