ci: cover test for swift

Author: qzhuyan

.github/workflows/ci.yml

@@ -207,6 +207,11 @@ jobs:
 
     - name: Install Rust
       uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8
+      with:
+        components: llvm-tools-preview
+
+    - name: Install cargo-llvm-cov
+      run: cargo install cargo-llvm-cov
 
     - name: Cache Cargo dependencies
       uses: actions/cache@v4
@@ -220,7 +225,45 @@ jobs:
           ${{ runner.os }}-cargo-swift-
 
     - name: Build Rust, Generate Swift Bindings, and Verify swift build
-      run: ./scripts/build_swift_bindings.sh --test
+      run: ./scripts/build_swift_bindings.sh --coverage --test
+
+    - name: Export coverage to lcov
+      run: |
+        PROFDATA_VAR=$(cargo +stable llvm-cov show-env | grep LLVM_PROFDATA) || true
+        PROFDATA_TOOL=$(echo "$PROFDATA_VAR" | cut -d= -f2- | tr -d '"' | tr -d "'" | xargs)
+        if [ -z "$PROFDATA_TOOL" ] || [ ! -x "$PROFDATA_TOOL" ]; then
+          export PATH="$(rustc --print=target-libdir)/../bin:$PATH"
+          PROFDATA_TOOL=$(which llvm-profdata)
+        fi
+        if ls target/llvm-cov-target/*.profraw 2>/dev/null; then
+          "$PROFDATA_TOOL" merge -sparse target/llvm-cov-target/*.profraw \
+            -o target/llvm-cov-target/swift-cov.profdata
+          llvm-cov export -format=lcov \
+            --instr-profile target/llvm-cov-target/swift-cov.profdata \
+            -object target/debug/libflowsdk_ffi.dylib \
+            > lcov-swift.info
+        else
+          echo "No profraw files found; skipping lcov export."
+        fi
+
+    - name: Upload coverage artifacts
+      uses: actions/upload-artifact@v4
+      if: always()
+      with:
+        name: swift-coverage-data
+        path: |
+          lcov-swift.info
+          target/llvm-cov-target/swift-cov.profdata
+          target/llvm-cov-target/*.profraw
+        retention-days: 7
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        files: lcov-swift.info
+        fail_ci_if_error: false
+        token: ${{ secrets.CODECOV_TOKEN }}
+        verbose: true
 
   coverage:
     name: Code Coverage

.gitignore

@@ -17,7 +17,10 @@ swift/xcframework-intermediates/
 swift/FlowSDK.xcframework/
 
 
-# FFI generated code
+# FFI generated code (regenerated by scripts/build_*_bindings.sh; feature-dependent)
+swift/Sources/FlowSDK/flowsdk_ffi.swift
+swift/Sources/flowsdk_ffi/flowsdk_ffi.h
+kotlin/package/src/main/kotlin/uniffi/flowsdk_ffi/flowsdk_ffi.kt
 python/package/flowsdk/flowsdk_ffi.py
 python/package/flowsdk/libflowsdk_ffi.dylib
 python/package/flowsdk/libflowsdk_ffi.so