Add Android x86_64 build and test to CI

.github/workflows/ci.yml

@@ -300,6 +300,33 @@ jobs:
             build/tests_macos_arm64
             build/tests_header_only_macos_arm64
 
+  android-x86_64-build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: nttld/setup-ndk@v1
+        with:
+          ndk-version: r27
+        id: ndk
+      - name: Build
+        run: |
+          mkdir build && cd build
+          cmake -G "Ninja" ../ \
+            -DCMAKE_TOOLCHAIN_FILE=${{ steps.ndk.outputs.ndk-path }}/build/cmake/android.toolchain.cmake \
+            -DANDROID_ABI=x86_64 \
+            -DANDROID_PLATFORM=android-24 \
+            -DTCS_ENABLE_TESTS=ON \
+            -DTCS_WARNINGS_AS_ERRORS=ON
+          cmake --build .
+          mv ./tests/tests ./tests_android_x86_64
+          mv ./tests/tests_header_only ./tests_header_only_android_x86_64
+      - uses: actions/upload-artifact@v4
+        with:
+          name: android-x86_64
+          path: |
+            build/tests_android_x86_64
+            build/tests_header_only_android_x86_64
+
   # ---- TESTS ----
 
   windows-tests:
@@ -538,6 +565,31 @@ jobs:
           ./build/tests_header_only_macos_arm64 2>&1 | tee -a $GITHUB_STEP_SUMMARY
           echo '```' >> $GITHUB_STEP_SUMMARY
 
+  android-x86_64-test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    needs: [android-x86_64-build]
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: android-x86_64
+          path: build/
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+      - uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 30
+          arch: x86_64
+          script: |
+            adb push build/tests_android_x86_64 /data/local/tmp/tests
+            adb push build/tests_header_only_android_x86_64 /data/local/tmp/tests_header_only
+            adb shell chmod +x /data/local/tmp/tests /data/local/tmp/tests_header_only
+            adb shell /data/local/tmp/tests
+            adb shell /data/local/tmp/tests_header_only
+
   # ---- DEPLOY ----
 
   sphinx-docs: