Add CI support for Windows ARM64

.github/workflows/build_wheels.yml

@@ -60,6 +60,31 @@ jobs:
           name: cibw-wheels-aarch64-${{ matrix.os }}-${{ strategy.job-index }}
           path: ./wheelhouse/*.whl
 
+  build_wheels_windows_arm64:
+    name: py${{ matrix.python-version }} on ${{ matrix.os }} (arm64)
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-11-arm]
+        python-version: [39, 310, 311, 312, 313, 313t, 314, 314t]
+
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@65b8265957fd86372d9689a0acdfd55813970d5d # v3.1.4
+        env:
+          CIBW_BUILD: "cp${{ matrix.python-version}}-*"
+          CIBW_ARCHS: ARM64
+          CIBW_ENABLE: cpython-freethreading
+
+      - uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
+        with:
+          name: cibw-wheels-windows-arm64-${{ matrix.os }}-${{ strategy.job-index }}
+          path: ./wheelhouse/*.whl
+
   build_sdist:
     name: sdist
     runs-on: ubuntu-latest
@@ -86,7 +111,7 @@ jobs:
   join_artifacts:
     name: Join artifacts
     runs-on: ubuntu-latest
-    needs: [build_wheels, build_wheels_aarch64, build_sdist]
+    needs: [build_wheels, build_wheels_aarch64, build_wheels_windows_arm64, build_sdist]
     steps:
      - name: Merge artifacts
        uses: actions/upload-artifact/merge@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4

pyproject.toml

@@ -37,5 +37,6 @@ macos.archs = ["x86_64", "arm64"]
 # Warnings will be silenced with following CIBW_TEST_SKIP
 test-skip = "*-macosx_arm64"
 
-before-test = "pip install pytest hypothesis"
+# Hypothesis >=6.156 does not publish cp313t wheels yet. It will break the CI.
+before-test = "pip install pytest \"hypothesis<6.156\""
 test-command = "pytest {project}/tests --import-mode=append"