Run tests before building wheels in CI

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: SteveDiamond

.github/workflows/build.yml

@@ -16,8 +16,27 @@ concurrency:
 
 jobs:
 
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Install dependencies and build
+        run: |
+          pip install build
+          pip install .[test]
+
+      - name: Run tests
+        run: pytest tests/ -v
+
   build_wheels:
     name: Build wheels on ${{ matrix.os }}
+    needs: [test]
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -41,6 +60,7 @@ jobs:
 
   build_sdist:
     name: Build source distribution
+    needs: [test]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -54,33 +74,8 @@ jobs:
           path: dist/*.tar.gz
           compression-level: 0
 
-  test:
-    name: Test wheels
-    needs: [build_wheels]
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-python@v5
-        with:
-          python-version: '3.12'
-
-      - uses: actions/download-artifact@v4
-        with:
-          pattern: cibw-wheels-ubuntu-*
-          path: dist
-          merge-multiple: true
-
-      - name: Install wheel and test dependencies
-        run: |
-          pip install dist/*.whl
-          pip install "diffcp[test]"
-
-      - name: Run tests
-        run: pytest tests/ -v
-
   upload_pypi:
-    needs: [build_wheels, build_sdist, test]
+    needs: [build_wheels, build_sdist]
     runs-on: ubuntu-latest
     environment: pypi
     permissions:

.gitignore

@@ -518,3 +518,5 @@ MigrationBackup/
 .vscode
 .direnv/
 .envrc
+.claude/*
+.claude/