Upload XCResults on test failures

.github/workflows/ci.yml

@@ -17,7 +17,18 @@ jobs:
       - name: Select Xcode ${{ matrix.xcode }}
         run: sudo xcode-select -s /Applications/Xcode_${{ matrix.xcode }}.app
       - name: Run tests
-        run: make test-swift
+        id: run-tests
+        run: make test-macos
+      - name: Zip XCResult
+        id: zip-xcresult
+        if: failure() && steps.run-tests.conclusion == 'failure'
+        run: cd .xcresults; zip -r xcresult-macos.zip macOS.xcresult
+      - name: Upload XCResult
+        if: failure() && steps.zip-xcresult.conclusion == 'success'
+        uses: actions/upload-artifact@v4
+        with:
+          name: xcresult-macos.zip
+          path: .xcresults/xcresult-macos.zip
 
   ubuntu:
     strategy:

.gitignore

@@ -68,3 +68,4 @@ fastlane/screenshots
 fastlane/test_output
 
 .DS_Store
+.xcresults/

Makefile

@@ -9,8 +9,11 @@ test-linux:
 test-macos:
 	set -o pipefail && \
 	xcodebuild test \
-		-scheme SnapshotTesting \
+		-scheme swift-snapshot-testing-Package \
 		-destination platform="macOS" \
+		-resultBundlePath .xcresults/macos \
+		-workspace . \
+		| xcbeautify
 
 test-ios:
 	set -o pipefail && \