test: snapshot

Author: jcs090218

.github/workflows/test.yml

@@ -17,6 +17,21 @@ jobs:
           - 27.2
           - 28.2
           - 29.4
+        experimental: [false]
+        include:
+        - os: ubuntu-latest
+          emacs-version: snapshot
+          experimental: true
+        - os: macos-latest
+          emacs-version: snapshot
+          experimental: true
+        - os: windows-latest
+          emacs-version: snapshot
+          experimental: true
+        exclude:
+          - os: macos-latest
+            emacs-version: 27.2
+
     steps:
       - uses: actions/checkout@v4