[ADD] Eldev with CI

.github/workflows/test.yml

@@ -0,0 +1,74 @@
+name: CI
+
+on:
+  push:
+    paths-ignore: ['**.md']
+  pull_request:
+    paths-ignore: ['**.md']
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.emacs_version == 'snapshot' }}
+
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          # - macos-latest
+          # - windows-latest
+        emacs_version: [
+          '24.1',
+          # '25.1', '25.2', '25.3',
+          # '26.1', '26.2', '26.3',
+          # '27.1', '27.2',
+          # '28.1', '28.2',
+          # '29.1', '29.2', '29.3',
+          # 'snapshot'
+        ]
+
+    steps:
+      - name: Set up Emacs
+        uses: jcs090218/setup-emacs@master
+        with:
+          version: ${{ matrix.emacs_version }}
+
+      - name: Install Eldev
+        uses: emacs-eldev/setup-eldev@v1
+
+      - name: Check out the source code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Test the project
+        run: |
+          eldev \
+              --debug \
+              --packaged \
+              --trace \
+              --time \
+              --color=always \
+              test --expect 20
+
+      - name: Ensure clean byte-compilation
+        run: |
+          eldev \
+              --debug \
+              --trace \
+              --time \
+              --color=always \
+              compile \
+              --warnings-as-errors
+
+      - name: Ensure that copyright notices are up-to-date
+        run: |
+          eldev \
+              --verbose \
+              --debug \
+              --packaged \
+              --trace \
+              --time \
+              --color=always \
+              --backtrace-on-abort \
+              doctor --all-tests