update the test.

.github/workflows/test.yml

@@ -128,6 +128,34 @@ jobs:
       matrix:
         platform: [ubuntu-latest, ubuntu-22.04, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022]
 
+    steps:
+      - name: Checkout to branch
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Run changed-files with a single commit history
+        id: changed-files
+        uses: ./
+        with:
+          base_sha: d1c0ee4
+          sha: d1c0ee4
+
+      - name: Show output
+        run: |
+          echo '${{ toJSON(steps.changed-files.outputs) }}'
+        shell:
+          bash
+
+  test-single-commit-history:
+    name: Test changed-files single commit history
+    runs-on: ${{ matrix.platform }}
+    strategy:
+      fail-fast: false
+      max-parallel: 4
+      matrix:
+        platform: [ubuntu-latest, ubuntu-22.04, windows-latest, macos-latest, macos-11, ubuntu-18.04, windows-2022]
+
     steps:
       - name: Checkout to branch
         uses: actions/checkout@v3