Adding Node.js version file support (#338)

.github/workflows/versions.yml

@@ -78,6 +78,21 @@ jobs:
         run: __tests__/verify-node.sh "${{ matrix.node-version }}"
         shell: bash
 
+  version-file:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup node from node version file
+        uses: ./
+        with:
+          node-version-file: '__tests__/data/.nvmrc'
+      - name: Verify node
+        run: __tests__/verify-node.sh 14
+
   node-dist:
     runs-on: ${{ matrix.os }}
     strategy: