Add docker layer cache tests

Adding tests for docker layer caching

.github/workflows/test_restore_cache.yml

@@ -86,3 +86,20 @@ jobs:
         run: |
           echo "Cache didn't hit for restore-cache"
           exit 1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        id: build-docker
+        uses: docker/build-push-action@v4
+        with:
+          context: ./docker
+          push: false
+          cache-from: type=gha
+
+      - name: Error if cache doesn't hit for build-docker
+        if: steps.build-docker.outputs.cache-hit == 'false'
+        run: |
+          echo "Cache didn't hit for build-docker"
+          exit 1

.github/workflows/test_save_cache.yml

@@ -64,3 +64,13 @@ jobs:
             myfolder
             myfolder2
           key: cached_folders
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: ./docker
+          push: false
+          cache-to: type=gha,mode=max

docker/Dockerfile

@@ -0,0 +1,3 @@
+FROM alpine:latest
+
+RUN apk add --no-cache curl