Add test for relative paths

.github/workflows/workflow.yml

@@ -57,7 +57,7 @@ jobs:
       uses: actions/checkout@v2
     - name: Generate files
       shell: bash
-      run: __tests__/create-cache-files.sh ${{ runner.os }}
+      run: __tests__/create-cache-files.sh ${{ runner.os }} test-cache
     - name: Save cache
       uses: ./
       with:
@@ -79,7 +79,42 @@ jobs:
         path: test-cache
     - name: Verify cache
       shell: bash
-      run: __tests__/verify-cache-files.sh ${{ runner.os }}
+      run: __tests__/verify-cache-files.sh ${{ runner.os }} test-cache
+
+  # End to end save and restore with relative paths
+  test-save:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Generate files
+      shell: bash
+      run: __tests__/create-cache-files.sh ${{ runner.os }} ~/test-cache
+    - name: Save cache
+      uses: ./
+      with:
+        key: test-relative-${{ runner.os }}-${{ github.run_id }}
+        path: ~test-cache
+  test-restore:
+    needs: test-save
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Restore cache
+      uses: ./
+      with:
+        key: test-relative-${{ runner.os }}-${{ github.run_id }}
+        path: test-cache
+    - name: Verify cache
+      shell: bash
+      run: __tests__/verify-cache-files.sh ${{ runner.os }} ~/test-cache
 
   # End to end with proxy
   test-proxy-save:
@@ -98,7 +133,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v2
     - name: Generate files
-      run: __tests__/create-cache-files.sh proxy
+      run: __tests__/create-cache-files.sh proxy test-cache
     - name: Save cache
       uses: ./
       with:
@@ -126,4 +161,4 @@ jobs:
         key: test-proxy-${{ github.run_id }}
         path: test-cache
     - name: Verify cache
-      run: __tests__/verify-cache-files.sh proxy
+      run: __tests__/verify-cache-files.sh proxy test-cache