Changing test workflow to matrix

.github/workflows/test-matrix.yml

@@ -7,7 +7,10 @@ on:
 jobs:
   # test action works running from the graph  
   test:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
     steps:
     - name: Checkout
       uses: actions/checkout@v1
@@ -23,5 +26,5 @@ jobs:
     - name: Upload Artifact
       uses: actions/upload-artifact@master
       with:
-        name: 'final-file.txt'
+        name: 'final-file-${{ matrix.os }}.txt'
         path: ${{ steps.write_file.outputs.filePath }}

.github/workflows/test-windows.yml

@@ -1,27 +0,0 @@
-name: "Action Test (Windows)"
-on:
-  push:
-    branches:
-      - master
-
-jobs:
-  # test action works running from the graph  
-  test:
-    runs-on: windows-latest
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v1
-    - name: Run Workflow
-      id: write_file
-      uses: ./
-      with:
-        fileName: 'myTemporaryFile.txt'
-        encodedString: ${{ secrets.SOME_ENCODED_STRING }} # SGVsbG8sIFdvcmxkIQ==
-    - name: Echo file
-      run: |
-        echo ${{ steps.write_file.outputs.filePath }}
-    - name: Upload Artifact
-      uses: actions/upload-artifact@master
-      with:
-        name: 'final-file.txt'
-        path: ${{ steps.write_file.outputs.filePath }}