Matrix for each job.

Author: gsvgit

.github/workflows/build.yml

@@ -2,11 +2,12 @@ name: Build master
 
 on: [push, pull_request]
 
-jobs:
-  strategy:
-    matrix:
-      os: [ubuntu-latest, windows-latest, macOS-latest]
+jobs:  
+
   build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
     runs-on: ${{ matrix.os }}
 
     steps:
@@ -19,6 +20,9 @@ jobs:
       run: dotnet build -c Release
 
   test_cpu:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
     needs: build
     runs-on: ${{ matrix.os }}
     steps: