try mac version

.github/workflows/run-tests.yml

@@ -1,20 +1,30 @@
 name: Execution tests
 on: [push]
 
-defaults:
-  run:
-    shell: bash
 jobs:
   gitwatch-tests:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macOS-latest]
     timeout-minutes: 2
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
       - name: Install tools
         run: |
-          sudo apt-get -y install inotify-tools
-          sudo apt-get -y install bats
+          if [ "$RUNNER_OS" == "Linux" ]; then
+            sudo apt-get -y install inotify-tools
+            sudo apt-get -y install bats
+          elif [ "$RUNNER_OS" == "MacOS" ]; then
+            brew install fswatch
+            brew install coreutils   # in order to get readlink
+            brew install bats-core
+          else
+            echo "Unsupported OS: $RUNNER_OS"
+            exit 1
+          fi
+        shell: bash
+      - name: Checkout
+        uses: actions/checkout@v2
       - name: Run the tests
         run: |
           git config --global user.email "test@email.com"