added ci

.github/workflows/runTests.yml

@@ -0,0 +1,49 @@
+name: CI
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        smalltalk: [ pharo9, pharo10, pharo11, pharo12 ]
+        group: [ default ]
+        tests: [ Roassal-Layouts ]
+        os: [ ubuntu-latest ]
+    # The type of runner that the job will run on
+    runs-on: ${{ matrix.os }}
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.12.0
+        with:
+          access_token: ${{ github.token }}
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      # depth 0 will download all the repository history
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      # This will delete roassal and numeric scales and it executes the tests again
+      - name: Run pharo Tests
+        id: tests
+        uses: akevalion/PharoTestsAction@v1
+        with:
+          removes-repo: 'Roassal, RoassalLayouts, Numeric'
+          baseline: 'RoassalLayouts'
+          group: ${{matrix.group}}
+          tests: ${{matrix.tests}}
+          pharo: ${{matrix.smalltalk}}