test github actions workflow

.github/workflows/test.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the workflow will run
+on: 
+  push:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# 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:
+    # The type of runner that the job will run on
+    runs-on: openscad/mxe-x86_64-deps
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      # Runs a single command using the runners shell
+      - name: Run a one-line script
+        run: echo Hello, world!
+
+      # Runs a set of commands using the runners shell
+      - name: Run a multi-line script
+        run: |
+          echo Add other actions to build,
+          echo test, and deploy your project.
+     - name: Check if openscad is installed
+       run: which openscad

tests/test.scad

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+include <../includes.scad>
+
+key();