Run install and tests in devenv container

.github/workflows/docker-image.yml

@@ -3,7 +3,8 @@ name: Create and publish a Docker image
 
 # Configures this workflow to run every time a change is pushed to the branch called `release`.
 on:
-  push
+  push:
+    branches: ['release'] # TODO: Should be push to master, but action currently fails when trying to push Docker image (ERROR: unauthorized: access token has insufficient scopes)
 
 # Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
 env:

.github/workflows/test.yml

@@ -1,14 +1,17 @@
+# tests installation of Ambit in devenv Docker container and execution of tests
 name: testing
 on:
   push
 jobs:
   container-job:
     runs-on: ubuntu-latest
     container:
-      image: ghcr.io/marchirschvogel/ambit:latest
+      image: ghcr.io/marchirschvogel/ambit:devenv
     steps:
       - name: Checkout Ambit
         run: git clone https://github.com/marchirschvogel/ambit.git
+      - name: Install latest Ambit dev version
+        run: python3 -m pip install git+https://github.com/marchirschvogel/ambit.git --no-cache-dir
       - name: Switch to Ambit tests folder
         run: cd ambit/tests
       - name: Run Ambit tests