Add github action for testing a PR branch on push

.docker/Dockerfile

@@ -6,6 +6,7 @@ RUN corepack use pnpm@*
 
 ARG WORKDIR=/chatbot_server
 WORKDIR ${WORKDIR}
+COPY scripts/ ${WORKDIR}/scripts/
 
 # Adding package.json first will cache our dependencies so
 # that they do not have to be re-installed when the image rebuilds
@@ -20,6 +21,7 @@ COPY . .
 RUN chmod +x ./scripts/*.sh || true
 # Set up git
 RUN apk add git
-ADD git-config.txt ${WORKDIR}
+
+RUN if [ -f git-config.txt ]; then cp git-config.txt ~/.gitconfig; fi
 
 EXPOSE 7000

.github/workflows/test.yml

@@ -0,0 +1,43 @@
+name: Test code
+
+on:
+  workflow_dispatch:
+  pull_request:
+
+permissions:
+  contents: read
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+
+      - name: Check out repo
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and run linter
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: .docker/Dockerfile
+          tags: test-chatbot
+          outputs: type=docker
+
+      - name: Run tests
+        env:
+            DOCKER_BUILDKIT: 0
+        run: |
+          docker run --rm --memory=1g \
+          -v ${{ github.workspace }}:/chatbot_server \
+          -w /chatbot_server \
+          test-chatbot \
+          sh -c "pnpm install --frozen-lockfile && pnpm test"