Add libffi7 for python 3.8 support (#92)

* Add libffi7 for python 3.8 support

* Add twister unit test check to workflows

* use twister script instead west command for older branch support

.github/workflows/publish-docker.yaml

@@ -82,6 +82,10 @@ jobs:
         run: |
           docker run --rm nordicplayground/nrfconnect-sdk:${{ matrix.sdk_nrf_branch }} west build -b ${{ matrix.native_board }} zephyr/samples/hello_world
 
+      - name: Ensure zephyr twister unit tests works
+        run: |
+          docker run --rm nordicplayground/nrfconnect-sdk:${{ matrix.sdk_nrf_branch }} ./zephyr/scripts/twister -p ${{ matrix.native_board }} -T zephyr/samples/subsys/testsuite/integration
+
       - name: Login to Docker Hub
         uses: docker/login-action@v2
         with:

.github/workflows/verify.yaml

@@ -75,3 +75,7 @@ jobs:
       - name: Ensure native build works
         run: |
           docker run --rm nordicplayground/nrfconnect-sdk:${{ matrix.sdk_nrf_branch }} west build -b ${{ matrix.native_board }} zephyr/samples/hello_world
+
+      - name: Ensure zephyr twister unit tests works
+        run: |
+          docker run --rm nordicplayground/nrfconnect-sdk:${{ matrix.sdk_nrf_branch }} ./zephyr/scripts/twister -p ${{ matrix.native_board }} -T zephyr/samples/subsys/testsuite/integration

Dockerfile

@@ -47,6 +47,13 @@ RUN <<EOT
     apt-get -y install gcc-multilib make
 EOT
 
+#
+# python 3.8 is installed by toolchain manager hence older version of libffi is required
+#
+RUN <<EOT
+    apt-get -y install libffi7
+EOT
+
 # Nordic command line tools
 # Releases: https://www.nordicsemi.com/Products/Development-tools/nrf-command-line-tools/download
 RUN <<EOT