test: setup test matrix

Run tests on using all combinations of minimum and maximum versions of
Python3 and OpenJDK.

Minimum supported versions:

- Python3: most recent patched version of 3.0.
- OpenJDK: most recent patched version of 11.

Maximum supported versions:

- Python3: most recent stable release.
- OpenJDK: most recent stable release.

---

Closes #64
Closes #63

.github/workflows/test-with-max-python-max-java.yaml

@@ -0,0 +1,31 @@
+---
+name: Test
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Build test image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./shell/Dockerfile
+          tags: test-image:latest
+          push: false
+          build-args:
+            - PYTHON3_VERSION=""
+            - OPENJDK_VERSION=""          
+      -
+        name: Test
+        uses: addnab/docker-run-action@v3
+        with:
+          image: test-image:latest
+          run: /plcc/tests/run

.github/workflows/test.yaml → .github/workflows/test-with-max-python-min-java.yaml

@@ -20,6 +20,9 @@ jobs:
           file: ./shell/Dockerfile
           tags: test-image:latest
           push: false
+          build-args:
+            - PYTHON3_VERSION=""
+            - OPENJDK_VERSION="~=11"
       -
         name: Test
         uses: addnab/docker-run-action@v3

.github/workflows/test-with-min-python-max-java.yaml

@@ -0,0 +1,31 @@
+---
+name: Test
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Build test image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./shell/Dockerfile
+          tags: test-image:latest
+          push: false
+          build-args:
+            - PYTHON3_VERSION="~=3.0.0"
+            - OPENJDK_VERSION=""
+      -
+        name: Test
+        uses: addnab/docker-run-action@v3
+        with:
+          image: test-image:latest
+          run: /plcc/tests/run

.github/workflows/test-with-min-python-min-java.yaml

@@ -0,0 +1,31 @@
+---
+name: Test
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+      -
+        name: Build test image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./shell/Dockerfile
+          tags: test-image:latest
+          push: false
+          build-args:
+            - PYTHON3_VERSION="~=3.0.0"
+            - OPENJDK_VERSION="~=11"
+      -
+        name: Test
+        uses: addnab/docker-run-action@v3
+        with:
+          image: test-image:latest
+          run: /plcc/tests/run

shell/Dockerfile

@@ -5,7 +5,8 @@
 FROM alpine:3
 
 # Install Python 3
-RUN apk add --no-cache python3~=3 \
+ARG PYTHON3_VERSION=""
+RUN apk add --no-cache "python3${PYTHON3_VERSION}" \
   && python3 -m ensurepip \
   && pip3 install --upgrade pip setuptools \
   && rm -r /usr/lib/python*/ensurepip \
@@ -14,7 +15,8 @@ RUN apk add --no-cache python3~=3 \
   && rm -r /root/.cache
 
 # Install JDK
-RUN apk add --no-cache openjdk17-jdk~=17
+ARG OPENJDK_VERSION=""
+RUN apk add --no-cache "openjdk17-jdk${OPENJDK_VERSION}"
 RUN which java
 ENV JAVA_HOME="/usr/lib/jvm/default-jvm"
 ENV PATH="${JAVA_HOME}/bin:${PATH}"