ci(tests): Add tests

Author: LukeSavefrogs

.github/test-action.yml

@@ -0,0 +1,45 @@
+name: "Jython tests"
+
+run-name: "Run Jython tests"
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: "Test action"
+    strategy:
+        fail-fast: false
+        matrix:
+            os: 
+                - ubuntu-latest
+                - windows-latest
+                - macos-latest
+            jython_version: 
+                - "2.7.3"
+                - "2.7.2"
+                - "2.7.1"
+                - "2.7.0"
+                - "2.5.3"
+                - "2.5.2"
+                - "2.5.1"
+                - "2.5.0"
+                - "2.2.1"
+                - "2.2"
+
+    runs-on: ${{ matrix.os }}
+    defaults:
+        run:
+          shell: bash
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install Jython ${{ matrix.jython_version }}
+      uses: LukeSavefrogs/setup-jython@v1
+      with:
+        jython-version: "${{ matrix.jython_version }}"
+
+    - name: Run Jython
+      run: |
+        jython -c 'import sys, os; print(os.name, sys.version)';