build: also run tests with java8

.github/workflows/main.yml

@@ -54,7 +54,7 @@ jobs:
 
     - name: Build for test
       uses: docker/build-push-action@v2.7.0
-      if: github.ref_name == 'master'
+      if: github.ref_name == 'java8'
       with:
         context: .
         platforms: linux/amd64
@@ -67,9 +67,11 @@ jobs:
         cache-to: type=gha,mode=max
 
     - name: Run tests
-      if: github.ref_name == 'master'
+      if: github.ref_name == 'java8'
       run: |
         tests/test.sh
+      env:
+        MINECRAFT_VERSION: 1.12.2
 
     - name: Build and push
       id: docker_build

tests/docker-compose.test.yml

@@ -1,14 +0,0 @@
-version: "3.8"
-
-services:
-  monitor:
-    depends_on:
-      - mc
-    image: itzg/mc-monitor:${MC_MONITOR_VERSION:-0.10.4}
-    command: --debug status --host mc --retry-interval 1s --retry-limit 240
-  mc:
-    restart: "no"
-    image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
-    environment:
-      EULA: "TRUE"
-

tests/docker-compose.yml

@@ -11,4 +11,5 @@ services:
     image: ${IMAGE_TO_TEST:-itzg/minecraft-server}
     environment:
       EULA: "TRUE"
+      VERSION: ${MINECRAFT_VERSION:-LATEST}