diff --git a/.github/actions/test/action.yml b/.github/actions/test/action.yml
index 37e05ae..e1ce158 100644
--- a/.github/actions/test/action.yml
+++ b/.github/actions/test/action.yml
@@ -17,22 +17,83 @@ runs:
         ref: master
         path: redmine-src
 
-    - run: |
-        docker volume create redmine-bundle-cache
+    - name: Set up redmined
+      run: |
+        chmod +x redmined
+        mkdir $HOME/.local/bin
+        cp redmined $HOME/.local/bin
 
-        cd redmine-src
+        echo "REDMINED_IMAGE=redmined:test" >> $GITHUB_ENV
+        echo 'REDMINED_CONTAINER_ENVS="CUSTOM_ENV1=1 CUSTOM_ENV2=2"' >> $GITHUB_ENV
+        echo "REDMINED_REDMINE_PORT=3001" >> $GITHUB_ENV
+      shell: bash
 
+    - name: Set up Redmine
+      run: |
         cat <<EOS > config/database.yml
         development:
           adapter: sqlite3
           database: db/development.sqlite3
+        test:
+          adapter: sqlite3
+          database: db/development.sqlite3
         EOS
 
-        docker run --rm \
-          -v ${PWD}:/redmine \
-          -v redmine-bundle-cache:/bundle \
-          -u root:root --entrypoint "" \
-          redmined:test \
-          bash -c "bundle install && bin/rails db:prepare && RAILS_ENV=development bin/about"
-      shell: bash
+        # This is a workaround for the issue that the Gemfile.lock is not writable
+        # chmod a+w -R log tmp files db
+        # touch Gemfile.lock && chmod a+w Gemfile.lock
+        # touch tmp/local_secret.txt && chmod a+w -R tmp/local_secret.txt
+        # touch db/development.sqlite3 && chmod a+w db/development.sqlite3
+        chmod a+w -R .
+
+        redmined bundle install
+        redmined bin/rails db:prepare
+      shell: script -q -e -c "bash {0}"
+      working-directory: redmine-src
+
+    - name: Test
+      run: |
+        docker volume ls
+
+        redmined cat /etc/os-release
+        redmined env RAILS_ENV=development bin/about
+
+        redmined printenv | grep CUSTOM_ENV1=1
+        redmined printenv | grep CUSTOM_ENV2=2
+        redmined printenv | grep PORT=3001
+
+        redmined bin/rails test test/unit/news_test.rb
+        redmined bin/rails test test/system/my_page_test.rb
+      shell: script -q -e -c "bash {0}"
+      working-directory: redmine-src
+
+    - name: Test the indivisual settings
+      run: |
+        cat <<EOS > .redmined.json
+        {
+          "default": {
+            "name": "default",
+            "port": 4000,
+            "env": {
+              "DEFAULT_ENV": "1"
+            }
+          },
+          "other1": {
+            "name": "other1",
+            "port": 4001,
+            "env": {
+              "OTHER1_ENV": "1"
+            }
+          }
+        }
+        EOS
+
+        # Test against default
+        redmined printenv | grep DEFAULT_ENV=1
+        redmined printenv | grep PORT=4000
 
+        # Test against other1
+        redmined -n other1 printenv | grep OTHER1_ENV=1
+        redmined -n other1 printenv | grep PORT=4001
+      shell: script -q -e -c "bash {0}"
+      working-directory: redmine-src