config.yml.erb in roo_on_rails-2.1.0

- old
+ new
@@ -8,31 +8,43 @@
 # Unsettting these variables restores the default behaviour:-
 #   * BUNDLE_APP_CONFIG
 #   * GEM_HOME
 #   * BUNDLE_PATH
 #   * BUNDLE_BIN
-
+common_ruby_environment: &common_ruby_environment
+  environment:
+    RAILS_ENV: test
+    PGHOST: 127.0.0.1
+    PGUSER: postgres
+    POSTGRES_HOST_AUTH_METHOD: "trust"
+common_pg_environment_vars: &common_pg_environment_vars
+    POSTGRES_USER: postgres
+    POSTGRES_DB: ror_testapp_test
+    POSTGRES_HOST_AUTH_METHOD: "trust"
 <%
   builds = [
     ['2.4.6', 'rails_4'],
     ['2.4.6', 'rails_5'],
     ['2.4.6', 'rails_5_1'],
     ['2.4.6', 'rails_5_2'],
     ['2.5.5', 'rails_4'],
     ['2.5.5', 'rails_5'],
     ['2.5.5', 'rails_5_1'],
-    ['2.5.5', 'rails_5_2']
+    ['2.5.5', 'rails_5_2'],
+    ['2.6.5', 'rails_6']
   ]
 %>
 version: 2
 jobs:
 <% builds.each do |ruby,variant| %>
   build_<%= ruby %>_<%= variant %>:
     docker:
       - image: ruby:<%= ruby %>-alpine
+        <<: *common_ruby_environment
       - image: postgres:9.6-alpine
         environment:
           PGDATA: /dev/shm/pgdata
+          <<: *common_pg_environment_vars
       - image: redis:4-alpine
     steps:
       - checkout
 
       - run: