Add MySQL test config

Author: Mattia Roccoberton

.circleci/config.yml

@@ -7,9 +7,19 @@ jobs:
     docker:
       - image: circleci/ruby:2.6.6-node
         environment:
-          RAILS_ENV: test
+          DB_HOST: 127.0.0.1
           PGHOST: 127.0.0.1
           PGUSER: root
+          RAILS_ENV: test
+      - image: circleci/mysql:8.0.20
+        command: [--default-authentication-plugin=mysql_native_password]
+        environment:
+          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_ROOT_HOST: '%'
+          MYSQL_ROOT_PASSWORD: ''
+          MYSQL_DATABASE: circle-test_test
+          MYSQL_USER: user
+          MYSQL_PASSWORD: ''
       - image: circleci/postgres:9.6.15-alpine
         environment:
           POSTGRES_USER: root
@@ -28,14 +38,21 @@ jobs:
       - save_cache:
           key: gem-cache-{{ checksum "active_storage_db.gemspec" }}
           paths: vendor/bundle
+      # - run:
+      #     name: Run PostgreSQL Specs
+      #     command: |
+      #       DB=postgresql bin/rails db:reset
+      #       DB=postgresql bin/rspec \
+      #         --profile 10 \
+      #         --format RspecJunitFormatter \
+      #         --out test_results/rspec.xml \
+      #         --format progress \
+      #         $(circleci tests glob "spec/**/*_spec.rb")
       - run:
-          name: PostgreSQL DB Setup
-          command: |
-            DB=postgresql bin/rails db:reset
-      - run:
-          name: Run PostgreSQL Specs
+          name: Run MySQL Specs
           command: |
-            DB=postgresql bin/rspec \
+            DB=mysql bin/rails db:reset
+            DB=mysql bin/rspec \
               --profile 10 \
               --format RspecJunitFormatter \
               --out test_results/rspec.xml \

spec/dummy/config/database.yml

@@ -2,18 +2,19 @@
 when 'mysql' %>
 test:
   adapter: mysql2
-  database: active_storage_db_dummy_test
-  username: root
-  password:
+  host: <%= ENV.fetch('DB_HOST') { '127.0.0.1' } %>
+  database: <%= ENV.fetch('DB_NAME') { 'active_storage_db_dummy_test' } %>
+  username: <%= ENV.fetch('DB_USERNAME') { 'root' } %>
+  password: <%= ENV.fetch('DB_PASSWORD') { '' } %>
   encoding: utf8
-  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  pool: <%= ENV.fetch('RAILS_MAX_THREADS') { 5 } %>
 <% when 'postgres', 'postgresql' %>
 test:
   adapter: postgresql
   database: active_storage_db_dummy_test
   encoding: utf8
   min_messages: warning
-  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  pool: <%= ENV.fetch('RAILS_MAX_THREADS') { 5 } %>
 <% else %>
   <% raise "Invalid or empty env DB #{ENV['DB']}" %>
 <% end %>