Test against MySQL and SQLite

Author: Nicolas Rodriguez

.travis.yml

@@ -14,7 +14,15 @@ after_success:
   - bundle exec codeclimate-test-reporter
 services:
   - postgresql
+  - mysql
 addons:
   postgresql: '9.6'
+  mariadb: '10.0'
 before_script:
+  - mysql -e 'create database ajax_datatables_rails;'
   - psql -c 'create database ajax_datatables_rails;' -U postgres
+env:
+  matrix:
+    - DB_ADAPTER=postgresql
+    - DB_ADAPTER=mysql2
+    - DB_ADAPTER=sqlite3

ajax-datatables-rails.gemspec

@@ -18,6 +18,8 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rails', '>= 4.2'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'pg'
+  s.add_development_dependency 'mysql2'
+  s.add_development_dependency 'sqlite3'
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'generator_spec'
   s.add_development_dependency 'pry'

ajax_datatables_rails

@@ -85,12 +85,28 @@
         expect(result).to be_a(Arel::Nodes::And)
       end
 
-      it 'can call #to_sql on returned object' do
-        result = datatable.send(:build_conditions_for_selected_columns)
-        expect(result).to respond_to(:to_sql)
-        expect(result.to_sql).to eq(
-          "CAST(\"users\".\"username\" AS TEXT) ILIKE '%doe%' AND CAST(\"users\".\"email\" AS TEXT) ILIKE '%example%'"
-        )
+      if AjaxDatatablesRails.config.db_adapter == :postgresql
+        context 'when db_adapter is postgresql' do
+          it 'can call #to_sql on returned object' do
+            result = datatable.send(:build_conditions_for_selected_columns)
+            expect(result).to respond_to(:to_sql)
+            expect(result.to_sql).to eq(
+              "CAST(\"users\".\"username\" AS TEXT) ILIKE '%doe%' AND CAST(\"users\".\"email\" AS TEXT) ILIKE '%example%'"
+            )
+          end
+        end
+      end
+
+      if AjaxDatatablesRails.config.db_adapter.in? %i[mysql2 sqlite3]
+        context 'when db_adapter is mysql2' do
+          it 'can call #to_sql on returned object' do
+            result = datatable.send(:build_conditions_for_selected_columns)
+            expect(result).to respond_to(:to_sql)
+            expect(result.to_sql).to eq(
+              "CAST(`users`.`username` AS CHAR) LIKE '%doe%' AND CAST(`users`.`email` AS CHAR) LIKE '%example%'"
+            )
+          end
+        end
       end
     end
 

spec/ajax-datatables-rails/orm/active_record_filter_records_spec.rb

@@ -21,9 +21,9 @@
     FactoryGirl.find_definitions
   end
 
-  config.before(:each) do
+  config.after(:each) do
     AjaxDatatablesRails.configure do |c|
-      c.db_adapter = :sqlite
+      c.db_adapter = ActiveRecord::Base.connection.adapter_name.downcase.to_sym
       c.orm = :active_record
     end
   end
@@ -58,10 +58,15 @@
 require 'ajax-datatables-rails'
 
 ActiveRecord::Base.establish_connection(
-  adapter:  'postgresql',
+  adapter:  ENV.fetch('DB_ADAPTER', 'postgresql'),
   database: 'ajax_datatables_rails'
 )
 
+AjaxDatatablesRails.configure do |c|
+  c.db_adapter = ActiveRecord::Base.connection.adapter_name.downcase.to_sym
+  c.orm = :active_record
+end
+
 load File.dirname(__FILE__) + '/support/schema.rb'
 load File.dirname(__FILE__) + '/support/test_helpers.rb'
 require File.dirname(__FILE__) + '/support/test_models.rb'