Adding AR tests for JDBC connections

New connections:

  jdbcmysql jdbcpostgresql jdbcsqlite3 jdbcderby jdbch2 jdbchsqldb jdbcpostgresql

To test you will need the native database installed (if one is required),
activerecord-jdbc-adapter and the specific activerecord-jdbc<database>-adapter
for the database you are testing.

Run the tests like this:

  jruby -S rake test_jdbcmysql

Signed-off-by: Michael Koziarski <michael@koziarski.com>
[#1685 state:committed]

activerecord/Rakefile

@@ -32,9 +32,13 @@ task :default => :test
 desc 'Run mysql, sqlite, and postgresql tests'
 task :test => %w(test_mysql test_sqlite3 test_postgresql)
 
-for adapter in %w( mysql postgresql sqlite sqlite3 firebird db2 oracle sybase openbase frontbase )
+for adapter in %w( mysql postgresql sqlite sqlite3 firebird db2 oracle sybase openbase frontbase jdbcmysql jdbcpostgresql jdbcsqlite3 jdbcderby jdbch2 jdbchsqldb )
   Rake::TestTask.new("test_#{adapter}") { |t|
-    t.libs << "test" << "test/connections/native_#{adapter}"
+    if adapter =~ /jdbc/
+      t.libs << "test" << "test/connections/jdbc_#{adapter}"
+    else
+      t.libs << "test" << "test/connections/native_#{adapter}"
+    end
     adapter_short = adapter == 'db2' ? adapter : adapter[/^[a-z]+/]
     t.test_files=Dir.glob( "test/cases/**/*_test{,_#{adapter_short}}.rb" ).sort
     t.verbose = true

activerecord/test/connections/jdbc_jdbcderby/connection.rb

@@ -0,0 +1,18 @@
+print "Using Derby via JRuby, activerecord-jdbc-adapter and activerecord-jdbcderby-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'jdbcderby',
+    :database => 'activerecord_unittest'
+  },
+  'arunit2' => {
+    :adapter  => 'jdbcderby',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'

activerecord/test/connections/jdbc_jdbch2/connection.rb

@@ -0,0 +1,18 @@
+print "Using H2 via JRuby, activerecord-jdbc-adapter and activerecord-jdbch2-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'jdbch2',
+    :database => 'activerecord_unittest'
+  },
+  'arunit2' => {
+    :adapter  => 'jdbch2',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'

activerecord/test/connections/jdbc_jdbchsqldb/connection.rb

@@ -0,0 +1,18 @@
+print "Using HSQLDB via JRuby, activerecord-jdbc-adapter and activerecord-jdbchsqldb-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'jdbchsqldb',
+    :database => 'activerecord_unittest'
+  },
+  'arunit2' => {
+    :adapter  => 'jdbchsqldb',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'

activerecord/test/connections/jdbc_jdbcmysql/connection.rb

@@ -0,0 +1,26 @@
+print "Using MySQL via JRuby, activerecord-jdbc-adapter and activerecord-jdbcmysql-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+# GRANT ALL PRIVILEGES ON activerecord_unittest.* to 'rails'@'localhost';
+# GRANT ALL PRIVILEGES ON activerecord_unittest2.* to 'rails'@'localhost';
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'jdbcmysql',
+    :username => 'rails',
+    :encoding => 'utf8',
+    :database => 'activerecord_unittest',
+  },
+  'arunit2' => {
+    :adapter  => 'jdbcmysql',
+    :username => 'rails',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'
+

activerecord/test/connections/jdbc_jdbcpostgresql/connection.rb

@@ -0,0 +1,26 @@
+print "Using Postgrsql via JRuby, activerecord-jdbc-adapter and activerecord-postgresql-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+# createuser rails --createdb --no-superuser --no-createrole
+# createdb -O rails activerecord_unittest
+# createdb -O rails activerecord_unittest2
+
+ActiveRecord::Base.configurations = {
+  'arunit' => {
+    :adapter  => 'jdbcpostgresql',
+    :username => ENV['USER'] || 'rails',
+    :database => 'activerecord_unittest'
+  },
+  'arunit2' => {
+    :adapter  => 'jdbcpostgresql',
+    :username => ENV['USER'] || 'rails',
+    :database => 'activerecord_unittest2'
+  }
+}
+
+ActiveRecord::Base.establish_connection 'arunit'
+Course.establish_connection 'arunit2'
+

activerecord/test/connections/jdbc_jdbcsqlite3/connection.rb

@@ -0,0 +1,25 @@
+print "Using SQLite3 via JRuby, activerecord-jdbc-adapter and activerecord-jdbcsqlite3-adapter\n"
+require_dependency 'models/course'
+require 'logger'
+ActiveRecord::Base.logger = Logger.new("debug.log")
+
+class SqliteError < StandardError
+end
+
+BASE_DIR = FIXTURES_ROOT
+sqlite_test_db  = "#{BASE_DIR}/fixture_database.sqlite3"
+sqlite_test_db2 = "#{BASE_DIR}/fixture_database_2.sqlite3"
+
+def make_connection(clazz, db_file)
+  ActiveRecord::Base.configurations = { clazz.name => { :adapter => 'jdbcsqlite3', :database => db_file, :timeout => 5000 } }
+  unless File.exist?(db_file)
+    puts "SQLite3 database not found at #{db_file}. Rebuilding it."
+    sqlite_command = %Q{sqlite3 "#{db_file}" "create table a (a integer); drop table a;"}
+    puts "Executing '#{sqlite_command}'"
+    raise SqliteError.new("Seems that there is no sqlite3 executable available") unless system(sqlite_command)
+  end
+  clazz.establish_connection(clazz.name)
+end
+
+make_connection(ActiveRecord::Base, sqlite_test_db)
+make_connection(Course, sqlite_test_db2)