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require "cases/helper"
require 'models/entrant'
require 'models/bird'
# So we can test whether Course.connection survives a reload.
require_dependency 'models/course'
class MultipleDbTest < ActiveRecord::TestCase
self.use_transactional_fixtures = false
def setup
@courses = create_fixtures("courses") { Course.retrieve_connection }
@colleges = create_fixtures("colleges") { College.retrieve_connection }
@entrants = create_fixtures("entrants")
end
def test_connected
assert_not_nil Entrant.connection
assert_not_nil Course.connection
end
def test_proper_connection
assert_not_equal(Entrant.connection, Course.connection)
assert_equal(Entrant.connection, Entrant.retrieve_connection)
assert_equal(Course.connection, Course.retrieve_connection)
assert_equal(ActiveRecord::Base.connection, Entrant.connection)
end
def test_find
c1 = Course.find(1)
assert_equal "Ruby Development", c1.name
c2 = Course.find(2)
assert_equal "Java Development", c2.name
e1 = Entrant.find(1)
assert_equal "Ruby Developer", e1.name
e2 = Entrant.find(2)
assert_equal "Ruby Guru", e2.name
e3 = Entrant.find(3)
assert_equal "Java Lover", e3.name
end
def test_associations
c1 = Course.find(1)
assert_equal 2, c1.entrants.count
e1 = Entrant.find(1)
assert_equal e1.course.id, c1.id
c2 = Course.find(2)
assert_equal 1, c2.entrants.count
e3 = Entrant.find(3)
assert_equal e3.course.id, c2.id
end
def test_course_connection_should_survive_dependency_reload
assert Course.connection
ActiveSupport::Dependencies.clear
Object.send(:remove_const, :Course)
require_dependency 'models/course'
assert Course.connection
end
def test_transactions_across_databases
c1 = Course.find(1)
e1 = Entrant.find(1)
begin
Course.transaction do
Entrant.transaction do
c1.name = "Typo"
e1.name = "Typo"
c1.save
e1.save
raise "No I messed up."
end
end
rescue
# Yup caught it
end
assert_equal "Typo", c1.name
assert_equal "Typo", e1.name
assert_equal "Ruby Development", Course.find(1).name
assert_equal "Ruby Developer", Entrant.find(1).name
end
def test_arel_table_engines
assert_equal Entrant.arel_engine, Bird.arel_engine
end
def test_associations_should_work_when_model_has_no_connection
begin
ActiveRecord::Model.remove_connection
assert_nothing_raised ActiveRecord::ConnectionNotEstablished do
College.first.courses.first
end
ensure
ActiveRecord::Model.establish_connection 'arunit'
end
end
end
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