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require File.dirname(__FILE__) + '/../../spec_helper'
require 'database_cleaner/active_record/transaction'
require 'active_record'
module DatabaseCleaner
module ActiveRecord
describe Transaction do
let (:connection) { double("connection") }
before(:each) do
::ActiveRecord::Base.stub(:connection).and_return(connection)
end
describe "#start" do
[:begin_transaction, :begin_db_transaction].each do |begin_transaction_method|
context "using #{begin_transaction_method}" do
before do
connection.stub(:transaction)
connection.stub(begin_transaction_method)
connection.stub(:respond_to?).with(:begin_transaction).and_return(:begin_transaction == begin_transaction_method)
end
it "should increment open transactions if possible" do
connection.stub(:respond_to?).with(:increment_open_transactions).and_return(true)
connection.should_receive(:increment_open_transactions)
Transaction.new.start
end
it "should tell ActiveRecord to increment connection if its not possible to increment current connection" do
connection.stub(:respond_to?).with(:increment_open_transactions).and_return(false)
::ActiveRecord::Base.should_receive(:increment_open_transactions)
Transaction.new.start
end
it "should start a transaction" do
connection.stub(:respond_to?).with(:increment_open_transactions).and_return(true)
connection.stub(:increment_open_transactions)
connection.should_receive(begin_transaction_method)
connection.should_receive(:transaction)
Transaction.new.start
end
end
end
end
describe "#clean" do
context "manual accounting of transaction count" do
it "should start a transaction" do
connection.should_receive(:open_transactions).and_return(1)
connection.stub(:decrement_open_transactions)
connection.should_receive(:rollback_db_transaction)
Transaction.new.clean
end
it "should decrement open transactions if possible" do
connection.should_receive(:open_transactions).and_return(1)
connection.stub(:respond_to?).with(:decrement_open_transactions).and_return(true)
connection.stub(:respond_to?).with(:rollback_transaction_records, true).and_return(false)
connection.stub(:respond_to?).with(:rollback_transaction).and_return(false)
connection.stub(:rollback_db_transaction)
connection.should_receive(:decrement_open_transactions)
Transaction.new.clean
end
it "should not try to decrement or rollback if open_transactions is 0 for whatever reason" do
connection.should_receive(:open_transactions).and_return(0)
Transaction.new.clean
end
it "should decrement connection via ActiveRecord::Base if connection won't" do
connection.should_receive(:open_transactions).and_return(1)
connection.stub(:respond_to?).with(:decrement_open_transactions).and_return(false)
connection.stub(:respond_to?).with(:rollback_transaction_records, true).and_return(false)
connection.stub(:respond_to?).with(:rollback_transaction).and_return(false)
connection.stub(:rollback_db_transaction)
::ActiveRecord::Base.should_receive(:decrement_open_transactions)
Transaction.new.clean
end
end
context "automatic accounting of transaction count (AR 4)" do
before {stub_const("ActiveRecord::VERSION::MAJOR", 4) }
it "should start a transaction" do
connection.stub(:rollback_db_transaction)
connection.should_receive(:open_transactions).and_return(1)
connection.should_not_receive(:decrement_open_transactions)
connection.should_receive(:rollback_transaction)
Transaction.new.clean
end
it "should decrement open transactions if possible" do
connection.stub(:rollback_transaction)
connection.should_receive(:open_transactions).and_return(1)
connection.should_not_receive(:decrement_open_transactions)
Transaction.new.clean
end
it "should not try to decrement or rollback if open_transactions is 0 for whatever reason" do
connection.should_receive(:open_transactions).and_return(0)
Transaction.new.clean
end
it "should decrement connection via ActiveRecord::Base if connection won't" do
connection.should_receive(:open_transactions).and_return(1)
connection.stub(:respond_to?).with(:rollback_transaction_records, true).and_return(false)
connection.stub(:respond_to?).with(:rollback_transaction).and_return(true)
connection.stub(:rollback_transaction)
::ActiveRecord::Base.should_not_receive(:decrement_open_transactions)
Transaction.new.clean
end
end
end
describe "#connection_maintains_transaction_count?" do
it "should return true if the major active record version is < 4" do
stub_const("ActiveRecord::VERSION::MAJOR", 3)
Transaction.new.connection_maintains_transaction_count?.should be_true
end
it "should return false if the major active record version is > 3" do
stub_const("ActiveRecord::VERSION::MAJOR", 4)
Transaction.new.connection_maintains_transaction_count?.should be_false
end
end
end
end
end
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