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require 'spec_helper'
module Arel
describe 'tree manager' do
describe 'take' do
it "knows take" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.from(table).project(table['id'])
manager.where(table['id'].eq(1))
manager.take 1
manager.to_sql.should == %{
SELECT "users"."id"
FROM "users"
WHERE "users"."id" = 1
LIMIT 1
}.gsub("\n", '').gsub(/(^\s*|\s*$)/, '').squeeze(' ')
end
it "chains" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.take(1).should == manager
end
end
describe 'where' do
it "knows where" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.from(table).project(table['id'])
manager.where(table['id'].eq(1))
manager.to_sql.should == %{
SELECT "users"."id"
FROM "users"
WHERE "users"."id" = 1
}.gsub("\n", '').gsub(/(^\s*|\s*$)/, '').squeeze(' ')
end
it "chains" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.from(table)
manager.project(table['id']).where(table['id'].eq 1).should == manager
end
end
describe 'from' do
it "makes sql" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.from table
manager.project table['id']
manager.to_sql.should == 'SELECT "users"."id" FROM "users"'
end
it "chains" do
table = Table.new :users
manager = Arel::TreeManager.new Table.engine
manager.from(table).project(table['id']).should == manager
manager.to_sql.should == 'SELECT "users"."id" FROM "users"'
end
end
end
end
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