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require File.join(File.dirname(__FILE__), '..', '..', '..', '..', '..', 'spec_helper')
module Arel
describe Join do
before do
@users = Array.new([
[1, 'bryan' ],
[2, 'emilio' ],
[3, 'nick']
], [:id, :name])
@photos = Table.new(:photos)
@photos.delete
@photos \
.insert(@photos[:id] => 1, @photos[:user_id] => 1, @photos[:camera_id] => 6) \
.insert(@photos[:id] => 2, @photos[:user_id] => 2, @photos[:camera_id] => 42)
end
describe 'when the in memory relation is on the left' do
it 'joins across engines' do
@users \
.join(@photos) \
.on(@users[:id].eq(@photos[:user_id])) \
.project(@users[:name], @photos[:camera_id]) \
.let do |relation|
relation.call.should == [
Row.new(relation, ['bryan', '6']),
Row.new(relation, ['emilio', '42'])
]
end
end
end
describe 'when the in memory relation is on the right' do
it 'joins across engines' do
@photos \
.join(@users) \
.on(@users[:id].eq(@photos[:user_id])) \
.project(@users[:name], @photos[:camera_id]) \
.let do |relation|
relation.call.should == [
Row.new(relation, ['bryan', '6']),
Row.new(relation, ['emilio', '42'])
]
end
end
end
end
end
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