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require 'helper'
require 'ostruct'
module Arel
module Nodes
describe 'table alias' do
it 'has an #engine which delegates to the relation' do
engine = 'vroom'
relation = Table.new(:users, engine)
node = TableAlias.new relation, :foo
node.engine.must_equal engine
end
describe 'equality' do
it 'is equal with equal ivars' do
relation1 = Table.new(:users, 'vroom')
node1 = TableAlias.new relation1, :foo
relation2 = Table.new(:users, 'vroom')
node2 = TableAlias.new relation2, :foo
array = [node1, node2]
assert_equal 1, array.uniq.size
end
it 'is not equal with different ivars' do
relation1 = Table.new(:users, 'vroom')
node1 = TableAlias.new relation1, :foo
relation2 = Table.new(:users, 'vroom')
node2 = TableAlias.new relation2, :bar
array = [node1, node2]
assert_equal 2, array.uniq.size
end
end
end
end
end
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