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require 'helper'
require 'set'
module Arel
module Nodes
describe 'Binary' do
describe '#hash' do
it 'generates a hash based on its value' do
eq = Equality.new('foo', 'bar')
eq2 = Equality.new('foo', 'bar')
eq3 = Equality.new('bar', 'baz')
assert_equal eq.hash, eq2.hash
refute_equal eq.hash, eq3.hash
end
it 'generates a hash specific to its class' do
eq = Equality.new('foo', 'bar')
neq = NotEqual.new('foo', 'bar')
refute_equal eq.hash, neq.hash
end
end
end
end
end
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