require 'helper' module Arel module Nodes class TestInfixOperation < MiniTest::Unit::TestCase def test_construct operation = InfixOperation.new :+, 1, 2 assert_equal :+, operation.operator assert_equal 1, operation.left assert_equal 2, operation.right end def test_operation_alias operation = InfixOperation.new :+, 1, 2 aliaz = operation.as('zomg') assert_kind_of As, aliaz assert_equal operation, aliaz.left assert_equal 'zomg', aliaz.right end def test_opertaion_ordering operation = InfixOperation.new :+, 1, 2 ordering = operation.desc assert_kind_of Descending, ordering assert_equal operation, ordering.expr assert ordering.descending? end def test_equality_with_same_ivars array = [InfixOperation.new(:+, 1, 2), InfixOperation.new(:+, 1, 2)] assert_equal 1, array.uniq.size end def test_inequality_with_different_ivars array = [InfixOperation.new(:+, 1, 2), InfixOperation.new(:+, 1, 3)] assert_equal 2, array.uniq.size end end end end