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require 'helper'
module Arel
class TestNode < MiniTest::Unit::TestCase
def test_includes_factory_methods
assert Node.new.respond_to?(:create_join)
end
def test_all_nodes_are_nodes
Nodes.constants.map { |k|
Nodes.const_get(k)
}.grep(Class).each do |klass|
next if Nodes::SqlLiteral == klass
assert klass.ancestors.include?(Nodes::Node), klass.name
end
end
def test_each
list = []
node = Nodes::Node.new
node.each { |n| list << n }
assert_equal [node], list
end
def test_generator
list = []
node = Nodes::Node.new
node.each.each { |n| list << n }
assert_equal [node], list
end
def test_enumerable
node = Nodes::Node.new
assert_kind_of Enumerable, node
end
end
end
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