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require 'cases/helper'
require 'models/post'
require 'models/comment'
module ActiveRecord
class DelegationTest < ActiveRecord::TestCase
fixtures :posts
def call_method(target, method)
method_arity = target.to_a.method(method).arity
if method_arity.zero?
target.send(method)
elsif method_arity < 0
if method == :shuffle!
target.send(method)
else
target.send(method, 1)
end
elsif method_arity == 1
target.send(method, 1)
else
raise NotImplementedError
end
end
end
class DelegationAssociationTest < DelegationTest
def target
Post.first.comments
end
[:&, :+, :[], :all?, :collect, :detect, :each, :each_cons,
:each_with_index, :flat_map, :group_by, :include?, :length,
:map, :none?, :one?, :reverse, :sample, :second, :sort, :sort_by,
:to_ary, :to_set, :to_xml, :to_yaml].each do |method|
test "association delegates #{method} to Array" do
assert_respond_to target, method
end
end
[:compact!, :flatten!, :reject!, :reverse!, :rotate!,
:shuffle!, :slice!, :sort!, :sort_by!, :delete_if,
:keep_if, :pop, :shift, :delete_at, :compact].each do |method|
test "#{method} is not delegated to Array" do
assert_raises(NoMethodError) { call_method(target, method) }
end
end
end
class DelegationRelationTest < DelegationTest
fixtures :comments
def target
Comment.all
end
[:&, :+, :[], :all?, :collect, :detect, :each, :each_cons,
:each_with_index, :flat_map, :group_by, :include?, :length,
:map, :none?, :one?, :reverse, :sample, :second, :sort, :sort_by,
:to_ary, :to_set, :to_xml, :to_yaml].each do |method|
test "relation delegates #{method} to Array" do
assert_respond_to target, method
end
end
[:compact!, :flatten!, :reject!, :reverse!, :rotate!,
:shuffle!, :slice!, :sort!, :sort_by!, :delete_if,
:keep_if, :pop, :shift, :delete_at, :compact].each do |method|
test "#{method} is not delegated to Array" do
assert_raises(NoMethodError) { call_method(target, method) }
end
end
end
end
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