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require 'cases/helper'
require 'models/post'
require 'models/comment'
module ActiveRecord
class DelegationTest < ActiveRecord::TestCase
fixtures :posts
def assert_responds(target, method)
assert target.respond_to?(method)
assert_nothing_raised do
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
else
raise NotImplementedError
end
end
end
end
class DelegationAssociationTest < DelegationTest
def target
Post.first.comments
end
[:map, :collect].each do |method|
test "##{method} is delgated" do
assert_responds(target, method)
assert_equal(target.pluck(:body), target.send(method) {|post| post.body })
end
test "##{method}! is not delgated" do
assert_deprecated do
assert_responds(target, "#{method}!")
end
end
end
[:compact!, :flatten!, :reject!, :reverse!, :rotate!,
:shuffle!, :slice!, :sort!, :sort_by!].each do |method|
test "##{method} delegation is deprecated" do
assert_deprecated do
assert_responds(target, method)
end
end
end
[:select!, :uniq!].each do |method|
test "##{method} is implemented" do
assert_responds(target, method)
end
end
end
class DelegationRelationTest < DelegationTest
def target
Comment.where.not(body: nil)
end
[:map, :collect].each do |method|
test "##{method} is delgated" do
assert_responds(target, method)
assert_equal(target.pluck(:body), target.send(method) {|post| post.body })
end
test "##{method}! is not delgated" do
assert_deprecated do
assert_responds(target, "#{method}!")
end
end
end
[:compact!, :flatten!, :reject!, :reverse!, :rotate!,
:shuffle!, :slice!, :sort!, :sort_by!].each do |method|
test "##{method} delegation is deprecated" do
assert_deprecated do
assert_responds(target, method)
end
end
end
[:select!, :uniq!].each do |method|
test "##{method} triggers an immutable error" do
assert_raises ActiveRecord::ImmutableRelation do
assert_responds(target, method)
end
end
end
end
end
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