103 lines
3.6 KiB
Ruby
103 lines
3.6 KiB
Ruby
require 'spec_helper'
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module Polyamorous
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describe JoinDependency do
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method, join_associations, join_base =
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if ActiveRecord::VERSION::STRING >= '4.1'
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[:instance_eval, 'join_root.drop(1)', :join_root]
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else
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[:send, 'join_associations', :join_base]
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end
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context 'with symbol joins' do
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subject { new_join_dependency Person, articles: :comments }
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specify { expect(subject.send(method, join_associations).size)
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.to eq(2) }
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specify { expect(subject.send(method, join_associations).map(&:join_type))
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.to be_all { Polyamorous::InnerJoin } }
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end
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context 'with has_many :through association' do
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subject { new_join_dependency Person, :authored_article_comments }
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specify { expect(subject.send(method, join_associations).size)
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.to eq 1 }
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specify { expect(subject.send(method, join_associations).first.table_name)
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.to eq 'comments' }
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end
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context 'with outer join' do
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subject { new_join_dependency Person, new_join(:articles, :outer) }
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specify { expect(subject.send(method, join_associations).size)
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.to eq 1 }
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specify { expect(subject.send(method, join_associations).first.join_type)
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.to eq Polyamorous::OuterJoin }
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end
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context 'with nested outer joins' do
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subject { new_join_dependency Person,
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new_join(:articles, :outer) => new_join(:comments, :outer) }
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specify { expect(subject.send(method, join_associations).size)
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.to eq 2 }
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specify { expect(subject.send(method, join_associations).map(&:join_type))
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.to eq [Polyamorous::OuterJoin, Polyamorous::OuterJoin] }
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specify { expect(subject.send(method, join_associations).map(&:join_type))
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.to be_all { Polyamorous::OuterJoin } }
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end
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context 'with polymorphic belongs_to join' do
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subject { new_join_dependency Note, new_join(:notable, :inner, Person) }
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specify { expect(subject.send(method, join_associations).size)
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.to eq 1 }
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specify { expect(subject.send(method, join_associations).first.join_type)
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.to eq Polyamorous::InnerJoin }
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specify { expect(subject.send(method, join_associations).first.table_name)
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.to eq 'people' }
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it 'finds a join association respecting polymorphism' do
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parent = subject.send(join_base)
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reflection = Note.reflect_on_association(:notable)
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expect(subject.find_join_association_respecting_polymorphism(
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reflection, parent, Person))
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.to eq subject.send(method, join_associations).first
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end
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end
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context 'with polymorphic belongs_to join and nested symbol join' do
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subject { new_join_dependency Note,
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new_join(:notable, :inner, Person) => :comments }
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specify { expect(subject.send(method, join_associations).size)
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.to eq 2 }
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specify { expect(subject.send(method, join_associations).map(&:join_type))
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.to be_all { Polyamorous::InnerJoin } }
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specify { expect(subject.send(method, join_associations).first.table_name)
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.to eq 'people' }
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specify { expect(subject.send(method, join_associations)[1].table_name)
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.to eq 'comments' }
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end
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context '#left_outer_join in Rails 5 overrides join type specified',
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if: ActiveRecord::VERSION::MAJOR >= 5 && ActiveRecord::VERSION::MINOR < 2 do
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let(:join_type_class) do
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new_join_dependency(
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Person,
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new_join(:articles)
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).join_constraints(
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[],
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Arel::Nodes::OuterJoin
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).first.joins.map(&:class)
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end
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specify { expect(join_type_class).to eq [Arel::Nodes::OuterJoin] }
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end
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end
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end
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