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18f83faf71
* `#create_or_find_by/!`: add more tests * Fix docs of `create_or_find_by` This method uses `find_by!` internally.
1931 lines
60 KiB
Ruby
1931 lines
60 KiB
Ruby
# frozen_string_literal: true
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require "cases/helper"
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require "models/tag"
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require "models/tagging"
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require "models/post"
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require "models/topic"
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require "models/comment"
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require "models/author"
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require "models/entrant"
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require "models/developer"
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require "models/project"
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require "models/person"
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require "models/computer"
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require "models/reply"
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require "models/company"
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require "models/bird"
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require "models/car"
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require "models/engine"
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require "models/tyre"
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require "models/minivan"
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require "models/possession"
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require "models/reader"
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require "models/category"
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require "models/categorization"
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require "models/edge"
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require "models/subscriber"
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class RelationTest < ActiveRecord::TestCase
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fixtures :authors, :author_addresses, :topics, :entrants, :developers, :people, :companies, :developers_projects, :accounts, :categories, :categorizations, :categories_posts, :posts, :comments, :tags, :taggings, :cars, :minivans
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def test_do_not_double_quote_string_id
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van = Minivan.last
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assert van
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assert_equal van.id, Minivan.where(minivan_id: van).to_a.first.minivan_id
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end
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def test_do_not_double_quote_string_id_with_array
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van = Minivan.last
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assert van
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assert_equal van, Minivan.where(minivan_id: [van]).to_a.first
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end
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def test_two_scopes_with_includes_should_not_drop_any_include
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# heat habtm cache
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car = Car.incl_engines.incl_tyres.first
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car.tyres.length
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car.engines.length
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car = Car.incl_engines.incl_tyres.first
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assert_no_queries { car.tyres.length }
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assert_no_queries { car.engines.length }
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end
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def test_dynamic_finder
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x = Post.where("author_id = ?", 1)
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assert_respond_to x.klass, :find_by_id
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end
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def test_multivalue_where
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posts = Post.where("author_id = ? AND id = ?", 1, 1)
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assert_equal 1, posts.to_a.size
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end
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def test_scoped
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topics = Topic.all
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assert_kind_of ActiveRecord::Relation, topics
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assert_equal 5, topics.size
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end
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def test_to_json
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assert_nothing_raised { Bird.all.to_json }
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assert_nothing_raised { Bird.all.to_a.to_json }
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end
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def test_to_yaml
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assert_nothing_raised { Bird.all.to_yaml }
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assert_nothing_raised { Bird.all.to_a.to_yaml }
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end
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def test_to_xml
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assert_nothing_raised { Bird.all.to_xml }
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assert_nothing_raised { Bird.all.to_a.to_xml }
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end
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def test_scoped_all
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topics = Topic.all.to_a
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assert_kind_of Array, topics
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assert_no_queries { assert_equal 5, topics.size }
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end
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def test_loaded_all
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topics = Topic.all
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assert_queries(1) do
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2.times { assert_equal 5, topics.to_a.size }
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end
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assert_predicate topics, :loaded?
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end
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def test_scoped_first
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topics = Topic.all.order("id ASC")
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assert_queries(1) do
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2.times { assert_equal "The First Topic", topics.first.title }
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end
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assert_not_predicate topics, :loaded?
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end
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def test_loaded_first
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topics = Topic.all.order("id ASC")
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topics.load # force load
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assert_no_queries do
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assert_equal "The First Topic", topics.first.title
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end
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assert_predicate topics, :loaded?
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end
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def test_loaded_first_with_limit
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topics = Topic.all.order("id ASC")
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topics.load # force load
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assert_no_queries do
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assert_equal ["The First Topic",
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"The Second Topic of the day"], topics.first(2).map(&:title)
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end
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assert_predicate topics, :loaded?
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end
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def test_first_get_more_than_available
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topics = Topic.all.order("id ASC")
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unloaded_first = topics.first(10)
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topics.load # force load
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assert_no_queries do
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loaded_first = topics.first(10)
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assert_equal unloaded_first, loaded_first
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end
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end
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def test_reload
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topics = Topic.all
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assert_queries(1) do
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2.times { topics.to_a }
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end
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assert_predicate topics, :loaded?
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original_size = topics.to_a.size
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Topic.create! title: "fake"
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assert_queries(1) { topics.reload }
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assert_equal original_size + 1, topics.size
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assert_predicate topics, :loaded?
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end
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def test_finding_with_subquery
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relation = Topic.where(approved: true)
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assert_equal relation.to_a, Topic.select("*").from(relation).to_a
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assert_equal relation.to_a, Topic.select("subquery.*").from(relation).to_a
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assert_equal relation.to_a, Topic.select("a.*").from(relation, :a).to_a
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end
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def test_finding_with_subquery_with_binds
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relation = Post.first.comments
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assert_equal relation.to_a, Comment.select("*").from(relation).to_a
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assert_equal relation.to_a, Comment.select("subquery.*").from(relation).to_a
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assert_equal relation.to_a, Comment.select("a.*").from(relation, :a).to_a
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end
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def test_finding_with_subquery_without_select_does_not_change_the_select
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relation = Topic.where(approved: true)
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assert_raises(ActiveRecord::StatementInvalid) do
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Topic.from(relation).to_a
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end
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end
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def test_select_with_subquery_in_from_does_not_use_original_table_name
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relation = Comment.group(:type).select("COUNT(post_id) AS post_count, type")
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subquery = Comment.from(relation).select("type", "post_count")
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assert_equal(relation.map(&:post_count).sort, subquery.map(&:post_count).sort)
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end
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def test_group_with_subquery_in_from_does_not_use_original_table_name
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relation = Comment.group(:type).select("COUNT(post_id) AS post_count,type")
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subquery = Comment.from(relation).group("type").average("post_count")
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assert_equal(relation.map(&:post_count).sort, subquery.values.sort)
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end
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def test_finding_with_subquery_with_eager_loading_in_from
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relation = Comment.includes(:post).where("posts.type": "Post")
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assert_equal relation.to_a, Comment.select("*").from(relation).to_a
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assert_equal relation.to_a, Comment.select("subquery.*").from(relation).to_a
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assert_equal relation.to_a, Comment.select("a.*").from(relation, :a).to_a
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end
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def test_finding_with_subquery_with_eager_loading_in_where
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relation = Comment.includes(:post).where("posts.type": "Post")
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assert_equal relation.sort_by(&:id), Comment.where(id: relation).sort_by(&:id)
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end
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def test_finding_with_conditions
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assert_equal ["David"], Author.where(name: "David").map(&:name)
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assert_equal ["Mary"], Author.where(["name = ?", "Mary"]).map(&:name)
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assert_equal ["Mary"], Author.where("name = ?", "Mary").map(&:name)
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end
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def test_finding_with_order
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topics = Topic.order("id")
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assert_equal 5, topics.to_a.size
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assert_equal topics(:first).title, topics.first.title
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end
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def test_finding_with_arel_order
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topics = Topic.order(Topic.arel_table[:id].asc)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:first).title, topics.first.title
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end
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def test_finding_with_assoc_order
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topics = Topic.order(id: :desc)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_finding_with_arel_assoc_order
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topics = Topic.order(Arel.sql("id") => :desc)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_finding_with_reversed_assoc_order
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topics = Topic.order(id: :asc).reverse_order
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_finding_with_reversed_arel_assoc_order
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topics = Topic.order(Arel.sql("id") => :asc).reverse_order
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_reverse_order_with_function
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topics = Topic.order(Arel.sql("length(title)")).reverse_order
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assert_equal topics(:second).title, topics.first.title
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end
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def test_reverse_arel_assoc_order_with_function
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topics = Topic.order(Arel.sql("length(title)") => :asc).reverse_order
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assert_equal topics(:second).title, topics.first.title
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end
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def test_reverse_order_with_function_other_predicates
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topics = Topic.order(Arel.sql("author_name, length(title), id")).reverse_order
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assert_equal topics(:second).title, topics.first.title
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topics = Topic.order(Arel.sql("length(author_name), id, length(title)")).reverse_order
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_reverse_order_with_multiargument_function
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("concat(author_name, title)")).reverse_order
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end
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("concat(lower(author_name), title)")).reverse_order
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end
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("concat(author_name, lower(title))")).reverse_order
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end
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("concat(lower(author_name), title, length(title)")).reverse_order
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end
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end
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def test_reverse_arel_assoc_order_with_multiargument_function
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assert_nothing_raised do
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Topic.order(Arel.sql("REPLACE(title, '', '')") => :asc).reverse_order
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end
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end
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def test_reverse_order_with_nulls_first_or_last
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("title NULLS FIRST")).reverse_order
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end
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Topic.order(Arel.sql("title nulls last")).reverse_order
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end
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end
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def test_default_reverse_order_on_table_without_primary_key
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assert_raises(ActiveRecord::IrreversibleOrderError) do
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Edge.all.reverse_order
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end
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end
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def test_order_with_hash_and_symbol_generates_the_same_sql
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assert_equal Topic.order(:id).to_sql, Topic.order(id: :asc).to_sql
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end
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def test_finding_with_desc_order_with_string
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topics = Topic.order(id: "desc")
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assert_equal 5, topics.to_a.size
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assert_equal [topics(:fifth), topics(:fourth), topics(:third), topics(:second), topics(:first)], topics.to_a
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end
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def test_finding_with_asc_order_with_string
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topics = Topic.order(id: "asc")
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assert_equal 5, topics.to_a.size
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assert_equal [topics(:first), topics(:second), topics(:third), topics(:fourth), topics(:fifth)], topics.to_a
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end
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def test_support_upper_and_lower_case_directions
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assert_includes Topic.order(id: "ASC").to_sql, "ASC"
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assert_includes Topic.order(id: "asc").to_sql, "ASC"
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assert_includes Topic.order(id: :ASC).to_sql, "ASC"
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assert_includes Topic.order(id: :asc).to_sql, "ASC"
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assert_includes Topic.order(id: "DESC").to_sql, "DESC"
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assert_includes Topic.order(id: "desc").to_sql, "DESC"
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assert_includes Topic.order(id: :DESC).to_sql, "DESC"
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assert_includes Topic.order(id: :desc).to_sql, "DESC"
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end
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def test_raising_exception_on_invalid_hash_params
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e = assert_raise(ArgumentError) { Topic.order(:name, "id DESC", id: :asfsdf) }
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assert_equal 'Direction "asfsdf" is invalid. Valid directions are: [:asc, :desc, :ASC, :DESC, "asc", "desc", "ASC", "DESC"]', e.message
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end
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def test_finding_last_with_arel_order
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topics = Topic.order(Topic.arel_table[:id].asc)
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assert_equal topics(:fifth).title, topics.last.title
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end
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def test_finding_with_order_concatenated
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topics = Topic.order("author_name").order("title")
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fourth).title, topics.first.title
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end
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def test_finding_with_order_by_aliased_attributes
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topics = Topic.order(:heading)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_finding_with_assoc_order_by_aliased_attributes
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topics = Topic.order(heading: :desc)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:third).title, topics.first.title
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end
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def test_finding_with_reorder
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topics = Topic.order("author_name").order("title").reorder("id").to_a
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topics_titles = topics.map(&:title)
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assert_equal ["The First Topic", "The Second Topic of the day", "The Third Topic of the day", "The Fourth Topic of the day", "The Fifth Topic of the day"], topics_titles
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end
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def test_finding_with_reorder_by_aliased_attributes
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topics = Topic.order("author_name").reorder(:heading)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:fifth).title, topics.first.title
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end
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def test_finding_with_assoc_reorder_by_aliased_attributes
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topics = Topic.order("author_name").reorder(heading: :desc)
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assert_equal 5, topics.to_a.size
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assert_equal topics(:third).title, topics.first.title
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end
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def test_finding_with_order_and_take
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entrants = Entrant.order("id ASC").limit(2).to_a
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assert_equal 2, entrants.size
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assert_equal entrants(:first).name, entrants.first.name
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end
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def test_finding_with_cross_table_order_and_limit
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tags = Tag.includes(:taggings).
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order("tags.name asc", "taggings.taggable_id asc", Arel.sql("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)")).
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limit(1).to_a
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assert_equal 1, tags.length
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end
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def test_finding_with_complex_order_and_limit
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tags = Tag.includes(:taggings).references(:taggings).order(Arel.sql("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)")).limit(1).to_a
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assert_equal 1, tags.length
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end
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def test_finding_with_complex_order
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tags = Tag.includes(:taggings).references(:taggings).order(Arel.sql("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)")).to_a
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assert_equal 3, tags.length
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end
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def test_finding_with_sanitized_order
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query = Tag.order([Arel.sql("field(id, ?)"), [1, 3, 2]]).to_sql
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assert_match(/field\(id, 1,3,2\)/, query)
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query = Tag.order([Arel.sql("field(id, ?)"), []]).to_sql
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assert_match(/field\(id, NULL\)/, query)
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query = Tag.order([Arel.sql("field(id, ?)"), nil]).to_sql
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assert_match(/field\(id, NULL\)/, query)
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end
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def test_finding_with_order_limit_and_offset
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entrants = Entrant.order("id ASC").limit(2).offset(1)
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assert_equal 2, entrants.to_a.size
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assert_equal entrants(:second).name, entrants.first.name
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entrants = Entrant.order("id ASC").limit(2).offset(2)
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assert_equal 1, entrants.to_a.size
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assert_equal entrants(:third).name, entrants.first.name
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end
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def test_finding_with_group
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developers = Developer.group("salary").select("salary").to_a
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assert_equal 4, developers.size
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assert_equal 4, developers.map(&:salary).uniq.size
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end
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def test_select_with_block
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even_ids = Developer.all.select { |d| d.id % 2 == 0 }.map(&:id)
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assert_equal [2, 4, 6, 8, 10], even_ids.sort
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end
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def test_joins_with_nil_argument
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assert_nothing_raised { DependentFirm.joins(nil).first }
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end
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def test_finding_with_hash_conditions_on_joined_table
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firms = DependentFirm.joins(:account).where(name: "RailsCore", accounts: { credit_limit: 55..60 }).to_a
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assert_equal 1, firms.size
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assert_equal companies(:rails_core), firms.first
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end
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def test_find_all_with_join
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developers_on_project_one = Developer.joins("LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id").
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where("project_id=1").to_a
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assert_equal 3, developers_on_project_one.length
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developer_names = developers_on_project_one.map(&:name)
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assert_includes developer_names, "David"
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assert_includes developer_names, "Jamis"
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end
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def test_find_on_hash_conditions
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assert_equal Topic.all.merge!(where: { approved: false }).to_a, Topic.where(approved: false).to_a
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end
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def test_joins_with_string_array
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person_with_reader_and_post = Post.joins([
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"INNER JOIN categorizations ON categorizations.post_id = posts.id",
|
|
"INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'"
|
|
]
|
|
).to_a
|
|
assert_equal 1, person_with_reader_and_post.size
|
|
end
|
|
|
|
def test_no_arguments_to_query_methods_raise_errors
|
|
assert_raises(ArgumentError) { Topic.references() }
|
|
assert_raises(ArgumentError) { Topic.includes() }
|
|
assert_raises(ArgumentError) { Topic.preload() }
|
|
assert_raises(ArgumentError) { Topic.group() }
|
|
assert_raises(ArgumentError) { Topic.reorder() }
|
|
end
|
|
|
|
def test_blank_like_arguments_to_query_methods_dont_raise_errors
|
|
assert_nothing_raised { Topic.references([]) }
|
|
assert_nothing_raised { Topic.includes([]) }
|
|
assert_nothing_raised { Topic.preload([]) }
|
|
assert_nothing_raised { Topic.group([]) }
|
|
assert_nothing_raised { Topic.reorder([]) }
|
|
end
|
|
|
|
def test_respond_to_delegates_to_arel
|
|
relation = Topic.all
|
|
fake_arel = Struct.new(:responds) {
|
|
def respond_to?(method, access = false)
|
|
responds << [method, access]
|
|
end
|
|
}.new []
|
|
|
|
relation.extend(Module.new { attr_accessor :arel })
|
|
relation.arel = fake_arel
|
|
|
|
relation.respond_to?(:matching_attributes)
|
|
assert_equal [:matching_attributes, false], fake_arel.responds.first
|
|
end
|
|
|
|
def test_respond_to_dynamic_finders
|
|
relation = Topic.all
|
|
|
|
["find_by_title", "find_by_title_and_author_name"].each do |method|
|
|
assert_respond_to relation, method
|
|
end
|
|
end
|
|
|
|
def test_respond_to_class_methods_and_scopes
|
|
assert_respond_to Topic.all, :by_lifo
|
|
end
|
|
|
|
def test_find_with_readonly_option
|
|
Developer.all.each { |d| assert_not d.readonly? }
|
|
Developer.all.readonly.each { |d| assert d.readonly? }
|
|
end
|
|
|
|
def test_eager_association_loading_of_stis_with_multiple_references
|
|
authors = Author.eager_load(posts: { special_comments: { post: [ :special_comments, :very_special_comment ] } }).
|
|
order("comments.body, very_special_comments_posts.body").where("posts.id = 4").to_a
|
|
|
|
assert_equal [authors(:david)], authors
|
|
assert_no_queries do
|
|
authors.first.posts.first.special_comments.first.post.special_comments
|
|
authors.first.posts.first.special_comments.first.post.very_special_comment
|
|
end
|
|
end
|
|
|
|
def test_find_with_preloaded_associations
|
|
assert_queries(2) do
|
|
posts = Post.preload(:comments).order("posts.id")
|
|
assert posts.first.comments.first
|
|
end
|
|
|
|
assert_queries(2) do
|
|
posts = Post.preload(:comments).order("posts.id")
|
|
assert posts.first.comments.first
|
|
end
|
|
|
|
assert_queries(2) do
|
|
posts = Post.preload(:author).order("posts.id")
|
|
assert posts.first.author
|
|
end
|
|
|
|
assert_queries(2) do
|
|
posts = Post.preload(:author).order("posts.id")
|
|
assert posts.first.author
|
|
end
|
|
|
|
assert_queries(3) do
|
|
posts = Post.preload(:author, :comments).order("posts.id")
|
|
assert posts.first.author
|
|
assert posts.first.comments.first
|
|
end
|
|
end
|
|
|
|
def test_preload_applies_to_all_chained_preloaded_scopes
|
|
assert_queries(3) do
|
|
post = Post.with_comments.with_tags.first
|
|
assert post
|
|
end
|
|
end
|
|
|
|
def test_find_with_included_associations
|
|
assert_queries(2) do
|
|
posts = Post.includes(:comments).order("posts.id")
|
|
assert posts.first.comments.first
|
|
end
|
|
|
|
assert_queries(2) do
|
|
posts = Post.all.includes(:comments).order("posts.id")
|
|
assert posts.first.comments.first
|
|
end
|
|
|
|
assert_queries(2) do
|
|
posts = Post.includes(:author).order("posts.id")
|
|
assert posts.first.author
|
|
end
|
|
|
|
assert_queries(3) do
|
|
posts = Post.includes(:author, :comments).order("posts.id")
|
|
assert posts.first.author
|
|
assert posts.first.comments.first
|
|
end
|
|
end
|
|
|
|
def test_default_scoping_finder_methods
|
|
developers = DeveloperCalledDavid.order("id").map(&:id).sort
|
|
assert_equal Developer.where(name: "David").map(&:id).sort, developers
|
|
end
|
|
|
|
def test_includes_with_select
|
|
query = Post.select("comments_count AS ranking").order("ranking").includes(:comments)
|
|
.where(comments: { id: 1 })
|
|
|
|
assert_equal ["comments_count AS ranking"], query.select_values
|
|
assert_equal 1, query.to_a.size
|
|
end
|
|
|
|
def test_preloading_with_associations_and_merges
|
|
post = Post.create! title: "Uhuu", body: "body"
|
|
reader = Reader.create! post_id: post.id, person_id: 1
|
|
comment = Comment.create! post_id: post.id, body: "body"
|
|
|
|
assert_not_respond_to comment, :readers
|
|
|
|
post_rel = Post.preload(:readers).joins(:readers).where(title: "Uhuu")
|
|
result_comment = Comment.joins(:post).merge(post_rel).to_a.first
|
|
assert_equal comment, result_comment
|
|
|
|
assert_no_queries do
|
|
assert_equal post, result_comment.post
|
|
assert_equal [reader], result_comment.post.readers.to_a
|
|
end
|
|
|
|
post_rel = Post.includes(:readers).where(title: "Uhuu")
|
|
result_comment = Comment.joins(:post).merge(post_rel).first
|
|
assert_equal comment, result_comment
|
|
|
|
assert_no_queries do
|
|
assert_equal post, result_comment.post
|
|
assert_equal [reader], result_comment.post.readers.to_a
|
|
end
|
|
end
|
|
|
|
def test_preloading_with_associations_default_scopes_and_merges
|
|
post = Post.create! title: "Uhuu", body: "body"
|
|
reader = Reader.create! post_id: post.id, person_id: 1
|
|
|
|
post_rel = PostWithPreloadDefaultScope.preload(:readers).joins(:readers).where(title: "Uhuu")
|
|
result_post = PostWithPreloadDefaultScope.all.merge(post_rel).to_a.first
|
|
|
|
assert_no_queries do
|
|
assert_equal [reader], result_post.readers.to_a
|
|
end
|
|
|
|
post_rel = PostWithIncludesDefaultScope.includes(:readers).where(title: "Uhuu")
|
|
result_post = PostWithIncludesDefaultScope.all.merge(post_rel).to_a.first
|
|
|
|
assert_no_queries do
|
|
assert_equal [reader], result_post.readers.to_a
|
|
end
|
|
end
|
|
|
|
def test_loading_with_one_association
|
|
posts = Post.preload(:comments)
|
|
post = posts.find { |p| p.id == 1 }
|
|
assert_equal 2, post.comments.size
|
|
assert_includes post.comments, comments(:greetings)
|
|
|
|
post = Post.where("posts.title = 'Welcome to the weblog'").preload(:comments).first
|
|
assert_equal 2, post.comments.size
|
|
assert_includes post.comments, comments(:greetings)
|
|
|
|
posts = Post.preload(:last_comment)
|
|
post = posts.find { |p| p.id == 1 }
|
|
assert_equal Post.find(1).last_comment, post.last_comment
|
|
end
|
|
|
|
def test_to_sql_on_eager_join
|
|
expected = assert_sql {
|
|
Post.eager_load(:last_comment).order("comments.id DESC").to_a
|
|
}.first
|
|
actual = Post.eager_load(:last_comment).order("comments.id DESC").to_sql
|
|
assert_equal expected, actual
|
|
end
|
|
|
|
def test_to_sql_on_scoped_proxy
|
|
auth = Author.first
|
|
Post.where("1=1").written_by(auth)
|
|
assert_not auth.posts.to_sql.include?("1=1")
|
|
end
|
|
|
|
def test_loading_with_one_association_with_non_preload
|
|
posts = Post.eager_load(:last_comment).order("comments.id DESC")
|
|
post = posts.find { |p| p.id == 1 }
|
|
assert_equal Post.find(1).last_comment, post.last_comment
|
|
end
|
|
|
|
def test_dynamic_find_by_attributes
|
|
david = authors(:david)
|
|
author = Author.preload(:taggings).find_by_id(david.id)
|
|
expected_taggings = taggings(:welcome_general, :thinking_general)
|
|
|
|
assert_no_queries do
|
|
assert_equal expected_taggings, author.taggings.uniq.sort_by(&:id)
|
|
end
|
|
|
|
authors = Author.all
|
|
assert_equal david, authors.find_by_id_and_name(david.id, david.name)
|
|
assert_equal david, authors.find_by_id_and_name!(david.id, david.name)
|
|
end
|
|
|
|
def test_dynamic_find_by_attributes_bang
|
|
author = Author.all.find_by_id!(authors(:david).id)
|
|
assert_equal "David", author.name
|
|
|
|
assert_raises(ActiveRecord::RecordNotFound) { Author.all.find_by_id_and_name!(20, "invalid") }
|
|
end
|
|
|
|
def test_find_id
|
|
authors = Author.all
|
|
|
|
david = authors.find(authors(:david).id)
|
|
assert_equal "David", david.name
|
|
|
|
assert_raises(ActiveRecord::RecordNotFound) { authors.where(name: "lifo").find("42") }
|
|
end
|
|
|
|
def test_find_ids
|
|
authors = Author.order("id ASC")
|
|
|
|
results = authors.find(authors(:david).id, authors(:mary).id)
|
|
assert_kind_of Array, results
|
|
assert_equal 2, results.size
|
|
assert_equal "David", results[0].name
|
|
assert_equal "Mary", results[1].name
|
|
assert_equal results, authors.find([authors(:david).id, authors(:mary).id])
|
|
|
|
assert_raises(ActiveRecord::RecordNotFound) { authors.where(name: "lifo").find(authors(:david).id, "42") }
|
|
assert_raises(ActiveRecord::RecordNotFound) { authors.find(["42", 43]) }
|
|
end
|
|
|
|
def test_find_in_empty_array
|
|
authors = Author.all.where(id: [])
|
|
assert_predicate authors.to_a, :blank?
|
|
end
|
|
|
|
def test_where_with_ar_object
|
|
author = Author.first
|
|
authors = Author.all.where(id: author)
|
|
assert_equal 1, authors.to_a.length
|
|
end
|
|
|
|
def test_find_with_list_of_ar
|
|
author = Author.first
|
|
authors = Author.find([author.id])
|
|
assert_equal author, authors.first
|
|
end
|
|
|
|
def test_find_by_id_with_list_of_ar
|
|
author = Author.first
|
|
authors = Author.find_by_id([author])
|
|
assert_equal author, authors
|
|
end
|
|
|
|
def test_find_all_using_where_twice_should_or_the_relation
|
|
david = authors(:david)
|
|
relation = Author.unscoped
|
|
relation = relation.where(name: david.name)
|
|
relation = relation.where(name: "Santiago")
|
|
relation = relation.where(id: david.id)
|
|
assert_equal [], relation.to_a
|
|
end
|
|
|
|
def test_multi_where_ands_queries
|
|
relation = Author.unscoped
|
|
david = authors(:david)
|
|
sql = relation.where(name: david.name).where(name: "Santiago").to_sql
|
|
assert_match("AND", sql)
|
|
end
|
|
|
|
def test_find_all_with_multiple_should_use_and
|
|
david = authors(:david)
|
|
relation = [
|
|
{ name: david.name },
|
|
{ name: "Santiago" },
|
|
{ name: "tenderlove" },
|
|
].inject(Author.unscoped) do |memo, param|
|
|
memo.where(param)
|
|
end
|
|
assert_equal [], relation.to_a
|
|
end
|
|
|
|
def test_typecasting_where_with_array
|
|
ids = Author.pluck(:id)
|
|
slugs = ids.map { |id| "#{id}-as-a-slug" }
|
|
|
|
assert_equal Author.all.to_a, Author.where(id: slugs).to_a
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation
|
|
david = authors(:david)
|
|
assert_queries(1) {
|
|
relation = Author.where(id: Author.where(id: david.id))
|
|
assert_equal [david], relation.to_a
|
|
}
|
|
|
|
assert_queries(1) {
|
|
relation = Author.where("id in (?)", Author.where(id: david).select(:id))
|
|
assert_equal [david], relation.to_a
|
|
}
|
|
|
|
assert_queries(1) do
|
|
relation = Author.where("id in (:author_ids)", author_ids: Author.where(id: david).select(:id))
|
|
assert_equal [david], relation.to_a
|
|
end
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation_with_bound_values
|
|
david = authors(:david)
|
|
davids_posts = david.posts.order(:id).to_a
|
|
|
|
assert_queries(1) do
|
|
relation = Post.where(id: david.posts.select(:id))
|
|
assert_equal davids_posts, relation.order(:id).to_a
|
|
end
|
|
|
|
assert_queries(1) do
|
|
relation = Post.where("id in (?)", david.posts.select(:id))
|
|
assert_equal davids_posts, relation.order(:id).to_a, "should process Relation as bind variables"
|
|
end
|
|
|
|
assert_queries(1) do
|
|
relation = Post.where("id in (:post_ids)", post_ids: david.posts.select(:id))
|
|
assert_equal davids_posts, relation.order(:id).to_a, "should process Relation as named bind variables"
|
|
end
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation_and_alternate_primary_key
|
|
cool_first = minivans(:cool_first)
|
|
assert_queries(1) {
|
|
relation = Minivan.where(minivan_id: Minivan.where(name: cool_first.name))
|
|
assert_equal [cool_first], relation.to_a
|
|
}
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation_does_not_alter_select_values
|
|
david = authors(:david)
|
|
|
|
subquery = Author.where(id: david.id)
|
|
|
|
assert_queries(1) {
|
|
relation = Author.where(id: subquery)
|
|
assert_equal [david], relation.to_a
|
|
}
|
|
|
|
assert_equal 0, subquery.select_values.size
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation_with_joins
|
|
david = authors(:david)
|
|
assert_queries(1) {
|
|
relation = Author.where(id: Author.joins(:posts).where(id: david.id))
|
|
assert_equal [david], relation.to_a
|
|
}
|
|
end
|
|
|
|
def test_find_all_using_where_with_relation_with_select_to_build_subquery
|
|
david = authors(:david)
|
|
assert_queries(1) {
|
|
relation = Author.where(name: Author.where(id: david.id).select(:name))
|
|
assert_equal [david], relation.to_a
|
|
}
|
|
end
|
|
|
|
def test_last
|
|
authors = Author.all
|
|
assert_equal authors(:bob), authors.last
|
|
end
|
|
|
|
def test_select_with_aggregates
|
|
posts = Post.select(:title, :body)
|
|
|
|
assert_equal 11, posts.count(:all)
|
|
assert_equal 11, posts.size
|
|
assert_predicate posts, :any?
|
|
assert_predicate posts, :many?
|
|
assert_not_empty posts
|
|
end
|
|
|
|
def test_select_takes_a_variable_list_of_args
|
|
david = developers(:david)
|
|
|
|
developer = Developer.where(id: david.id).select(:name, :salary).first
|
|
assert_equal david.name, developer.name
|
|
assert_equal david.salary, developer.salary
|
|
end
|
|
|
|
def test_select_takes_an_aliased_attribute
|
|
first = topics(:first)
|
|
|
|
topic = Topic.where(id: first.id).select(:heading).first
|
|
assert_equal first.heading, topic.heading
|
|
end
|
|
|
|
def test_select_argument_error
|
|
assert_raises(ArgumentError) { Developer.select }
|
|
end
|
|
|
|
def test_count
|
|
posts = Post.all
|
|
|
|
assert_equal 11, posts.count
|
|
assert_equal 11, posts.count(:all)
|
|
assert_equal 11, posts.count(:id)
|
|
|
|
assert_equal 3, posts.where("comments_count > 1").count
|
|
assert_equal 6, posts.where(comments_count: 0).count
|
|
end
|
|
|
|
def test_count_with_block
|
|
posts = Post.all
|
|
assert_equal 8, posts.count { |p| p.comments_count.even? }
|
|
end
|
|
|
|
def test_count_on_association_relation
|
|
author = Author.last
|
|
another_author = Author.first
|
|
posts = Post.where(author_id: author.id)
|
|
|
|
assert_equal author.posts.where(author_id: author.id).size, posts.count
|
|
|
|
assert_equal 0, author.posts.where(author_id: another_author.id).size
|
|
assert_empty author.posts.where(author_id: another_author.id)
|
|
end
|
|
|
|
def test_count_with_distinct
|
|
posts = Post.all
|
|
|
|
assert_equal 4, posts.distinct(true).count(:comments_count)
|
|
assert_equal 11, posts.distinct(false).count(:comments_count)
|
|
|
|
assert_equal 4, posts.distinct(true).select(:comments_count).count
|
|
assert_equal 11, posts.distinct(false).select(:comments_count).count
|
|
end
|
|
|
|
def test_size_with_distinct
|
|
posts = Post.distinct.select(:author_id, :comments_count)
|
|
assert_queries(1) { assert_equal 8, posts.size }
|
|
assert_queries(1) { assert_equal 8, posts.load.size }
|
|
end
|
|
|
|
def test_size_with_eager_loading_and_custom_order
|
|
posts = Post.includes(:comments).order("comments.id")
|
|
assert_queries(1) { assert_equal 11, posts.size }
|
|
assert_queries(1) { assert_equal 11, posts.load.size }
|
|
end
|
|
|
|
def test_size_with_eager_loading_and_custom_order_and_distinct
|
|
posts = Post.includes(:comments).order("comments.id").distinct
|
|
assert_queries(1) { assert_equal 11, posts.size }
|
|
assert_queries(1) { assert_equal 11, posts.load.size }
|
|
end
|
|
|
|
def test_count_explicit_columns
|
|
Post.update_all(comments_count: nil)
|
|
posts = Post.all
|
|
|
|
assert_equal [0], posts.select("comments_count").where("id is not null").group("id").order("id").count.values.uniq
|
|
assert_equal 0, posts.where("id is not null").select("comments_count").count
|
|
|
|
assert_equal 11, posts.select("comments_count").count("id")
|
|
assert_equal 0, posts.select("comments_count").count
|
|
assert_equal 0, posts.count(:comments_count)
|
|
assert_equal 0, posts.count("comments_count")
|
|
end
|
|
|
|
def test_multiple_selects
|
|
post = Post.all.select("comments_count").select("title").order("id ASC").first
|
|
assert_equal "Welcome to the weblog", post.title
|
|
assert_equal 2, post.comments_count
|
|
end
|
|
|
|
def test_size
|
|
posts = Post.all
|
|
|
|
assert_queries(1) { assert_equal 11, posts.size }
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
best_posts = posts.where(comments_count: 0)
|
|
best_posts.load # force load
|
|
assert_no_queries { assert_equal 6, best_posts.size }
|
|
end
|
|
|
|
def test_size_with_limit
|
|
posts = Post.limit(10)
|
|
|
|
assert_queries(1) { assert_equal 10, posts.size }
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
best_posts = posts.where(comments_count: 0)
|
|
best_posts.load # force load
|
|
assert_no_queries { assert_equal 6, best_posts.size }
|
|
end
|
|
|
|
def test_size_with_zero_limit
|
|
posts = Post.limit(0)
|
|
|
|
assert_no_queries { assert_equal 0, posts.size }
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
posts.load # force load
|
|
assert_no_queries { assert_equal 0, posts.size }
|
|
end
|
|
|
|
def test_empty_with_zero_limit
|
|
posts = Post.limit(0)
|
|
|
|
assert_no_queries { assert_equal true, posts.empty? }
|
|
assert_not_predicate posts, :loaded?
|
|
end
|
|
|
|
def test_count_complex_chained_relations
|
|
posts = Post.select("comments_count").where("id is not null").group("author_id").where("comments_count > 0")
|
|
|
|
expected = { 1 => 4, 2 => 1 }
|
|
assert_equal expected, posts.count
|
|
end
|
|
|
|
def test_empty
|
|
posts = Post.all
|
|
|
|
assert_queries(1) { assert_equal false, posts.empty? }
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
no_posts = posts.where(title: "")
|
|
assert_queries(1) { assert_equal true, no_posts.empty? }
|
|
assert_not_predicate no_posts, :loaded?
|
|
|
|
best_posts = posts.where(comments_count: 0)
|
|
best_posts.load # force load
|
|
assert_no_queries { assert_equal false, best_posts.empty? }
|
|
end
|
|
|
|
def test_empty_complex_chained_relations
|
|
posts = Post.select("comments_count").where("id is not null").group("author_id").where("comments_count > 0")
|
|
|
|
assert_queries(1) { assert_equal false, posts.empty? }
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
no_posts = posts.where(title: "")
|
|
assert_queries(1) { assert_equal true, no_posts.empty? }
|
|
assert_not_predicate no_posts, :loaded?
|
|
end
|
|
|
|
def test_any
|
|
posts = Post.all
|
|
|
|
# This test was failing when run on its own (as opposed to running the entire suite).
|
|
# The second line in the assert_queries block was causing visit_Arel_Attributes_Attribute
|
|
# in Arel::Visitors::ToSql to trigger a SHOW TABLES query. Running that line here causes
|
|
# the SHOW TABLES result to be cached so we don't have to do it again in the block.
|
|
#
|
|
# This is obviously a rubbish fix but it's the best I can come up with for now...
|
|
posts.where(id: nil).any?
|
|
|
|
assert_queries(3) do
|
|
assert posts.any? # Uses COUNT()
|
|
assert_not_predicate posts.where(id: nil), :any?
|
|
|
|
assert posts.any? { |p| p.id > 0 }
|
|
assert_not posts.any? { |p| p.id <= 0 }
|
|
end
|
|
|
|
assert_predicate posts, :loaded?
|
|
end
|
|
|
|
def test_many
|
|
posts = Post.all
|
|
|
|
assert_queries(2) do
|
|
assert posts.many? # Uses COUNT()
|
|
assert posts.many? { |p| p.id > 0 }
|
|
assert_not posts.many? { |p| p.id < 2 }
|
|
end
|
|
|
|
assert_predicate posts, :loaded?
|
|
end
|
|
|
|
def test_many_with_limits
|
|
posts = Post.all
|
|
|
|
assert_predicate posts, :many?
|
|
assert_not_predicate posts.limit(1), :many?
|
|
end
|
|
|
|
def test_none?
|
|
posts = Post.all
|
|
assert_queries(1) do
|
|
assert_not posts.none? # Uses COUNT()
|
|
end
|
|
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
assert_queries(1) do
|
|
assert posts.none? { |p| p.id < 0 }
|
|
assert_not posts.none? { |p| p.id == 1 }
|
|
end
|
|
|
|
assert_predicate posts, :loaded?
|
|
end
|
|
|
|
def test_one
|
|
posts = Post.all
|
|
assert_queries(1) do
|
|
assert_not posts.one? # Uses COUNT()
|
|
end
|
|
|
|
assert_not_predicate posts, :loaded?
|
|
|
|
assert_queries(1) do
|
|
assert_not posts.one? { |p| p.id < 3 }
|
|
assert posts.one? { |p| p.id == 1 }
|
|
end
|
|
|
|
assert_predicate posts, :loaded?
|
|
end
|
|
|
|
def test_to_a_should_dup_target
|
|
posts = Post.all
|
|
|
|
original_size = posts.size
|
|
removed = posts.to_a.pop
|
|
|
|
assert_equal original_size, posts.size
|
|
assert_includes posts.to_a, removed
|
|
end
|
|
|
|
def test_build
|
|
posts = Post.all
|
|
|
|
post = posts.new
|
|
assert_kind_of Post, post
|
|
end
|
|
|
|
def test_scoped_build
|
|
posts = Post.where(title: "You told a lie")
|
|
|
|
post = posts.new
|
|
assert_kind_of Post, post
|
|
assert_equal "You told a lie", post.title
|
|
end
|
|
|
|
def test_create
|
|
birds = Bird.all
|
|
|
|
sparrow = birds.create
|
|
assert_kind_of Bird, sparrow
|
|
assert_not_predicate sparrow, :persisted?
|
|
|
|
hen = birds.where(name: "hen").create
|
|
assert_predicate hen, :persisted?
|
|
assert_equal "hen", hen.name
|
|
end
|
|
|
|
def test_create_bang
|
|
birds = Bird.all
|
|
|
|
assert_raises(ActiveRecord::RecordInvalid) { birds.create! }
|
|
|
|
hen = birds.where(name: "hen").create!
|
|
assert_kind_of Bird, hen
|
|
assert_predicate hen, :persisted?
|
|
assert_equal "hen", hen.name
|
|
end
|
|
|
|
def test_create_with_polymorphic_association
|
|
author = authors(:david)
|
|
post = posts(:welcome)
|
|
comment = Comment.where(post: post, author: author).create!(body: "hello")
|
|
|
|
assert_equal author, comment.author
|
|
assert_equal post, comment.post
|
|
end
|
|
|
|
def test_first_or_create
|
|
parrot = Bird.where(color: "green").first_or_create(name: "parrot")
|
|
assert_kind_of Bird, parrot
|
|
assert_predicate parrot, :persisted?
|
|
assert_equal "parrot", parrot.name
|
|
assert_equal "green", parrot.color
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create(name: "parakeet")
|
|
assert_kind_of Bird, same_parrot
|
|
assert_predicate same_parrot, :persisted?
|
|
assert_equal parrot, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_with_no_parameters
|
|
parrot = Bird.where(color: "green").first_or_create
|
|
assert_kind_of Bird, parrot
|
|
assert_not_predicate parrot, :persisted?
|
|
assert_equal "green", parrot.color
|
|
end
|
|
|
|
def test_first_or_create_with_block
|
|
parrot = Bird.where(color: "green").first_or_create { |bird| bird.name = "parrot" }
|
|
assert_kind_of Bird, parrot
|
|
assert_predicate parrot, :persisted?
|
|
assert_equal "green", parrot.color
|
|
assert_equal "parrot", parrot.name
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create { |bird| bird.name = "parakeet" }
|
|
assert_equal parrot, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_with_array
|
|
several_green_birds = Bird.where(color: "green").first_or_create([{ name: "parrot" }, { name: "parakeet" }])
|
|
assert_kind_of Array, several_green_birds
|
|
several_green_birds.each { |bird| assert bird.persisted? }
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create([{ name: "hummingbird" }, { name: "macaw" }])
|
|
assert_kind_of Bird, same_parrot
|
|
assert_equal several_green_birds.first, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_bang_with_valid_options
|
|
parrot = Bird.where(color: "green").first_or_create!(name: "parrot")
|
|
assert_kind_of Bird, parrot
|
|
assert_predicate parrot, :persisted?
|
|
assert_equal "parrot", parrot.name
|
|
assert_equal "green", parrot.color
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create!(name: "parakeet")
|
|
assert_kind_of Bird, same_parrot
|
|
assert_predicate same_parrot, :persisted?
|
|
assert_equal parrot, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_bang_with_invalid_options
|
|
assert_raises(ActiveRecord::RecordInvalid) { Bird.where(color: "green").first_or_create!(pirate_id: 1) }
|
|
end
|
|
|
|
def test_first_or_create_bang_with_no_parameters
|
|
assert_raises(ActiveRecord::RecordInvalid) { Bird.where(color: "green").first_or_create! }
|
|
end
|
|
|
|
def test_first_or_create_bang_with_valid_block
|
|
parrot = Bird.where(color: "green").first_or_create! { |bird| bird.name = "parrot" }
|
|
assert_kind_of Bird, parrot
|
|
assert_predicate parrot, :persisted?
|
|
assert_equal "green", parrot.color
|
|
assert_equal "parrot", parrot.name
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create! { |bird| bird.name = "parakeet" }
|
|
assert_equal parrot, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_bang_with_invalid_block
|
|
assert_raise(ActiveRecord::RecordInvalid) do
|
|
Bird.where(color: "green").first_or_create! { |bird| bird.pirate_id = 1 }
|
|
end
|
|
end
|
|
|
|
def test_first_or_create_with_valid_array
|
|
several_green_birds = Bird.where(color: "green").first_or_create!([{ name: "parrot" }, { name: "parakeet" }])
|
|
assert_kind_of Array, several_green_birds
|
|
several_green_birds.each { |bird| assert bird.persisted? }
|
|
|
|
same_parrot = Bird.where(color: "green").first_or_create!([{ name: "hummingbird" }, { name: "macaw" }])
|
|
assert_kind_of Bird, same_parrot
|
|
assert_equal several_green_birds.first, same_parrot
|
|
end
|
|
|
|
def test_first_or_create_with_invalid_array
|
|
assert_raises(ActiveRecord::RecordInvalid) { Bird.where(color: "green").first_or_create!([ { name: "parrot" }, { pirate_id: 1 } ]) }
|
|
end
|
|
|
|
def test_first_or_initialize
|
|
parrot = Bird.where(color: "green").first_or_initialize(name: "parrot")
|
|
assert_kind_of Bird, parrot
|
|
assert_not_predicate parrot, :persisted?
|
|
assert_predicate parrot, :valid?
|
|
assert_predicate parrot, :new_record?
|
|
assert_equal "parrot", parrot.name
|
|
assert_equal "green", parrot.color
|
|
end
|
|
|
|
def test_first_or_initialize_with_no_parameters
|
|
parrot = Bird.where(color: "green").first_or_initialize
|
|
assert_kind_of Bird, parrot
|
|
assert_not_predicate parrot, :persisted?
|
|
assert_not_predicate parrot, :valid?
|
|
assert_predicate parrot, :new_record?
|
|
assert_equal "green", parrot.color
|
|
end
|
|
|
|
def test_first_or_initialize_with_block
|
|
parrot = Bird.where(color: "green").first_or_initialize { |bird| bird.name = "parrot" }
|
|
assert_kind_of Bird, parrot
|
|
assert_not_predicate parrot, :persisted?
|
|
assert_predicate parrot, :valid?
|
|
assert_predicate parrot, :new_record?
|
|
assert_equal "green", parrot.color
|
|
assert_equal "parrot", parrot.name
|
|
end
|
|
|
|
def test_find_or_create_by
|
|
assert_nil Bird.find_by(name: "bob")
|
|
|
|
bird = Bird.find_or_create_by(name: "bob")
|
|
assert_predicate bird, :persisted?
|
|
|
|
assert_equal bird, Bird.find_or_create_by(name: "bob")
|
|
end
|
|
|
|
def test_find_or_create_by_with_create_with
|
|
assert_nil Bird.find_by(name: "bob")
|
|
|
|
bird = Bird.create_with(color: "green").find_or_create_by(name: "bob")
|
|
assert_predicate bird, :persisted?
|
|
assert_equal "green", bird.color
|
|
|
|
assert_equal bird, Bird.create_with(color: "blue").find_or_create_by(name: "bob")
|
|
end
|
|
|
|
def test_find_or_create_by!
|
|
assert_raises(ActiveRecord::RecordInvalid) { Bird.find_or_create_by!(color: "green") }
|
|
end
|
|
|
|
def test_create_or_find_by
|
|
assert_nil Subscriber.find_by(nick: "bob")
|
|
|
|
subscriber = Subscriber.create!(nick: "bob")
|
|
|
|
assert_equal subscriber, Subscriber.create_or_find_by(nick: "bob")
|
|
assert_not_equal subscriber, Subscriber.create_or_find_by(nick: "cat")
|
|
end
|
|
|
|
def test_create_or_find_by_should_not_raise_due_to_validation_errors
|
|
assert_nothing_raised do
|
|
bird = Bird.create_or_find_by(color: "green")
|
|
assert_predicate bird, :invalid?
|
|
end
|
|
end
|
|
|
|
def test_create_or_find_by_with_non_unique_attributes
|
|
Subscriber.create!(nick: "bob", name: "the builder")
|
|
|
|
assert_raises(ActiveRecord::RecordNotFound) do
|
|
Subscriber.create_or_find_by(nick: "bob", name: "the cat")
|
|
end
|
|
end
|
|
|
|
def test_create_or_find_by_within_transaction
|
|
assert_nil Subscriber.find_by(nick: "bob")
|
|
|
|
subscriber = Subscriber.create!(nick: "bob")
|
|
|
|
Subscriber.transaction do
|
|
assert_equal subscriber, Subscriber.create_or_find_by(nick: "bob")
|
|
assert_not_equal subscriber, Subscriber.create_or_find_by(nick: "cat")
|
|
end
|
|
end
|
|
|
|
def test_create_or_find_by_with_bang
|
|
assert_nil Subscriber.find_by(nick: "bob")
|
|
|
|
subscriber = Subscriber.create!(nick: "bob")
|
|
|
|
assert_equal subscriber, Subscriber.create_or_find_by!(nick: "bob")
|
|
assert_not_equal subscriber, Subscriber.create_or_find_by!(nick: "cat")
|
|
end
|
|
|
|
def test_create_or_find_by_with_bang_should_raise_due_to_validation_errors
|
|
assert_raises(ActiveRecord::RecordInvalid) { Bird.create_or_find_by!(color: "green") }
|
|
end
|
|
|
|
def test_create_or_find_by_with_bang_with_non_unique_attributes
|
|
Subscriber.create!(nick: "bob", name: "the builder")
|
|
|
|
assert_raises(ActiveRecord::RecordNotFound) do
|
|
Subscriber.create_or_find_by!(nick: "bob", name: "the cat")
|
|
end
|
|
end
|
|
|
|
def test_create_or_find_by_with_bang_within_transaction
|
|
assert_nil Subscriber.find_by(nick: "bob")
|
|
|
|
subscriber = Subscriber.create!(nick: "bob")
|
|
|
|
Subscriber.transaction do
|
|
assert_equal subscriber, Subscriber.create_or_find_by!(nick: "bob")
|
|
assert_not_equal subscriber, Subscriber.create_or_find_by!(nick: "cat")
|
|
end
|
|
end
|
|
|
|
def test_find_or_initialize_by
|
|
assert_nil Bird.find_by(name: "bob")
|
|
|
|
bird = Bird.find_or_initialize_by(name: "bob")
|
|
assert_predicate bird, :new_record?
|
|
bird.save!
|
|
|
|
assert_equal bird, Bird.find_or_initialize_by(name: "bob")
|
|
end
|
|
|
|
def test_explicit_create_with
|
|
hens = Bird.where(name: "hen")
|
|
assert_equal "hen", hens.new.name
|
|
|
|
hens = hens.create_with(name: "cock")
|
|
assert_equal "cock", hens.new.name
|
|
end
|
|
|
|
def test_create_with_nested_attributes
|
|
assert_difference("Project.count", 1) do
|
|
developers = Developer.where(name: "Aaron")
|
|
developers = developers.create_with(
|
|
projects_attributes: [{ name: "p1" }]
|
|
)
|
|
developers.create!
|
|
end
|
|
end
|
|
|
|
def test_except
|
|
relation = Post.where(author_id: 1).order("id ASC").limit(1)
|
|
assert_equal [posts(:welcome)], relation.to_a
|
|
|
|
author_posts = relation.except(:order, :limit)
|
|
assert_equal Post.where(author_id: 1).to_a, author_posts.to_a
|
|
|
|
all_posts = relation.except(:where, :order, :limit)
|
|
assert_equal Post.all, all_posts
|
|
end
|
|
|
|
def test_only
|
|
relation = Post.where(author_id: 1).order("id ASC").limit(1)
|
|
assert_equal [posts(:welcome)], relation.to_a
|
|
|
|
author_posts = relation.only(:where)
|
|
assert_equal Post.where(author_id: 1).to_a, author_posts.to_a
|
|
|
|
all_posts = relation.only(:limit)
|
|
assert_equal Post.limit(1).to_a, all_posts.to_a
|
|
end
|
|
|
|
def test_anonymous_extension
|
|
relation = Post.where(author_id: 1).order("id ASC").extending do
|
|
def author
|
|
"lifo"
|
|
end
|
|
end
|
|
|
|
assert_equal "lifo", relation.author
|
|
assert_equal "lifo", relation.limit(1).author
|
|
end
|
|
|
|
def test_named_extension
|
|
relation = Post.where(author_id: 1).order("id ASC").extending(Post::NamedExtension)
|
|
assert_equal "lifo", relation.author
|
|
assert_equal "lifo", relation.limit(1).author
|
|
end
|
|
|
|
def test_order_by_relation_attribute
|
|
assert_equal Post.order(Post.arel_table[:title]).to_a, Post.order("title").to_a
|
|
end
|
|
|
|
def test_default_scope_order_with_scope_order
|
|
assert_equal "zyke", CoolCar.order_using_new_style.limit(1).first.name
|
|
assert_equal "zyke", FastCar.order_using_new_style.limit(1).first.name
|
|
end
|
|
|
|
def test_order_using_scoping
|
|
car1 = CoolCar.order("id DESC").scoping do
|
|
CoolCar.all.merge!(order: "id asc").first
|
|
end
|
|
assert_equal "zyke", car1.name
|
|
|
|
car2 = FastCar.order("id DESC").scoping do
|
|
FastCar.all.merge!(order: "id asc").first
|
|
end
|
|
assert_equal "zyke", car2.name
|
|
end
|
|
|
|
def test_unscoped_block_style
|
|
assert_equal "honda", CoolCar.unscoped { CoolCar.order_using_new_style.limit(1).first.name }
|
|
assert_equal "honda", FastCar.unscoped { FastCar.order_using_new_style.limit(1).first.name }
|
|
end
|
|
|
|
def test_intersection_with_array
|
|
relation = Author.where(name: "David")
|
|
rails_author = relation.first
|
|
|
|
assert_equal [rails_author], [rails_author] & relation
|
|
assert_equal [rails_author], relation & [rails_author]
|
|
end
|
|
|
|
def test_primary_key
|
|
assert_equal "id", Post.all.primary_key
|
|
end
|
|
|
|
def test_ordering_with_extra_spaces
|
|
assert_equal authors(:david), Author.order("id DESC , name DESC").last
|
|
end
|
|
|
|
def test_distinct
|
|
tag1 = Tag.create(name: "Foo")
|
|
tag2 = Tag.create(name: "Foo")
|
|
|
|
query = Tag.select(:name).where(id: [tag1.id, tag2.id])
|
|
|
|
assert_equal ["Foo", "Foo"], query.map(&:name)
|
|
assert_sql(/DISTINCT/) do
|
|
assert_equal ["Foo"], query.distinct.map(&:name)
|
|
end
|
|
assert_sql(/DISTINCT/) do
|
|
assert_equal ["Foo"], query.distinct(true).map(&:name)
|
|
end
|
|
assert_equal ["Foo", "Foo"], query.distinct(true).distinct(false).map(&:name)
|
|
end
|
|
|
|
def test_doesnt_add_having_values_if_options_are_blank
|
|
scope = Post.having("")
|
|
assert_empty scope.having_clause
|
|
|
|
scope = Post.having([])
|
|
assert_empty scope.having_clause
|
|
end
|
|
|
|
def test_having_with_binds_for_both_where_and_having
|
|
post = Post.first
|
|
having_then_where = Post.having(id: post.id).where(title: post.title).group(:id)
|
|
where_then_having = Post.where(title: post.title).having(id: post.id).group(:id)
|
|
|
|
assert_equal [post], having_then_where
|
|
assert_equal [post], where_then_having
|
|
end
|
|
|
|
def test_multiple_where_and_having_clauses
|
|
post = Post.first
|
|
having_then_where = Post.having(id: post.id).where(title: post.title)
|
|
.having(id: post.id).where(title: post.title).group(:id)
|
|
|
|
assert_equal [post], having_then_where
|
|
end
|
|
|
|
def test_grouping_by_column_with_reserved_name
|
|
assert_equal [], Possession.select(:where).group(:where).to_a
|
|
end
|
|
|
|
def test_references_triggers_eager_loading
|
|
scope = Post.includes(:comments)
|
|
assert_not_predicate scope, :eager_loading?
|
|
assert_predicate scope.references(:comments), :eager_loading?
|
|
end
|
|
|
|
def test_references_doesnt_trigger_eager_loading_if_reference_not_included
|
|
scope = Post.references(:comments)
|
|
assert_not_predicate scope, :eager_loading?
|
|
end
|
|
|
|
def test_automatically_added_where_references
|
|
scope = Post.where(comments: { body: "Bla" })
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.where("comments.body" => "Bla")
|
|
assert_equal ["comments"], scope.references_values
|
|
end
|
|
|
|
def test_automatically_added_where_not_references
|
|
scope = Post.where.not(comments: { body: "Bla" })
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.where.not("comments.body" => "Bla")
|
|
assert_equal ["comments"], scope.references_values
|
|
end
|
|
|
|
def test_automatically_added_having_references
|
|
scope = Post.having(comments: { body: "Bla" })
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.having("comments.body" => "Bla")
|
|
assert_equal ["comments"], scope.references_values
|
|
end
|
|
|
|
def test_automatically_added_order_references
|
|
scope = Post.order("comments.body")
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.order(Arel.sql("#{Comment.quoted_table_name}.#{Comment.quoted_primary_key}"))
|
|
if current_adapter?(:OracleAdapter)
|
|
assert_equal ["COMMENTS"], scope.references_values
|
|
else
|
|
assert_equal ["comments"], scope.references_values
|
|
end
|
|
|
|
scope = Post.order("comments.body", "yaks.body")
|
|
assert_equal ["comments", "yaks"], scope.references_values
|
|
|
|
# Don't infer yaks, let's not go down that road again...
|
|
scope = Post.order("comments.body, yaks.body")
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.order("comments.body asc")
|
|
assert_equal ["comments"], scope.references_values
|
|
|
|
scope = Post.order(Arel.sql("foo(comments.body)"))
|
|
assert_equal [], scope.references_values
|
|
end
|
|
|
|
def test_automatically_added_reorder_references
|
|
scope = Post.reorder("comments.body")
|
|
assert_equal %w(comments), scope.references_values
|
|
|
|
scope = Post.reorder(Arel.sql("#{Comment.quoted_table_name}.#{Comment.quoted_primary_key}"))
|
|
if current_adapter?(:OracleAdapter)
|
|
assert_equal ["COMMENTS"], scope.references_values
|
|
else
|
|
assert_equal ["comments"], scope.references_values
|
|
end
|
|
|
|
scope = Post.reorder("comments.body", "yaks.body")
|
|
assert_equal %w(comments yaks), scope.references_values
|
|
|
|
# Don't infer yaks, let's not go down that road again...
|
|
scope = Post.reorder("comments.body, yaks.body")
|
|
assert_equal %w(comments), scope.references_values
|
|
|
|
scope = Post.reorder("comments.body asc")
|
|
assert_equal %w(comments), scope.references_values
|
|
|
|
scope = Post.reorder(Arel.sql("foo(comments.body)"))
|
|
assert_equal [], scope.references_values
|
|
end
|
|
|
|
def test_order_with_reorder_nil_removes_the_order
|
|
relation = Post.order(:title).reorder(nil)
|
|
|
|
assert_nil relation.order_values.first
|
|
end
|
|
|
|
def test_reverse_order_with_reorder_nil_removes_the_order
|
|
relation = Post.order(:title).reverse_order.reorder(nil)
|
|
|
|
assert_nil relation.order_values.first
|
|
end
|
|
|
|
def test_presence
|
|
topics = Topic.all
|
|
|
|
# the first query is triggered because there are no topics yet.
|
|
assert_queries(1) { assert topics.present? }
|
|
|
|
# checking if there are topics is used before you actually display them,
|
|
# thus it shouldn't invoke an extra count query.
|
|
assert_no_queries { assert topics.present? }
|
|
assert_no_queries { assert_not topics.blank? }
|
|
|
|
# shows count of topics and loops after loading the query should not trigger extra queries either.
|
|
assert_no_queries { topics.size }
|
|
assert_no_queries { topics.length }
|
|
assert_no_queries { topics.each }
|
|
|
|
# count always trigger the COUNT query.
|
|
assert_queries(1) { topics.count }
|
|
|
|
assert_predicate topics, :loaded?
|
|
end
|
|
|
|
test "find_by with hash conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by(author_id: 2)
|
|
end
|
|
|
|
test "find_by with non-hash conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by("author_id = 2")
|
|
end
|
|
|
|
test "find_by with multi-arg conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by("author_id = ?", 2)
|
|
end
|
|
|
|
test "find_by returns nil if the record is missing" do
|
|
assert_nil Post.all.find_by("1 = 0")
|
|
end
|
|
|
|
test "find_by doesn't have implicit ordering" do
|
|
assert_sql(/^((?!ORDER).)*$/) { Post.all.find_by(author_id: 2) }
|
|
end
|
|
|
|
test "find_by requires at least one argument" do
|
|
assert_raises(ArgumentError) { Post.all.find_by }
|
|
end
|
|
|
|
test "find_by! with hash conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by!(author_id: 2)
|
|
end
|
|
|
|
test "find_by! with non-hash conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by!("author_id = 2")
|
|
end
|
|
|
|
test "find_by! with multi-arg conditions returns the first matching record" do
|
|
assert_equal posts(:eager_other), Post.order(:id).find_by!("author_id = ?", 2)
|
|
end
|
|
|
|
test "find_by! doesn't have implicit ordering" do
|
|
assert_sql(/^((?!ORDER).)*$/) { Post.all.find_by!(author_id: 2) }
|
|
end
|
|
|
|
test "find_by! raises RecordNotFound if the record is missing" do
|
|
assert_raises(ActiveRecord::RecordNotFound) do
|
|
Post.all.find_by!("1 = 0")
|
|
end
|
|
end
|
|
|
|
test "find_by! requires at least one argument" do
|
|
assert_raises(ArgumentError) { Post.all.find_by! }
|
|
end
|
|
|
|
test "loaded relations cannot be mutated by multi value methods" do
|
|
relation = Post.all
|
|
relation.to_a
|
|
|
|
assert_raises(ActiveRecord::ImmutableRelation) do
|
|
relation.where! "foo"
|
|
end
|
|
end
|
|
|
|
test "loaded relations cannot be mutated by single value methods" do
|
|
relation = Post.all
|
|
relation.to_a
|
|
|
|
assert_raises(ActiveRecord::ImmutableRelation) do
|
|
relation.limit! 5
|
|
end
|
|
end
|
|
|
|
test "loaded relations cannot be mutated by merge!" do
|
|
relation = Post.all
|
|
relation.to_a
|
|
|
|
assert_raises(ActiveRecord::ImmutableRelation) do
|
|
relation.merge! where: "foo"
|
|
end
|
|
end
|
|
|
|
test "loaded relations cannot be mutated by extending!" do
|
|
relation = Post.all
|
|
relation.to_a
|
|
|
|
assert_raises(ActiveRecord::ImmutableRelation) do
|
|
relation.extending! Module.new
|
|
end
|
|
end
|
|
|
|
test "relations with cached arel can't be mutated [internal API]" do
|
|
relation = Post.all
|
|
relation.arel
|
|
|
|
assert_raises(ActiveRecord::ImmutableRelation) { relation.limit!(5) }
|
|
assert_raises(ActiveRecord::ImmutableRelation) { relation.where!("1 = 2") }
|
|
end
|
|
|
|
test "relations show the records in #inspect" do
|
|
relation = Post.limit(2)
|
|
assert_equal "#<ActiveRecord::Relation [#{Post.limit(2).map(&:inspect).join(', ')}]>", relation.inspect
|
|
end
|
|
|
|
test "relations limit the records in #inspect at 10" do
|
|
relation = Post.limit(11)
|
|
assert_equal "#<ActiveRecord::Relation [#{Post.limit(10).map(&:inspect).join(', ')}, ...]>", relation.inspect
|
|
end
|
|
|
|
test "relations don't load all records in #inspect" do
|
|
assert_sql(/LIMIT|ROWNUM <=|FETCH FIRST/) do
|
|
Post.all.inspect
|
|
end
|
|
end
|
|
|
|
test "already-loaded relations don't perform a new query in #inspect" do
|
|
relation = Post.limit(2)
|
|
relation.to_a
|
|
|
|
expected = "#<ActiveRecord::Relation [#{Post.limit(2).map(&:inspect).join(', ')}]>"
|
|
|
|
assert_no_queries do
|
|
assert_equal expected, relation.inspect
|
|
end
|
|
end
|
|
|
|
test "using a custom table affects the wheres" do
|
|
post = posts(:welcome)
|
|
|
|
assert_equal post, custom_post_relation.where!(title: post.title).take
|
|
end
|
|
|
|
test "using a custom table with joins affects the joins" do
|
|
post = posts(:welcome)
|
|
|
|
assert_equal post, custom_post_relation.joins(:author).where!(title: post.title).take
|
|
end
|
|
|
|
test "arel_attribute respects a custom table" do
|
|
assert_equal [posts(:sti_comments)], custom_post_relation.ranked_by_comments.limit_by(1).to_a
|
|
end
|
|
|
|
test "alias_tracker respects a custom table" do
|
|
assert_equal posts(:welcome), custom_post_relation("categories_posts").joins(:categories).first
|
|
end
|
|
|
|
test "#load" do
|
|
relation = Post.all
|
|
assert_queries(1) do
|
|
assert_equal relation, relation.load
|
|
end
|
|
assert_no_queries { relation.to_a }
|
|
end
|
|
|
|
test "group with select and includes" do
|
|
authors_count = Post.select("author_id, COUNT(author_id) AS num_posts").
|
|
group("author_id").order("author_id").includes(:author).to_a
|
|
|
|
assert_no_queries do
|
|
result = authors_count.map do |post|
|
|
[post.num_posts, post.author.try(:name)]
|
|
end
|
|
|
|
expected = [[1, nil], [5, "David"], [3, "Mary"], [2, "Bob"]]
|
|
assert_equal expected, result
|
|
end
|
|
end
|
|
|
|
test "joins with select" do
|
|
posts = Post.joins(:author).select("id", "authors.author_address_id").order("posts.id").limit(3)
|
|
assert_equal [1, 2, 4], posts.map(&:id)
|
|
assert_equal [1, 1, 1], posts.map(&:author_address_id)
|
|
end
|
|
|
|
test "delegations do not leak to other classes" do
|
|
Topic.all.by_lifo
|
|
assert Topic.all.class.method_defined?(:by_lifo)
|
|
assert_not_respond_to Post.all, :by_lifo
|
|
end
|
|
|
|
def test_unscope_with_subquery
|
|
p1 = Post.where(id: 1)
|
|
p2 = Post.where(id: 2)
|
|
|
|
assert_not_equal p1, p2
|
|
|
|
comments = Comment.where(post: p1).unscope(where: :post_id).where(post: p2)
|
|
|
|
assert_not_equal p1.first.comments, comments
|
|
assert_equal p2.first.comments, comments
|
|
end
|
|
|
|
def test_unscope_specific_where_value
|
|
posts = Post.where(title: "Welcome to the weblog", body: "Such a lovely day")
|
|
|
|
assert_equal 1, posts.count
|
|
assert_equal 1, posts.unscope(where: :title).count
|
|
assert_equal 1, posts.unscope(where: :body).count
|
|
end
|
|
|
|
def test_locked_should_not_build_arel
|
|
posts = Post.locked
|
|
assert_predicate posts, :locked?
|
|
assert_nothing_raised { posts.lock!(false) }
|
|
end
|
|
|
|
def test_relation_join_method
|
|
assert_equal "Thank you for the welcome,Thank you again for the welcome", Post.first.comments.join(",")
|
|
end
|
|
|
|
def test_relation_with_private_kernel_method
|
|
accounts = Account.all
|
|
assert_equal [accounts(:signals37)], accounts.open
|
|
assert_equal [accounts(:signals37)], accounts.available
|
|
|
|
sub_accounts = SubAccount.all
|
|
assert_equal [accounts(:signals37)], sub_accounts.open
|
|
assert_equal [accounts(:signals37)], sub_accounts.available
|
|
end
|
|
|
|
test "#skip_query_cache!" do
|
|
Post.cache do
|
|
assert_queries(1) do
|
|
Post.all.load
|
|
Post.all.load
|
|
end
|
|
|
|
assert_queries(2) do
|
|
Post.all.skip_query_cache!.load
|
|
Post.all.skip_query_cache!.load
|
|
end
|
|
end
|
|
end
|
|
|
|
test "#skip_query_cache! with an eager load" do
|
|
Post.cache do
|
|
assert_queries(1) do
|
|
Post.eager_load(:comments).load
|
|
Post.eager_load(:comments).load
|
|
end
|
|
|
|
assert_queries(2) do
|
|
Post.eager_load(:comments).skip_query_cache!.load
|
|
Post.eager_load(:comments).skip_query_cache!.load
|
|
end
|
|
end
|
|
end
|
|
|
|
test "#skip_query_cache! with a preload" do
|
|
Post.cache do
|
|
assert_queries(2) do
|
|
Post.preload(:comments).load
|
|
Post.preload(:comments).load
|
|
end
|
|
|
|
assert_queries(4) do
|
|
Post.preload(:comments).skip_query_cache!.load
|
|
Post.preload(:comments).skip_query_cache!.load
|
|
end
|
|
end
|
|
end
|
|
|
|
test "#where with set" do
|
|
david = authors(:david)
|
|
mary = authors(:mary)
|
|
|
|
authors = Author.where(name: ["David", "Mary"].to_set)
|
|
assert_equal [david, mary], authors
|
|
end
|
|
|
|
test "#where with empty set" do
|
|
authors = Author.where(name: Set.new)
|
|
assert_empty authors
|
|
end
|
|
|
|
private
|
|
def custom_post_relation(alias_name = "omg_posts")
|
|
table_alias = Post.arel_table.alias(alias_name)
|
|
table_metadata = ActiveRecord::TableMetadata.new(Post, table_alias)
|
|
predicate_builder = ActiveRecord::PredicateBuilder.new(table_metadata)
|
|
|
|
ActiveRecord::Relation.create(
|
|
Post,
|
|
table: table_alias,
|
|
predicate_builder: predicate_builder
|
|
)
|
|
end
|
|
end
|