require "cases/helper" require 'models/post' require 'models/author' require 'models/categorization' require 'models/comment' require 'models/company' require 'models/tagging' require 'models/topic' require 'models/reply' require 'models/entrant' require 'models/project' require 'models/developer' require 'models/computer' require 'models/customer' require 'models/toy' require 'models/matey' require 'models/dog' require 'models/car' require 'models/tyre' class FinderTest < ActiveRecord::TestCase fixtures :companies, :topics, :entrants, :developers, :developers_projects, :posts, :comments, :accounts, :authors, :customers, :categories, :categorizations, :cars def test_find_by_id_with_hash assert_raises(ActiveRecord::StatementInvalid) do Post.find_by_id(:limit => 1) end end def test_find_by_title_and_id_with_hash assert_raises(ActiveRecord::StatementInvalid) do Post.find_by_title_and_id('foo', :limit => 1) end end def test_find assert_equal(topics(:first).title, Topic.find(1).title) end def test_find_with_proc_parameter_and_block exception = assert_raises(RuntimeError) do Topic.all.find(-> { raise "should happen" }) { |e| e.title == "non-existing-title" } end assert_equal "should happen", exception.message assert_nothing_raised(RuntimeError) do Topic.all.find(-> { raise "should not happen" }) { |e| e.title == topics(:first).title } end end def test_find_passing_active_record_object_is_deprecated assert_deprecated do Topic.find(Topic.last) end end def test_symbols_table_ref gc_disabled = GC.disable Post.where("author_id" => nil) # warm up x = Symbol.all_symbols.count Post.where("title" => {"xxxqqqq" => "bar"}) assert_equal x, Symbol.all_symbols.count ensure GC.enable if gc_disabled == false end # find should handle strings that come from URLs # (example: Category.find(params[:id])) def test_find_with_string assert_equal(Topic.find(1).title,Topic.find("1").title) end def test_exists assert_equal true, Topic.exists?(1) assert_equal true, Topic.exists?("1") assert_equal true, Topic.exists?(title: "The First Topic") assert_equal true, Topic.exists?(heading: "The First Topic") assert_equal true, Topic.exists?(:author_name => "Mary", :approved => true) assert_equal true, Topic.exists?(["parent_id = ?", 1]) assert_equal true, Topic.exists?(id: [1, 9999]) assert_equal false, Topic.exists?(45) assert_equal false, Topic.exists?(Topic.new.id) assert_raise(NoMethodError) { Topic.exists?([1,2]) } end def test_exists_with_polymorphic_relation post = Post.create!(title: 'Post', body: 'default', taggings: [Tagging.new(comment: 'tagging comment')]) relation = Post.tagged_with_comment('tagging comment') assert_equal true, relation.exists?(title: ['Post']) assert_equal true, relation.exists?(['title LIKE ?', 'Post%']) assert_equal true, relation.exists? assert_equal true, relation.exists?(post.id) assert_equal true, relation.exists?(post.id.to_s) assert_equal false, relation.exists?(false) end def test_exists_passing_active_record_object_is_deprecated assert_deprecated do Topic.exists?(Topic.new) end end def test_exists_fails_when_parameter_has_invalid_type assert_raises(RangeError) do assert_equal false, Topic.exists?(("9"*53).to_i) # number that's bigger than int end assert_equal false, Topic.exists?("foo") end def test_exists_does_not_select_columns_without_alias assert_sql(/SELECT\W+1 AS one FROM ["`]topics["`]/i) do Topic.exists? end end def test_exists_returns_true_with_one_record_and_no_args assert_equal true, Topic.exists? end def test_exists_returns_false_with_false_arg assert_equal false, Topic.exists?(false) end # exists? should handle nil for id's that come from URLs and always return false # (example: Topic.exists?(params[:id])) where params[:id] is nil def test_exists_with_nil_arg assert_equal false, Topic.exists?(nil) assert_equal true, Topic.exists? assert_equal false, Topic.first.replies.exists?(nil) assert_equal true, Topic.first.replies.exists? end # ensures +exists?+ runs valid SQL by excluding order value def test_exists_with_order assert_equal true, Topic.order(:id).distinct.exists? end def test_exists_with_includes_limit_and_empty_result assert_equal false, Topic.includes(:replies).limit(0).exists? assert_equal false, Topic.includes(:replies).limit(1).where('0 = 1').exists? end def test_exists_with_distinct_association_includes_and_limit author = Author.first assert_equal false, author.unique_categorized_posts.includes(:special_comments).limit(0).exists? assert_equal true, author.unique_categorized_posts.includes(:special_comments).limit(1).exists? end def test_exists_with_distinct_association_includes_limit_and_order author = Author.first assert_equal false, author.unique_categorized_posts.includes(:special_comments).order('comments.tags_count DESC').limit(0).exists? assert_equal true, author.unique_categorized_posts.includes(:special_comments).order('comments.tags_count DESC').limit(1).exists? end def test_exists_with_empty_table_and_no_args_given Topic.delete_all assert_equal false, Topic.exists? end def test_exists_with_aggregate_having_three_mappings existing_address = customers(:david).address assert_equal true, Customer.exists?(:address => existing_address) end def test_exists_with_aggregate_having_three_mappings_with_one_difference existing_address = customers(:david).address assert_equal false, Customer.exists?(:address => Address.new(existing_address.street, existing_address.city, existing_address.country + "1")) assert_equal false, Customer.exists?(:address => Address.new(existing_address.street, existing_address.city + "1", existing_address.country)) assert_equal false, Customer.exists?(:address => Address.new(existing_address.street + "1", existing_address.city, existing_address.country)) end def test_exists_does_not_instantiate_records assert_not_called(Developer, :instantiate) do Developer.exists? end end def test_find_by_array_of_one_id assert_kind_of(Array, Topic.find([ 1 ])) assert_equal(1, Topic.find([ 1 ]).length) end def test_find_by_ids assert_equal 2, Topic.find(1, 2).size assert_equal topics(:second).title, Topic.find([2]).first.title end def test_find_by_ids_with_limit_and_offset assert_equal 2, Entrant.limit(2).find([1,3,2]).size assert_equal 1, Entrant.limit(3).offset(2).find([1,3,2]).size # Also test an edge case: If you have 11 results, and you set a # limit of 3 and offset of 9, then you should find that there # will be only 2 results, regardless of the limit. devs = Developer.all last_devs = Developer.limit(3).offset(9).find devs.map(&:id) assert_equal 2, last_devs.size end def test_find_with_large_number assert_raises(ActiveRecord::RecordNotFound) { Topic.find('9999999999999999999999999999999') } end def test_find_by_with_large_number assert_nil Topic.find_by(id: '9999999999999999999999999999999') end def test_find_by_id_with_large_number assert_nil Topic.find_by_id('9999999999999999999999999999999') end def test_find_on_relation_with_large_number assert_nil Topic.where('1=1').find_by(id: 9999999999999999999999999999999) end def test_find_by_bang_on_relation_with_large_number assert_raises(ActiveRecord::RecordNotFound) do Topic.where('1=1').find_by!(id: 9999999999999999999999999999999) end end def test_find_an_empty_array assert_equal [], Topic.find([]) end def test_find_doesnt_have_implicit_ordering assert_sql(/^((?!ORDER).)*$/) { Topic.find(1) } end def test_find_by_ids_missing_one assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1, 2, 45) } end def test_find_with_group_and_sanitized_having_method developers = Developer.group(:salary).having("sum(salary) > ?", 10000).select('salary').to_a assert_equal 3, developers.size assert_equal 3, developers.map(&:salary).uniq.size assert developers.all? { |developer| developer.salary > 10000 } end def test_find_with_entire_select_statement topics = Topic.find_by_sql "SELECT * FROM topics WHERE author_name = 'Mary'" assert_equal(1, topics.size) assert_equal(topics(:second).title, topics.first.title) end def test_find_with_prepared_select_statement topics = Topic.find_by_sql ["SELECT * FROM topics WHERE author_name = ?", "Mary"] assert_equal(1, topics.size) assert_equal(topics(:second).title, topics.first.title) end def test_find_by_sql_with_sti_on_joined_table accounts = Account.find_by_sql("SELECT * FROM accounts INNER JOIN companies ON companies.id = accounts.firm_id") assert_equal [Account], accounts.collect(&:class).uniq end def test_find_by_association_subquery author = authors(:david) assert_equal author.post, Post.find_by(author: Author.where(id: author)) assert_equal author.post, Post.find_by(author_id: Author.where(id: author)) end def test_take assert_equal topics(:first), Topic.take end def test_take_failing assert_nil Topic.where("title = 'This title does not exist'").take end def test_take_bang_present assert_nothing_raised do assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").take! end end def test_take_bang_missing assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.where("title = 'This title does not exist'").take! end end def test_first assert_equal topics(:second).title, Topic.where("title = 'The Second Topic of the day'").first.title end def test_first_failing assert_nil Topic.where("title = 'The Second Topic of the day!'").first end def test_first_bang_present assert_nothing_raised do assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").first! end end def test_first_bang_missing assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.where("title = 'This title does not exist'").first! end end def test_first_have_primary_key_order_by_default expected = topics(:first) expected.touch # PostgreSQL changes the default order if no order clause is used assert_equal expected, Topic.first end def test_model_class_responds_to_first_bang assert Topic.first! Topic.delete_all assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.first! end end def test_second assert_equal topics(:second).title, Topic.second.title end def test_second_with_offset assert_equal topics(:fifth), Topic.offset(3).second end def test_second_have_primary_key_order_by_default expected = topics(:second) expected.touch # PostgreSQL changes the default order if no order clause is used assert_equal expected, Topic.second end def test_model_class_responds_to_second_bang assert Topic.second! Topic.delete_all assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.second! end end def test_third assert_equal topics(:third).title, Topic.third.title end def test_third_with_offset assert_equal topics(:fifth), Topic.offset(2).third end def test_third_have_primary_key_order_by_default expected = topics(:third) expected.touch # PostgreSQL changes the default order if no order clause is used assert_equal expected, Topic.third end def test_model_class_responds_to_third_bang assert Topic.third! Topic.delete_all assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.third! end end def test_fourth assert_equal topics(:fourth).title, Topic.fourth.title end def test_fourth_with_offset assert_equal topics(:fifth), Topic.offset(1).fourth end def test_fourth_have_primary_key_order_by_default expected = topics(:fourth) expected.touch # PostgreSQL changes the default order if no order clause is used assert_equal expected, Topic.fourth end def test_model_class_responds_to_fourth_bang assert Topic.fourth! Topic.delete_all assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.fourth! end end def test_fifth assert_equal topics(:fifth).title, Topic.fifth.title end def test_fifth_with_offset assert_equal topics(:fifth), Topic.offset(0).fifth end def test_fifth_have_primary_key_order_by_default expected = topics(:fifth) expected.touch # PostgreSQL changes the default order if no order clause is used assert_equal expected, Topic.fifth end def test_model_class_responds_to_fifth_bang assert Topic.fifth! Topic.delete_all assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.fifth! end end def test_last_bang_present assert_nothing_raised do assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").last! end end def test_last_bang_missing assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.where("title = 'This title does not exist'").last! end end def test_model_class_responds_to_last_bang assert_equal topics(:fifth), Topic.last! assert_raises_with_message ActiveRecord::RecordNotFound, "Couldn't find Topic" do Topic.delete_all Topic.last! end end def test_take_and_first_and_last_with_integer_should_use_sql_limit assert_sql(/LIMIT 3|ROWNUM <= 3/) { Topic.take(3).entries } assert_sql(/LIMIT 2|ROWNUM <= 2/) { Topic.first(2).entries } assert_sql(/LIMIT 5|ROWNUM <= 5/) { Topic.last(5).entries } end def test_last_with_integer_and_order_should_keep_the_order assert_equal Topic.order("title").to_a.last(2), Topic.order("title").last(2) end def test_last_with_integer_and_order_should_not_use_sql_limit query = assert_sql { Topic.order("title").last(5).entries } assert_equal 1, query.length assert_no_match(/LIMIT/, query.first) end def test_last_with_integer_and_reorder_should_not_use_sql_limit query = assert_sql { Topic.reorder("title").last(5).entries } assert_equal 1, query.length assert_no_match(/LIMIT/, query.first) end def test_take_and_first_and_last_with_integer_should_return_an_array assert_kind_of Array, Topic.take(5) assert_kind_of Array, Topic.first(5) assert_kind_of Array, Topic.last(5) end def test_unexisting_record_exception_handling assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1).parent } Topic.find(2).topic end def test_find_only_some_columns topic = Topic.select("author_name").find(1) assert_raise(ActiveModel::MissingAttributeError) {topic.title} assert_raise(ActiveModel::MissingAttributeError) {topic.title?} assert_nil topic.read_attribute("title") assert_equal "David", topic.author_name assert !topic.attribute_present?("title") assert !topic.attribute_present?(:title) assert topic.attribute_present?("author_name") assert_respond_to topic, "author_name" end def test_find_on_array_conditions assert Topic.where(["approved = ?", false]).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where(["approved = ?", true]).find(1) } end def test_find_on_hash_conditions assert Topic.where(approved: false).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where(approved: true).find(1) } end def test_find_on_hash_conditions_with_explicit_table_name assert Topic.where('topics.approved' => false).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where('topics.approved' => true).find(1) } end def test_find_on_hash_conditions_with_hashed_table_name assert Topic.where(topics: { approved: false }).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where(topics: { approved: true }).find(1) } end def test_find_on_combined_explicit_and_hashed_table_names assert Topic.where('topics.approved' => false, topics: { author_name: "David" }).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where('topics.approved' => true, topics: { author_name: "David" }).find(1) } assert_raise(ActiveRecord::RecordNotFound) { Topic.where('topics.approved' => false, topics: { author_name: "Melanie" }).find(1) } end def test_find_with_hash_conditions_on_joined_table firms = Firm.joins(:account).where(:accounts => { :credit_limit => 50 }) assert_equal 1, firms.size assert_equal companies(:first_firm), firms.first end def test_find_with_hash_conditions_on_joined_table_and_with_range firms = DependentFirm.joins(:account).where(name: 'RailsCore', accounts: { credit_limit: 55..60 }) assert_equal 1, firms.size assert_equal companies(:rails_core), firms.first end def test_find_on_hash_conditions_with_explicit_table_name_and_aggregate david = customers(:david) assert Customer.where('customers.name' => david.name, :address => david.address).find(david.id) assert_raise(ActiveRecord::RecordNotFound) { Customer.where('customers.name' => david.name + "1", :address => david.address).find(david.id) } end def test_find_on_association_proxy_conditions assert_equal [1, 2, 3, 5, 6, 7, 8, 9, 10, 12], Comment.where(post_id: authors(:david).posts).map(&:id).sort end def test_find_on_hash_conditions_with_range assert_equal [1,2], Topic.where(id: 1..2).to_a.map(&:id).sort assert_raise(ActiveRecord::RecordNotFound) { Topic.where(id: 2..3).find(1) } end def test_find_on_hash_conditions_with_end_exclusive_range assert_equal [1,2,3], Topic.where(id: 1..3).to_a.map(&:id).sort assert_equal [1,2], Topic.where(id: 1...3).to_a.map(&:id).sort assert_raise(ActiveRecord::RecordNotFound) { Topic.where(id: 2...3).find(3) } end def test_find_on_hash_conditions_with_multiple_ranges assert_equal [1,2,3], Comment.where(id: 1..3, post_id: 1..2).to_a.map(&:id).sort assert_equal [1], Comment.where(id: 1..1, post_id: 1..10).to_a.map(&:id).sort end def test_find_on_hash_conditions_with_array_of_integers_and_ranges assert_equal [1,2,3,5,6,7,8,9], Comment.where(id: [1..2, 3, 5, 6..8, 9]).to_a.map(&:id).sort end def test_find_on_hash_conditions_with_array_of_ranges assert_equal [1,2,6,7,8], Comment.where(id: [1..2, 6..8]).to_a.map(&:id).sort end def test_find_on_multiple_hash_conditions assert Topic.where(author_name: "David", title: "The First Topic", replies_count: 1, approved: false).find(1) assert_raise(ActiveRecord::RecordNotFound) { Topic.where(author_name: "David", title: "The First Topic", replies_count: 1, approved: true).find(1) } assert_raise(ActiveRecord::RecordNotFound) { Topic.where(author_name: "David", title: "HHC", replies_count: 1, approved: false).find(1) } assert_raise(ActiveRecord::RecordNotFound) { Topic.where(author_name: "David", title: "The First Topic", replies_count: 1, approved: true).find(1) } end def test_condition_interpolation assert_kind_of Firm, Company.where("name = '%s'", "37signals").first assert_nil Company.where(["name = '%s'", "37signals!"]).first assert_nil Company.where(["name = '%s'", "37signals!' OR 1=1"]).first assert_kind_of Time, Topic.where(["id = %d", 1]).first.written_on end def test_condition_array_interpolation assert_kind_of Firm, Company.where(["name = '%s'", "37signals"]).first assert_nil Company.where(["name = '%s'", "37signals!"]).first assert_nil Company.where(["name = '%s'", "37signals!' OR 1=1"]).first assert_kind_of Time, Topic.where(["id = %d", 1]).first.written_on end def test_condition_hash_interpolation assert_kind_of Firm, Company.where(name: "37signals").first assert_nil Company.where(name: "37signals!").first assert_kind_of Time, Topic.where(id: 1).first.written_on end def test_hash_condition_find_malformed assert_raise(ActiveRecord::StatementInvalid) { Company.where(id: 2, dhh: true).first } end def test_hash_condition_find_with_escaped_characters Company.create("name" => "Ain't noth'n like' \#stuff") assert Company.where(name: "Ain't noth'n like' \#stuff").first end def test_hash_condition_find_with_array p1, p2 = Post.limit(2).order('id asc').to_a assert_equal [p1, p2], Post.where(id: [p1, p2]).order('id asc').to_a assert_equal [p1, p2], Post.where(id: [p1, p2.id]).order('id asc').to_a end def test_hash_condition_find_with_nil topic = Topic.where(last_read: nil).first assert_not_nil topic assert_nil topic.last_read end def test_hash_condition_find_with_aggregate_having_one_mapping balance = customers(:david).balance assert_kind_of Money, balance found_customer = Customer.where(:balance => balance).first assert_equal customers(:david), found_customer end def test_hash_condition_find_with_aggregate_attribute_having_same_name_as_field_and_key_value_being_aggregate gps_location = customers(:david).gps_location assert_kind_of GpsLocation, gps_location found_customer = Customer.where(:gps_location => gps_location).first assert_equal customers(:david), found_customer end def test_hash_condition_find_with_aggregate_having_one_mapping_and_key_value_being_attribute_value balance = customers(:david).balance assert_kind_of Money, balance found_customer = Customer.where(:balance => balance.amount).first assert_equal customers(:david), found_customer end def test_hash_condition_find_with_aggregate_attribute_having_same_name_as_field_and_key_value_being_attribute_value gps_location = customers(:david).gps_location assert_kind_of GpsLocation, gps_location found_customer = Customer.where(:gps_location => gps_location.gps_location).first assert_equal customers(:david), found_customer end def test_hash_condition_find_with_aggregate_having_three_mappings address = customers(:david).address assert_kind_of Address, address found_customer = Customer.where(:address => address).first assert_equal customers(:david), found_customer end def test_hash_condition_find_with_one_condition_being_aggregate_and_another_not address = customers(:david).address assert_kind_of Address, address found_customer = Customer.where(:address => address, :name => customers(:david).name).first assert_equal customers(:david), found_customer end def test_condition_utc_time_interpolation_with_default_timezone_local with_env_tz 'America/New_York' do with_timezone_config default: :local do topic = Topic.first assert_equal topic, Topic.where(['written_on = ?', topic.written_on.getutc]).first end end end def test_hash_condition_utc_time_interpolation_with_default_timezone_local with_env_tz 'America/New_York' do with_timezone_config default: :local do topic = Topic.first assert_equal topic, Topic.where(written_on: topic.written_on.getutc).first end end end def test_condition_local_time_interpolation_with_default_timezone_utc with_env_tz 'America/New_York' do with_timezone_config default: :utc do topic = Topic.first assert_equal topic, Topic.where(['written_on = ?', topic.written_on.getlocal]).first end end end def test_hash_condition_local_time_interpolation_with_default_timezone_utc with_env_tz 'America/New_York' do with_timezone_config default: :utc do topic = Topic.first assert_equal topic, Topic.where(written_on: topic.written_on.getlocal).first end end end def test_bind_variables assert_kind_of Firm, Company.where(["name = ?", "37signals"]).first assert_nil Company.where(["name = ?", "37signals!"]).first assert_nil Company.where(["name = ?", "37signals!' OR 1=1"]).first assert_kind_of Time, Topic.where(["id = ?", 1]).first.written_on assert_raise(ActiveRecord::PreparedStatementInvalid) { Company.where(["id=? AND name = ?", 2]).first } assert_raise(ActiveRecord::PreparedStatementInvalid) { Company.where(["id=?", 2, 3, 4]).first } end def test_bind_variables_with_quotes Company.create("name" => "37signals' go'es agains") assert Company.where(["name = ?", "37signals' go'es agains"]).first end def test_named_bind_variables_with_quotes Company.create("name" => "37signals' go'es agains") assert Company.where(["name = :name", {name: "37signals' go'es agains"}]).first end def test_named_bind_variables assert_kind_of Firm, Company.where(["name = :name", { name: "37signals" }]).first assert_nil Company.where(["name = :name", { name: "37signals!" }]).first assert_nil Company.where(["name = :name", { name: "37signals!' OR 1=1" }]).first assert_kind_of Time, Topic.where(["id = :id", { id: 1 }]).first.written_on end def test_string_sanitation assert_not_equal "'something ' 1=1'", ActiveRecord::Base.sanitize("something ' 1=1") assert_equal "'something; select table'", ActiveRecord::Base.sanitize("something; select table") end def test_count_by_sql assert_equal(0, Entrant.count_by_sql("SELECT COUNT(*) FROM entrants WHERE id > 3")) assert_equal(1, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 2])) assert_equal(2, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 1])) end def test_find_by_one_attribute assert_equal topics(:first), Topic.find_by_title("The First Topic") assert_nil Topic.find_by_title("The First Topic!") end def test_find_by_one_attribute_bang assert_equal topics(:first), Topic.find_by_title!("The First Topic") assert_raises_with_message(ActiveRecord::RecordNotFound, "Couldn't find Topic") do Topic.find_by_title!("The First Topic!") end end def test_find_by_on_attribute_that_is_a_reserved_word dog_alias = 'Dog' dog = Dog.create(alias: dog_alias) assert_equal dog, Dog.find_by_alias(dog_alias) end def test_find_by_one_attribute_that_is_an_alias assert_equal topics(:first), Topic.find_by_heading("The First Topic") assert_nil Topic.find_by_heading("The First Topic!") end def test_find_by_one_attribute_bang_with_blank_defined blank_topic = BlankTopic.create(title: "The Blank One") assert_equal blank_topic, BlankTopic.find_by_title!("The Blank One") end def test_find_by_one_attribute_with_conditions assert_equal accounts(:rails_core_account), Account.where('firm_id = ?', 6).find_by_credit_limit(50) end def test_find_by_one_attribute_that_is_an_aggregate address = customers(:david).address assert_kind_of Address, address found_customer = Customer.find_by_address(address) assert_equal customers(:david), found_customer end def test_find_by_one_attribute_that_is_an_aggregate_with_one_attribute_difference address = customers(:david).address assert_kind_of Address, address missing_address = Address.new(address.street, address.city, address.country + "1") assert_nil Customer.find_by_address(missing_address) missing_address = Address.new(address.street, address.city + "1", address.country) assert_nil Customer.find_by_address(missing_address) missing_address = Address.new(address.street + "1", address.city, address.country) assert_nil Customer.find_by_address(missing_address) end def test_find_by_two_attributes_that_are_both_aggregates balance = customers(:david).balance address = customers(:david).address assert_kind_of Money, balance assert_kind_of Address, address found_customer = Customer.find_by_balance_and_address(balance, address) assert_equal customers(:david), found_customer end def test_find_by_two_attributes_with_one_being_an_aggregate balance = customers(:david).balance assert_kind_of Money, balance found_customer = Customer.find_by_balance_and_name(balance, customers(:david).name) assert_equal customers(:david), found_customer end def test_dynamic_finder_on_one_attribute_with_conditions_returns_same_results_after_caching # ensure this test can run independently of order class << Account; self; end.send(:remove_method, :find_by_credit_limit) if Account.public_methods.include?(:find_by_credit_limit) a = Account.where('firm_id = ?', 6).find_by_credit_limit(50) assert_equal a, Account.where('firm_id = ?', 6).find_by_credit_limit(50) # find_by_credit_limit has been cached end def test_find_by_one_attribute_with_several_options assert_equal accounts(:unknown), Account.order('id DESC').where('id != ?', 3).find_by_credit_limit(50) end def test_find_by_one_missing_attribute assert_raise(NoMethodError) { Topic.find_by_undertitle("The First Topic!") } end def test_find_by_invalid_method_syntax assert_raise(NoMethodError) { Topic.fail_to_find_by_title("The First Topic") } assert_raise(NoMethodError) { Topic.find_by_title?("The First Topic") } assert_raise(NoMethodError) { Topic.fail_to_find_or_create_by_title("Nonexistent Title") } assert_raise(NoMethodError) { Topic.find_or_create_by_title?("Nonexistent Title") } end def test_find_by_two_attributes assert_equal topics(:first), Topic.find_by_title_and_author_name("The First Topic", "David") assert_nil Topic.find_by_title_and_author_name("The First Topic", "Mary") end def test_find_by_two_attributes_but_passing_only_one assert_raise(ArgumentError) { Topic.find_by_title_and_author_name("The First Topic") } end def test_find_last_with_offset devs = Developer.order('id') assert_equal devs[2], Developer.offset(2).first assert_equal devs[-3], Developer.offset(2).last assert_equal devs[-3], Developer.offset(2).last assert_equal devs[-3], Developer.offset(2).order('id DESC').first end def test_find_by_nil_attribute topic = Topic.find_by_last_read nil assert_not_nil topic assert_nil topic.last_read end def test_find_by_nil_and_not_nil_attributes topic = Topic.find_by_last_read_and_author_name nil, "Mary" assert_equal "Mary", topic.author_name end def test_find_with_bad_sql assert_raise(ActiveRecord::StatementInvalid) { Topic.find_by_sql "select 1 from badtable" } end def test_find_all_with_join developers_on_project_one = Developer. joins('LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id'). where('project_id=1').to_a assert_equal 3, developers_on_project_one.length developer_names = developers_on_project_one.map(&:name) assert developer_names.include?('David') assert developer_names.include?('Jamis') end def test_joins_dont_clobber_id first = Firm. joins('INNER JOIN companies clients ON clients.firm_id = companies.id'). where('companies.id = 1').first assert_equal 1, first.id end def test_joins_with_string_array person_with_reader_and_post = Post. joins(["INNER JOIN categorizations ON categorizations.post_id = posts.id", "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'" ]) assert_equal 1, person_with_reader_and_post.size end def test_find_by_id_with_conditions_with_or assert_nothing_raised do Post.where("posts.id <= 3 OR posts.#{QUOTED_TYPE} = 'Post'").find([1,2,3]) end end def test_find_ignores_previously_inserted_record Post.create!(:title => 'test', :body => 'it out') assert_equal [], Post.where(id: nil) end def test_find_by_empty_ids assert_equal [], Post.find([]) end def test_find_by_empty_in_condition assert_equal [], Post.where('id in (?)', []) end def test_find_by_records p1, p2 = Post.limit(2).order('id asc').to_a assert_equal [p1, p2], Post.where(['id in (?)', [p1, p2]]).order('id asc') assert_equal [p1, p2], Post.where(['id in (?)', [p1, p2.id]]).order('id asc') end def test_select_value assert_equal "37signals", Company.connection.select_value("SELECT name FROM companies WHERE id = 1") assert_nil Company.connection.select_value("SELECT name FROM companies WHERE id = -1") # make sure we didn't break count... assert_equal 0, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = 'Halliburton'") assert_equal 1, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = '37signals'") end def test_select_values assert_equal ["1","2","3","4","5","6","7","8","9", "10", "11"], Company.connection.select_values("SELECT id FROM companies ORDER BY id").map!(&:to_s) assert_equal ["37signals","Summit","Microsoft", "Flamboyant Software", "Ex Nihilo", "RailsCore", "Leetsoft", "Jadedpixel", "Odegy", "Ex Nihilo Part Deux", "Apex"], Company.connection.select_values("SELECT name FROM companies ORDER BY id") end def test_select_rows assert_equal( [["1", "1", nil, "37signals"], ["2", "1", "2", "Summit"], ["3", "1", "1", "Microsoft"]], Company.connection.select_rows("SELECT id, firm_id, client_of, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}}) assert_equal [["1", "37signals"], ["2", "Summit"], ["3", "Microsoft"]], Company.connection.select_rows("SELECT id, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}} end def test_find_with_order_on_included_associations_with_construct_finder_sql_for_association_limiting_and_is_distinct assert_equal 2, Post.includes(authors: :author_address).order('author_addresses.id DESC ').limit(2).to_a.size assert_equal 3, Post.includes(author: :author_address, authors: :author_address). order('author_addresses_authors.id DESC ').limit(3).to_a.size end def test_find_with_nil_inside_set_passed_for_one_attribute client_of = Company. where(client_of: [2, 1, nil], name: ['37signals', 'Summit', 'Microsoft']). order('client_of DESC'). map(&:client_of) assert client_of.include?(nil) assert_equal [2, 1].sort, client_of.compact.sort end def test_find_with_nil_inside_set_passed_for_attribute client_of = Company. where(client_of: [nil]). order('client_of DESC'). map(&:client_of) assert_equal [], client_of.compact end def test_with_limiting_with_custom_select posts = Post.references(:authors).merge( :includes => :author, :select => 'posts.*, authors.id as "author_id"', :limit => 3, :order => 'posts.id' ).to_a assert_equal 3, posts.size assert_equal [0, 1, 1], posts.map(&:author_id).sort end def test_find_one_message_with_custom_primary_key table_with_custom_primary_key do |model| model.primary_key = :name e = assert_raises(ActiveRecord::RecordNotFound) do model.find 'Hello World!' end assert_equal %Q{Couldn't find MercedesCar with 'name'=Hello World!}, e.message end end def test_find_some_message_with_custom_primary_key table_with_custom_primary_key do |model| model.primary_key = :name e = assert_raises(ActiveRecord::RecordNotFound) do model.find 'Hello', 'World!' end assert_equal %Q{Couldn't find all MercedesCars with 'name': (Hello, World!) (found 0 results, but was looking for 2)}, e.message end end def test_find_without_primary_key assert_raises(ActiveRecord::UnknownPrimaryKey) do Matey.find(1) end end def test_finder_with_offset_string assert_nothing_raised(ActiveRecord::StatementInvalid) { Topic.offset("3").to_a } end test "find_by with hash conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by(id: posts(:eager_other).id) end test "find_by with non-hash conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by("id = #{posts(:eager_other).id}") end test "find_by with multi-arg conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by('id = ?', posts(:eager_other).id) end test "find_by returns nil if the record is missing" do assert_equal nil, Post.find_by("1 = 0") end test "find_by with associations" do assert_equal authors(:david), Post.find_by(author: authors(:david)).author assert_equal authors(:mary) , Post.find_by(author: authors(:mary) ).author end test "find_by doesn't have implicit ordering" do assert_sql(/^((?!ORDER).)*$/) { Post.find_by(id: posts(:eager_other).id) } end test "find_by! with hash conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by!(id: posts(:eager_other).id) end test "find_by! with non-hash conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by!("id = #{posts(:eager_other).id}") end test "find_by! with multi-arg conditions returns the first matching record" do assert_equal posts(:eager_other), Post.find_by!('id = ?', posts(:eager_other).id) end test "find_by! doesn't have implicit ordering" do assert_sql(/^((?!ORDER).)*$/) { Post.find_by!(id: posts(:eager_other).id) } end test "find_by! raises RecordNotFound if the record is missing" do assert_raises(ActiveRecord::RecordNotFound) do Post.find_by!("1 = 0") end end test "find on a scope does not perform statement caching" do honda = cars(:honda) zyke = cars(:zyke) tyre = honda.tyres.create! tyre2 = zyke.tyres.create! assert_equal tyre, honda.tyres.custom_find(tyre.id) assert_equal tyre2, zyke.tyres.custom_find(tyre2.id) end test "find_by on a scope does not perform statement caching" do honda = cars(:honda) zyke = cars(:zyke) tyre = honda.tyres.create! tyre2 = zyke.tyres.create! assert_equal tyre, honda.tyres.custom_find_by(id: tyre.id) assert_equal tyre2, zyke.tyres.custom_find_by(id: tyre2.id) end protected def table_with_custom_primary_key yield(Class.new(Toy) do def self.name 'MercedesCar' end end) end def assert_raises_with_message(exception_class, message, &block) err = assert_raises(exception_class) { block.call } assert_match message, err.message end end