/activerecord/test/cases/calculations_test.rb
Ruby | 1199 lines | 954 code | 230 blank | 15 comment | 8 complexity | cc12e7a923e1d1a36a1eacfb30c35f08 MD5 | raw file
- # frozen_string_literal: true
- require "cases/helper"
- require "models/book"
- require "models/club"
- require "models/company"
- require "models/contract"
- require "models/edge"
- require "models/organization"
- require "models/possession"
- require "models/topic"
- require "models/reply"
- require "models/numeric_data"
- require "models/minivan"
- require "models/speedometer"
- require "models/ship_part"
- require "models/treasure"
- require "models/developer"
- require "models/post"
- require "models/comment"
- require "models/rating"
- require "support/stubs/strong_parameters"
- class CalculationsTest < ActiveRecord::TestCase
- fixtures :companies, :accounts, :topics, :speedometers, :minivans, :books, :posts, :comments
- def test_should_sum_field
- assert_equal 318, Account.sum(:credit_limit)
- end
- def test_should_sum_arel_attribute
- assert_equal 318, Account.sum(Account.arel_table[:credit_limit])
- end
- def test_should_average_field
- value = Account.average(:credit_limit)
- assert_equal 53.0, value
- end
- def test_should_average_arel_attribute
- value = Account.average(Account.arel_table[:credit_limit])
- assert_equal 53.0, value
- end
- def test_should_resolve_aliased_attributes
- assert_equal 318, Account.sum(:available_credit)
- end
- def test_should_return_decimal_average_of_integer_field
- value = Account.average(:id)
- assert_equal 3.5, value
- end
- def test_should_return_integer_average_if_db_returns_such
- ShipPart.delete_all
- ShipPart.create!(id: 3, name: "foo")
- value = ShipPart.average(:id)
- assert_equal 3, value
- end
- def test_should_return_nil_as_average
- assert_nil NumericData.average(:bank_balance)
- end
- def test_should_get_maximum_of_field
- assert_equal 60, Account.maximum(:credit_limit)
- end
- def test_should_get_maximum_of_arel_attribute
- assert_equal 60, Account.maximum(Account.arel_table[:credit_limit])
- end
- def test_should_get_maximum_of_field_with_include
- assert_equal 55, Account.where("companies.name != 'Summit'").references(:companies).includes(:firm).maximum(:credit_limit)
- end
- def test_should_get_maximum_of_arel_attribute_with_include
- assert_equal 55, Account.where("companies.name != 'Summit'").references(:companies).includes(:firm).maximum(Account.arel_table[:credit_limit])
- end
- def test_should_get_minimum_of_field
- assert_equal 50, Account.minimum(:credit_limit)
- end
- def test_should_get_minimum_of_arel_attribute
- assert_equal 50, Account.minimum(Account.arel_table[:credit_limit])
- end
- def test_should_group_by_field
- c = Account.group(:firm_id).sum(:credit_limit)
- [1, 6, 2].each do |firm_id|
- assert_includes c.keys, firm_id, "Group #{c.inspect} does not contain firm_id #{firm_id}"
- end
- end
- def test_should_group_by_arel_attribute
- c = Account.group(Account.arel_table[:firm_id]).sum(:credit_limit)
- [1, 6, 2].each do |firm_id|
- assert_includes c.keys, firm_id, "Group #{c.inspect} does not contain firm_id #{firm_id}"
- end
- end
- def test_should_group_by_multiple_fields
- c = Account.group("firm_id", :credit_limit).count(:all)
- [ [nil, 50], [1, 50], [6, 50], [6, 55], [9, 53], [2, 60] ].each { |firm_and_limit| assert_includes c.keys, firm_and_limit }
- end
- def test_should_group_by_multiple_fields_having_functions
- c = Topic.group(:author_name, "COALESCE(type, title)").count(:all)
- assert_equal 1, c[["Carl", "The Third Topic of the day"]]
- assert_equal 1, c[["Mary", "Reply"]]
- assert_equal 1, c[["David", "The First Topic"]]
- assert_equal 1, c[["Carl", "Reply"]]
- end
- def test_should_group_by_summed_field
- expected = { nil => 50, 1 => 50, 2 => 60, 6 => 105, 9 => 53 }
- assert_equal expected, Account.group(:firm_id).sum(:credit_limit)
- end
- def test_group_by_multiple_same_field
- accounts = Account.group(:firm_id)
- expected = {
- nil => 50,
- 1 => 50,
- 2 => 60,
- 6 => 105,
- 9 => 53
- }
- assert_equal expected, accounts.sum(:credit_limit)
- expected = {
- [nil, nil] => 50,
- [1, 1] => 50,
- [2, 2] => 60,
- [6, 6] => 55,
- [9, 9] => 53
- }
- assert_equal expected, accounts.merge!(accounts).maximum(:credit_limit)
- expected = {
- [nil, nil, nil, nil] => 50,
- [1, 1, 1, 1] => 50,
- [2, 2, 2, 2] => 60,
- [6, 6, 6, 6] => 50,
- [9, 9, 9, 9] => 53
- }
- assert_equal expected, accounts.merge!(accounts).minimum(:credit_limit)
- end
- def test_should_generate_valid_sql_with_joins_and_group
- assert_nothing_raised do
- AuditLog.joins(:developer).group(:id).count
- end
- end
- def test_should_calculate_against_given_relation
- developer = Developer.create!(name: "developer")
- developer.audit_logs.create!(message: "first log")
- developer.audit_logs.create!(message: "second log")
- c = developer.audit_logs.joins(:developer).group(:id).count
- assert_equal developer.audit_logs.count, c.size
- developer.audit_logs.each do |log|
- assert_equal 1, c[log.id]
- end
- end
- def test_should_not_use_alias_for_grouped_field
- assert_sql(/GROUP BY #{Regexp.escape(Account.connection.quote_table_name("accounts.firm_id"))}/i) do
- c = Account.group(:firm_id).order("accounts_firm_id").sum(:credit_limit)
- assert_equal [1, 2, 6, 9], c.keys.compact
- end
- end
- def test_should_order_by_grouped_field
- c = Account.group(:firm_id).order("firm_id").sum(:credit_limit)
- assert_equal [1, 2, 6, 9], c.keys.compact
- end
- def test_should_order_by_calculation
- c = Account.group(:firm_id).order("sum_credit_limit desc, firm_id").sum(:credit_limit)
- assert_equal [105, 60, 53, 50, 50], c.keys.collect { |k| c[k] }
- assert_equal [6, 2, 9, 1], c.keys.compact
- end
- def test_should_limit_calculation
- c = Account.where("firm_id IS NOT NULL").group(:firm_id).order("firm_id").limit(2).sum(:credit_limit)
- assert_equal [1, 2], c.keys.compact
- end
- def test_should_limit_calculation_with_offset
- c = Account.where("firm_id IS NOT NULL").group(:firm_id).order("firm_id").
- limit(2).offset(1).sum(:credit_limit)
- assert_equal [2, 6], c.keys.compact
- end
- def test_limit_should_apply_before_count
- accounts = Account.order(:id).limit(4)
- assert_equal 3, accounts.count(:firm_id)
- assert_equal 3, accounts.select(:firm_id).count
- end
- def test_limit_should_apply_before_count_arel_attribute
- accounts = Account.order(:id).limit(4)
- firm_id_attribute = Account.arel_table[:firm_id]
- assert_equal 3, accounts.count(firm_id_attribute)
- assert_equal 3, accounts.select(firm_id_attribute).count
- end
- def test_count_should_shortcut_with_limit_zero
- accounts = Account.limit(0)
- assert_no_queries { assert_equal 0, accounts.count }
- end
- def test_limit_is_kept
- return if current_adapter?(:OracleAdapter)
- queries = capture_sql { Account.limit(1).count }
- assert_equal 1, queries.length
- assert_match(/LIMIT/, queries.first)
- end
- def test_offset_is_kept
- return if current_adapter?(:OracleAdapter)
- queries = capture_sql { Account.offset(1).count }
- assert_equal 1, queries.length
- assert_match(/OFFSET/, queries.first)
- end
- def test_limit_with_offset_is_kept
- return if current_adapter?(:OracleAdapter)
- queries = capture_sql { Account.limit(1).offset(1).count }
- assert_equal 1, queries.length
- assert_match(/LIMIT/, queries.first)
- assert_match(/OFFSET/, queries.first)
- end
- def test_no_limit_no_offset
- queries = capture_sql { Account.count }
- assert_equal 1, queries.length
- assert_no_match(/LIMIT/, queries.first)
- assert_no_match(/OFFSET/, queries.first)
- end
- def test_count_on_invalid_columns_raises
- e = assert_raises(ActiveRecord::StatementInvalid) {
- Account.select("credit_limit, firm_name").count
- }
- assert_match %r{accounts}i, e.sql
- assert_match "credit_limit, firm_name", e.sql
- end
- def test_apply_distinct_in_count
- queries = capture_sql do
- Account.distinct.count
- Account.group(:firm_id).distinct.count
- end
- queries.each do |query|
- assert_match %r{\ASELECT(?! DISTINCT) COUNT\(DISTINCT\b}, query
- end
- end
- def test_count_with_eager_loading_and_custom_order
- posts = Post.includes(:comments).order("comments.id")
- assert_queries(1) { assert_equal 11, posts.count }
- assert_queries(1) { assert_equal 11, posts.count(:all) }
- end
- def test_count_with_eager_loading_and_custom_select_and_order
- posts = Post.includes(:comments).order("comments.id").select(:type)
- assert_queries(1) { assert_equal 11, posts.count }
- assert_queries(1) { assert_equal 11, posts.count(:all) }
- end
- def test_count_with_eager_loading_and_custom_order_and_distinct
- posts = Post.includes(:comments).order("comments.id").distinct
- assert_queries(1) { assert_equal 11, posts.count }
- assert_queries(1) { assert_equal 11, posts.count(:all) }
- end
- def test_distinct_count_all_with_custom_select_and_order
- accounts = Account.distinct.select("credit_limit % 10").order(Arel.sql("credit_limit % 10"))
- assert_queries(1) { assert_equal 3, accounts.count(:all) }
- assert_queries(1) { assert_equal 3, accounts.load.size }
- end
- def test_distinct_count_with_order_and_limit
- assert_equal 4, Account.distinct.order(:firm_id).limit(4).count
- end
- def test_distinct_count_with_order_and_offset
- assert_equal 4, Account.distinct.order(:firm_id).offset(2).count
- end
- def test_distinct_count_with_order_and_limit_and_offset
- assert_equal 4, Account.distinct.order(:firm_id).limit(4).offset(2).count
- end
- def test_distinct_joins_count_with_order_and_limit
- assert_equal 3, Account.joins(:firm).distinct.order(:firm_id).limit(3).count
- end
- def test_distinct_joins_count_with_order_and_offset
- assert_equal 3, Account.joins(:firm).distinct.order(:firm_id).offset(2).count
- end
- def test_distinct_joins_count_with_order_and_limit_and_offset
- assert_equal 3, Account.joins(:firm).distinct.order(:firm_id).limit(3).offset(2).count
- end
- def test_distinct_joins_count_with_group_by
- expected = { nil => 4, 1 => 1, 2 => 1, 4 => 1, 5 => 1, 7 => 1 }
- assert_equal expected, Post.left_joins(:comments).group(:post_id).distinct.count(:author_id)
- assert_equal expected, Post.left_joins(:comments).group(:post_id).distinct.select(:author_id).count
- assert_equal expected, Post.left_joins(:comments).group(:post_id).count("DISTINCT posts.author_id")
- assert_equal expected, Post.left_joins(:comments).group(:post_id).select("DISTINCT posts.author_id").count
- expected = { nil => 6, 1 => 1, 2 => 1, 4 => 1, 5 => 1, 7 => 1 }
- assert_equal expected, Post.left_joins(:comments).group(:post_id).distinct.count(:all)
- assert_equal expected, Post.left_joins(:comments).group(:post_id).distinct.select(:author_id).count(:all)
- end
- def test_distinct_count_with_group_by_and_order_and_limit
- assert_equal({ 6 => 2 }, Account.group(:firm_id).distinct.order("1 DESC").limit(1).count)
- end
- def test_should_group_by_summed_field_having_condition
- c = Account.group(:firm_id).having("sum(credit_limit) > 50").sum(:credit_limit)
- assert_nil c[1]
- assert_equal 105, c[6]
- assert_equal 60, c[2]
- end
- def test_should_group_by_summed_field_having_condition_from_select
- skip unless current_adapter?(:Mysql2Adapter, :SQLite3Adapter)
- c = Account.select("MIN(credit_limit) AS min_credit_limit").group(:firm_id).having("min_credit_limit > 50").sum(:credit_limit)
- assert_nil c[1]
- assert_equal 60, c[2]
- assert_equal 53, c[9]
- end
- def test_should_group_by_summed_association
- c = Account.group(:firm).sum(:credit_limit)
- assert_equal 50, c[companies(:first_firm)]
- assert_equal 105, c[companies(:rails_core)]
- assert_equal 60, c[companies(:first_client)]
- end
- def test_should_sum_field_with_conditions
- assert_equal 105, Account.where("firm_id = 6").sum(:credit_limit)
- end
- def test_should_return_zero_if_sum_conditions_return_nothing
- assert_equal 0, Account.where("1 = 2").sum(:credit_limit)
- assert_equal 0, companies(:rails_core).companies.where("1 = 2").sum(:id)
- end
- def test_sum_should_return_valid_values_for_decimals
- NumericData.create(bank_balance: 19.83)
- assert_equal 19.83, NumericData.sum(:bank_balance)
- end
- def test_should_return_type_casted_values_with_group_and_expression
- assert_equal 0.5, Account.group(:firm_name).sum("0.01 * credit_limit")["37signals"]
- end
- def test_should_group_by_summed_field_with_conditions
- c = Account.where("firm_id > 1").group(:firm_id).sum(:credit_limit)
- assert_nil c[1]
- assert_equal 105, c[6]
- assert_equal 60, c[2]
- end
- def test_should_group_by_summed_field_with_conditions_and_having
- c = Account.where("firm_id > 1").group(:firm_id).
- having("sum(credit_limit) > 60").sum(:credit_limit)
- assert_nil c[1]
- assert_equal 105, c[6]
- assert_nil c[2]
- end
- def test_should_group_by_fields_with_table_alias
- c = Account.group("accounts.firm_id").sum(:credit_limit)
- assert_equal 50, c[1]
- assert_equal 105, c[6]
- assert_equal 60, c[2]
- end
- def test_should_calculate_grouped_with_longer_field
- field = "a" * Account.connection.max_identifier_length
- Account.update_all("#{field} = credit_limit")
- c = Account.group(:firm_id).sum(field)
- assert_equal 50, c[1]
- assert_equal 105, c[6]
- assert_equal 60, c[2]
- end
- def test_should_calculate_with_invalid_field
- assert_equal 6, Account.calculate(:count, "*")
- assert_equal 6, Account.calculate(:count, :all)
- end
- def test_should_calculate_grouped_with_invalid_field
- c = Account.group("accounts.firm_id").count(:all)
- assert_equal 1, c[1]
- assert_equal 2, c[6]
- assert_equal 1, c[2]
- end
- def test_should_calculate_grouped_association_with_invalid_field
- c = Account.group(:firm).count(:all)
- assert_equal 1, c[companies(:first_firm)]
- assert_equal 2, c[companies(:rails_core)]
- assert_equal 1, c[companies(:first_client)]
- end
- def test_should_group_by_association_with_non_numeric_foreign_key
- Speedometer.create! id: "ABC"
- Minivan.create! id: "OMG", speedometer_id: "ABC"
- c = Minivan.group(:speedometer).count(:all)
- first_key = c.keys.first
- assert_equal Speedometer, first_key.class
- assert_equal 1, c[first_key]
- end
- def test_should_calculate_grouped_association_with_foreign_key_option
- Account.belongs_to :another_firm, class_name: "Firm", foreign_key: "firm_id"
- c = Account.group(:another_firm).count(:all)
- assert_equal 1, c[companies(:first_firm)]
- assert_equal 2, c[companies(:rails_core)]
- assert_equal 1, c[companies(:first_client)]
- end
- def test_should_calculate_grouped_by_function
- c = Company.group("UPPER(#{QUOTED_TYPE})").count(:all)
- assert_equal 2, c[nil]
- assert_equal 1, c["DEPENDENTFIRM"]
- assert_equal 5, c["CLIENT"]
- assert_equal 2, c["FIRM"]
- end
- def test_should_calculate_grouped_by_function_with_table_alias
- c = Company.group("UPPER(companies.#{QUOTED_TYPE})").count(:all)
- assert_equal 2, c[nil]
- assert_equal 1, c["DEPENDENTFIRM"]
- assert_equal 5, c["CLIENT"]
- assert_equal 2, c["FIRM"]
- end
- def test_should_not_overshadow_enumerable_sum
- assert_equal 6, [1, 2, 3].sum(&:abs)
- end
- def test_should_sum_scoped_field
- assert_equal 15, companies(:rails_core).companies.sum(:id)
- end
- def test_should_sum_scoped_field_with_from
- assert_equal Club.count, Organization.clubs.count
- end
- def test_should_sum_scoped_field_with_conditions
- assert_equal 8, companies(:rails_core).companies.where("id > 7").sum(:id)
- end
- def test_should_group_by_scoped_field
- c = companies(:rails_core).companies.group(:name).sum(:id)
- assert_equal 7, c["Leetsoft"]
- assert_equal 8, c["Jadedpixel"]
- end
- def test_should_group_by_summed_field_through_association_and_having
- c = companies(:rails_core).companies.group(:name).having("sum(id) > 7").sum(:id)
- assert_nil c["Leetsoft"]
- assert_equal 8, c["Jadedpixel"]
- end
- def test_should_count_selected_field_with_include
- assert_equal 6, Account.includes(:firm).distinct.count
- assert_equal 4, Account.includes(:firm).distinct.select(:credit_limit).count
- assert_equal 4, Account.includes(:firm).distinct.count("DISTINCT credit_limit")
- assert_equal 4, Account.includes(:firm).distinct.count("DISTINCT(credit_limit)")
- end
- def test_should_not_perform_joined_include_by_default
- assert_equal Account.count, Account.includes(:firm).count
- queries = capture_sql { Account.includes(:firm).count }
- assert_no_match(/join/i, queries.last)
- end
- def test_should_perform_joined_include_when_referencing_included_tables
- joined_count = Account.includes(:firm).where(companies: { name: "37signals" }).count
- assert_equal 1, joined_count
- end
- def test_should_count_scoped_select
- Account.update_all("credit_limit = NULL")
- assert_equal 0, Account.select("credit_limit").count
- end
- def test_should_count_scoped_select_with_options
- Account.update_all("credit_limit = NULL")
- Account.last.update_columns("credit_limit" => 49)
- Account.first.update_columns("credit_limit" => 51)
- assert_equal 1, Account.select("credit_limit").where("credit_limit >= 50").count
- end
- def test_should_count_manual_select_with_include
- assert_equal 6, Account.select("DISTINCT accounts.id").includes(:firm).count
- end
- def test_should_count_manual_select_with_count_all
- assert_equal 5, Account.select("DISTINCT accounts.firm_id").count(:all)
- end
- def test_should_count_with_manual_distinct_select_and_distinct
- assert_equal 4, Account.select("DISTINCT accounts.firm_id").distinct(true).count
- end
- def test_should_count_manual_select_with_group_with_count_all
- expected = { nil => 1, 1 => 1, 2 => 1, 6 => 2, 9 => 1 }
- actual = Account.select("DISTINCT accounts.firm_id").group("accounts.firm_id").count(:all)
- assert_equal expected, actual
- end
- def test_should_count_manual_with_count_all
- assert_equal 6, Account.count(:all)
- end
- def test_count_selected_arel_attribute
- assert_equal 5, Account.select(Account.arel_table[:firm_id]).count
- assert_equal 4, Account.distinct.select(Account.arel_table[:firm_id]).count
- end
- def test_count_with_column_parameter
- assert_equal 5, Account.count(:firm_id)
- end
- def test_count_with_arel_attribute
- assert_equal 5, Account.count(Account.arel_table[:firm_id])
- end
- def test_count_with_arel_star
- assert_equal 6, Account.count(Arel.star)
- end
- def test_count_with_distinct
- assert_equal 4, Account.select(:credit_limit).distinct.count
- end
- def test_count_with_aliased_attribute
- assert_equal 6, Account.count(:available_credit)
- end
- def test_count_with_column_and_options_parameter
- assert_equal 2, Account.where("credit_limit = 50 AND firm_id IS NOT NULL").count(:firm_id)
- end
- def test_should_count_field_in_joined_table
- assert_equal 5, Account.joins(:firm).count("companies.id")
- assert_equal 4, Account.joins(:firm).distinct.count("companies.id")
- end
- def test_count_arel_attribute_in_joined_table_with
- assert_equal 5, Account.joins(:firm).count(Company.arel_table[:id])
- assert_equal 4, Account.joins(:firm).distinct.count(Company.arel_table[:id])
- end
- def test_count_selected_arel_attribute_in_joined_table
- assert_equal 5, Account.joins(:firm).select(Company.arel_table[:id]).count
- assert_equal 4, Account.joins(:firm).distinct.select(Company.arel_table[:id]).count
- end
- def test_should_count_field_in_joined_table_with_group_by
- c = Account.group("accounts.firm_id").joins(:firm).count("companies.id")
- [1, 6, 2, 9].each { |firm_id| assert_includes c.keys, firm_id }
- end
- def test_should_count_field_of_root_table_with_conflicting_group_by_column
- expected = { 1 => 2, 2 => 1, 4 => 5, 5 => 2, 7 => 1 }
- assert_equal expected, Post.joins(:comments).group(:post_id).count
- assert_equal expected, Post.joins(:comments).group("comments.post_id").count
- assert_equal expected, Post.joins(:comments).group(:post_id).select("DISTINCT posts.author_id").count(:all)
- end
- def test_count_with_no_parameters_isnt_deprecated
- assert_not_deprecated { Account.count }
- end
- def test_count_with_too_many_parameters_raises
- assert_raise(ArgumentError) { Account.count(1, 2, 3) }
- end
- def test_count_with_order
- assert_equal 6, Account.order(:credit_limit).count
- end
- def test_count_with_reverse_order
- assert_equal 6, Account.order(:credit_limit).reverse_order.count
- end
- def test_count_with_where_and_order
- assert_equal 1, Account.where(firm_name: "37signals").count
- assert_equal 1, Account.where(firm_name: "37signals").order(:firm_name).count
- assert_equal 1, Account.where(firm_name: "37signals").order(:firm_name).reverse_order.count
- end
- def test_count_with_block
- assert_equal 4, Account.count { |account| account.credit_limit.modulo(10).zero? }
- end
- def test_should_sum_expression
- assert_equal 636, Account.sum("2 * credit_limit")
- end
- def test_sum_expression_returns_zero_when_no_records_to_sum
- assert_equal 0, Account.where("1 = 2").sum("2 * credit_limit")
- end
- def test_count_with_from_option
- assert_equal Company.count(:all), Company.from("companies").count(:all)
- assert_equal Account.where("credit_limit = 50").count(:all),
- Account.from("accounts").where("credit_limit = 50").count(:all)
- assert_equal Company.where(type: "Firm").count(:type),
- Company.where(type: "Firm").from("companies").count(:type)
- end
- def test_sum_with_from_option
- assert_equal Account.sum(:credit_limit), Account.from("accounts").sum(:credit_limit)
- assert_equal Account.where("credit_limit > 50").sum(:credit_limit),
- Account.where("credit_limit > 50").from("accounts").sum(:credit_limit)
- end
- def test_average_with_from_option
- assert_equal Account.average(:credit_limit), Account.from("accounts").average(:credit_limit)
- assert_equal Account.where("credit_limit > 50").average(:credit_limit),
- Account.where("credit_limit > 50").from("accounts").average(:credit_limit)
- end
- def test_minimum_with_from_option
- assert_equal Account.minimum(:credit_limit), Account.from("accounts").minimum(:credit_limit)
- assert_equal Account.where("credit_limit > 50").minimum(:credit_limit),
- Account.where("credit_limit > 50").from("accounts").minimum(:credit_limit)
- end
- def test_maximum_with_from_option
- assert_equal Account.maximum(:credit_limit), Account.from("accounts").maximum(:credit_limit)
- assert_equal Account.where("credit_limit > 50").maximum(:credit_limit),
- Account.where("credit_limit > 50").from("accounts").maximum(:credit_limit)
- end
- def test_maximum_with_not_auto_table_name_prefix_if_column_included
- Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- assert_equal 7, Company.includes(:contracts).maximum(:developer_id)
- end
- def test_minimum_with_not_auto_table_name_prefix_if_column_included
- Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- assert_equal 7, Company.includes(:contracts).minimum(:developer_id)
- end
- def test_sum_with_not_auto_table_name_prefix_if_column_included
- Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- assert_equal 7, Company.includes(:contracts).sum(:developer_id)
- end
- if current_adapter?(:Mysql2Adapter)
- def test_from_option_with_specified_index
- assert_equal Edge.count(:all), Edge.from("edges USE INDEX(unique_edge_index)").count(:all)
- assert_equal Edge.where("sink_id < 5").count(:all),
- Edge.from("edges USE INDEX(unique_edge_index)").where("sink_id < 5").count(:all)
- end
- end
- def test_from_option_with_table_different_than_class
- assert_equal Account.count(:all), Company.from("accounts").count(:all)
- end
- def test_distinct_is_honored_when_used_with_count_operation_after_group
- # Count the number of authors for approved topics
- approved_topics_count = Topic.group(:approved).count(:author_name)[true]
- assert_equal approved_topics_count, 4
- # Count the number of distinct authors for approved Topics
- distinct_authors_for_approved_count = Topic.group(:approved).distinct.count(:author_name)[true]
- assert_equal distinct_authors_for_approved_count, 3
- end
- def test_pluck
- assert_equal [1, 2, 3, 4, 5], Topic.order(:id).pluck(:id)
- end
- def test_pluck_with_empty_in
- Topic.send(:load_schema)
- assert_no_queries do
- assert_equal [], Topic.where(id: []).pluck(:id)
- end
- end
- def test_pluck_without_column_names
- if current_adapter?(:OracleAdapter)
- assert_equal [[1, "Firm", 1, nil, "37signals", nil, 1, nil, nil]], Company.order(:id).limit(1).pluck
- else
- assert_equal [[1, "Firm", 1, nil, "37signals", nil, 1, nil, ""]], Company.order(:id).limit(1).pluck
- end
- end
- def test_pluck_type_cast
- topic = topics(:first)
- relation = Topic.where(id: topic.id)
- assert_equal [ topic.approved ], relation.pluck(:approved)
- assert_equal [ topic.last_read ], relation.pluck(:last_read)
- assert_equal [ topic.written_on ], relation.pluck(:written_on)
- end
- def test_pluck_with_type_cast_does_not_corrupt_the_query_cache
- topic = topics(:first)
- relation = Topic.where(id: topic.id)
- assert_queries 1 do
- Topic.cache do
- kind = relation.select(:written_on).load.first.read_attribute_before_type_cast(:written_on).class
- relation.pluck(:written_on)
- assert_kind_of kind, relation.select(:written_on).load.first.read_attribute_before_type_cast(:written_on)
- end
- end
- end
- def test_pluck_and_distinct
- assert_equal [50, 53, 55, 60], Account.order(:credit_limit).distinct.pluck(:credit_limit)
- end
- def test_pluck_in_relation
- company = Company.first
- contract = company.contracts.create!
- assert_equal [contract.id], company.contracts.pluck(:id)
- end
- def test_pluck_on_aliased_attribute
- assert_equal "The First Topic", Topic.order(:id).pluck(:heading).first
- end
- def test_pluck_with_serialization
- t = Topic.create!(content: { foo: :bar })
- assert_equal [{ foo: :bar }], Topic.where(id: t.id).pluck(:content)
- end
- def test_pluck_with_qualified_column_name
- assert_equal [1, 2, 3, 4, 5], Topic.order(:id).pluck("topics.id")
- end
- def test_pluck_auto_table_name_prefix
- c = Company.create!(name: "test", contracts: [Contract.new])
- assert_equal [c.id], Company.joins(:contracts).pluck(:id)
- end
- def test_pluck_if_table_included
- c = Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- assert_equal [c.id], Company.includes(:contracts).where("contracts.id" => c.contracts.first).pluck(:id)
- end
- def test_pluck_not_auto_table_name_prefix_if_column_joined
- company = Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- metadata = company.contracts.first.metadata
- assert_equal [metadata], Company.joins(:contracts).pluck(:metadata)
- end
- def test_pluck_with_selection_clause
- assert_equal [50, 53, 55, 60], Account.pluck(Arel.sql("DISTINCT credit_limit")).sort
- assert_equal [50, 53, 55, 60], Account.pluck(Arel.sql("DISTINCT accounts.credit_limit")).sort
- assert_equal [50, 53, 55, 60], Account.pluck(Arel.sql("DISTINCT(credit_limit)")).sort
- assert_equal [50 + 53 + 55 + 60], Account.pluck(Arel.sql("SUM(DISTINCT(credit_limit))"))
- end
- def test_plucks_with_ids
- assert_equal Company.all.map(&:id).sort, Company.ids.sort
- end
- def test_pluck_with_includes_limit_and_empty_result
- assert_equal [], Topic.includes(:replies).limit(0).pluck(:id)
- assert_equal [], Topic.includes(:replies).limit(1).where("0 = 1").pluck(:id)
- end
- def test_pluck_with_includes_offset
- assert_equal [5], Topic.includes(:replies).order(:id).offset(4).pluck(:id)
- assert_equal [], Topic.includes(:replies).order(:id).offset(5).pluck(:id)
- end
- def test_pluck_with_join
- assert_equal [[2, 2], [4, 4]], Reply.includes(:topic).order(:id).pluck(:id, :"topics.id")
- end
- def test_group_by_with_order_by_virtual_count_attribute
- expected = { "SpecialPost" => 1, "StiPost" => 2 }
- actual = Post.group(:type).order(:count).limit(2).maximum(:comments_count)
- assert_equal expected, actual
- end if current_adapter?(:PostgreSQLAdapter)
- def test_group_by_with_limit
- expected = { "Post" => 8, "SpecialPost" => 1 }
- actual = Post.includes(:comments).group(:type).order(:type).limit(2).count("comments.id")
- assert_equal expected, actual
- end
- def test_group_by_with_offset
- expected = { "SpecialPost" => 1, "StiPost" => 2 }
- actual = Post.includes(:comments).group(:type).order(:type).offset(1).count("comments.id")
- assert_equal expected, actual
- end
- def test_group_by_with_limit_and_offset
- expected = { "SpecialPost" => 1 }
- actual = Post.includes(:comments).group(:type).order(:type).offset(1).limit(1).count("comments.id")
- assert_equal expected, actual
- end
- def test_group_by_with_quoted_count_and_order_by_alias
- quoted_posts_id = Post.connection.quote_table_name("posts.id")
- expected = { "SpecialPost" => 1, "StiPost" => 1, "Post" => 9 }
- actual = Post.group(:type).order("count_posts_id").count(quoted_posts_id)
- assert_equal expected, actual
- end
- def test_pluck_not_auto_table_name_prefix_if_column_included
- Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- ids = Company.includes(:contracts).pluck(:developer_id)
- assert_equal Company.count, ids.length
- assert_equal [7], ids.compact
- end
- def test_pluck_multiple_columns
- assert_equal [
- [1, "The First Topic"], [2, "The Second Topic of the day"],
- [3, "The Third Topic of the day"], [4, "The Fourth Topic of the day"],
- [5, "The Fifth Topic of the day"]
- ], Topic.order(:id).pluck(:id, :title)
- assert_equal [
- [1, "The First Topic", "David"], [2, "The Second Topic of the day", "Mary"],
- [3, "The Third Topic of the day", "Carl"], [4, "The Fourth Topic of the day", "Carl"],
- [5, "The Fifth Topic of the day", "Jason"]
- ], Topic.order(:id).pluck(:id, :title, :author_name)
- end
- def test_pluck_with_multiple_columns_and_selection_clause
- assert_equal [[1, 50], [2, 50], [3, 50], [4, 60], [5, 55], [6, 53]],
- Account.order(:id).pluck("id, credit_limit")
- end
- def test_pluck_with_multiple_columns_and_includes
- Company.create!(name: "test", contracts: [Contract.new(developer_id: 7)])
- companies_and_developers = Company.order("companies.id").includes(:contracts).pluck(:name, :developer_id)
- assert_equal Company.count, companies_and_developers.length
- assert_equal ["37signals", nil], companies_and_developers.first
- assert_equal ["test", 7], companies_and_developers.last
- end
- def test_pluck_with_reserved_words
- Possession.create!(where: "Over There")
- assert_equal ["Over There"], Possession.pluck(:where)
- end
- def test_pluck_replaces_select_clause
- taks_relation = Topic.select(:approved, :id).order(:id)
- assert_equal [1, 2, 3, 4, 5], taks_relation.pluck(:id)
- assert_equal [false, true, true, true, true], taks_relation.pluck(:approved)
- end
- def test_pluck_columns_with_same_name
- expected = [["The First Topic", "The Second Topic of the day"], ["The Third Topic of the day", "The Fourth Topic of the day"]]
- actual = Topic.joins(:replies).order(:id)
- .pluck("topics.title", "replies_topics.title")
- assert_equal expected, actual
- end
- def test_pluck_functions_with_alias
- assert_equal [
- [1, "The First Topic"], [2, "The Second Topic of the day"],
- [3, "The Third Topic of the day"], [4, "The Fourth Topic of the day"],
- [5, "The Fifth Topic of the day"]
- ], Topic.order(:id).pluck(
- Arel.sql("COALESCE(id, 0) id"),
- Arel.sql("COALESCE(title, 'untitled') title")
- )
- end
- def test_pluck_functions_without_alias
- assert_equal [
- [1, "The First Topic"], [2, "The Second Topic of the day"],
- [3, "The Third Topic of the day"], [4, "The Fourth Topic of the day"],
- [5, "The Fifth Topic of the day"]
- ], Topic.order(:id).pluck(
- Arel.sql("COALESCE(id, 0)"),
- Arel.sql("COALESCE(title, 'untitled')")
- )
- end
- def test_calculation_with_polymorphic_relation
- part = ShipPart.create!(name: "has trinket")
- part.trinkets.create!
- assert_equal part.id, ShipPart.joins(:trinkets).sum(:id)
- end
- def test_pluck_joined_with_polymorphic_relation
- part = ShipPart.create!(name: "has trinket")
- part.trinkets.create!
- assert_equal [part.id], ShipPart.joins(:trinkets).pluck(:id)
- end
- def test_pluck_loaded_relation
- companies = Company.order(:id).limit(3).load
- assert_queries(0) do
- assert_equal ["37signals", "Summit", "Microsoft"], companies.pluck(:name)
- end
- end
- def test_pluck_loaded_relation_multiple_columns
- companies = Company.order(:id).limit(3).load
- assert_queries(0) do
- assert_equal [[1, "37signals"], [2, "Summit"], [3, "Microsoft"]], companies.pluck(:id, :name)
- end
- end
- def test_pluck_loaded_relation_sql_fragment
- companies = Company.order(:name).limit(3).load
- assert_queries(1) do
- assert_equal ["37signals", "Apex", "Ex Nihilo"], companies.pluck(Arel.sql("DISTINCT name"))
- end
- end
- def test_pick_one
- assert_equal "The First Topic", Topic.order(:id).pick(:heading)
- assert_no_queries do
- assert_nil Topic.none.pick(:heading)
- assert_nil Topic.where(id: 9999999999999999999).pick(:heading)
- end
- end
- def test_pick_two
- assert_equal ["David", "david@loudthinking.com"], Topic.order(:id).pick(:author_name, :author_email_address)
- assert_no_queries do
- assert_nil Topic.none.pick(:author_name, :author_email_address)
- assert_nil Topic.where(id: 9999999999999999999).pick(:author_name, :author_email_address)
- end
- end
- def test_pick_delegate_to_all
- cool_first = minivans(:cool_first)
- assert_equal cool_first.color, Minivan.pick(:color)
- end
- def test_pick_loaded_relation
- companies = Company.order(:id).limit(3).load
- assert_no_queries do
- assert_equal "37signals", companies.pick(:name)
- end
- end
- def test_pick_loaded_relation_multiple_columns
- companies = Company.order(:id).limit(3).load
- assert_no_queries do
- assert_equal [1, "37signals"], companies.pick(:id, :name)
- end
- end
- def test_pick_loaded_relation_sql_fragment
- companies = Company.order(:name).limit(3).load
- assert_queries 1 do
- assert_equal "37signals", companies.pick(Arel.sql("DISTINCT name"))
- end
- end
- def test_grouped_calculation_with_polymorphic_relation
- part = ShipPart.create!(name: "has trinket")
- part.trinkets.create!
- assert_equal({ "has trinket" => part.id }, ShipPart.joins(:trinkets).group("ship_parts.name").sum(:id))
- end
- def test_calculation_grouped_by_association_doesnt_error_when_no_records_have_association
- Client.update_all(client_of: nil)
- assert_equal({ nil => Client.count }, Client.group(:firm).count)
- end
- def test_should_reference_correct_aliases_while_joining_tables_of_has_many_through_association
- assert_nothing_raised do
- developer = Developer.create!(name: "developer")
- developer.ratings.includes(comment: :post).where(posts: { id: 1 }).count
- end
- end
- def test_sum_uses_enumerable_version_when_block_is_given
- block_called = false
- relation = Client.all.load
- assert_no_queries do
- assert_equal 0, relation.sum { block_called = true; 0 }
- end
- assert block_called
- end
- def test_having_with_strong_parameters
- params = ProtectedParams.new(credit_limit: "50")
- assert_raises(ActiveModel::ForbiddenAttributesError) do
- Account.group(:id).having(params)
- end
- result = Account.group(:id).having(params.permit!)
- assert_equal 50, result[0].credit_limit
- assert_equal 50, result[1].credit_limit
- assert_equal 50, result[2].credit_limit
- end
- def test_group_by_attribute_with_custom_type
- assert_equal({ "proposed" => 2, "published" => 2 }, Book.group(:status).count)
- end
- def test_aggregate_attribute_on_custom_type
- assert_equal 4, Book.sum(:status)
- assert_equal 1, Book.sum(:difficulty)
- assert_equal 0, Book.minimum(:status)
- assert_equal 1, Book.maximum(:difficulty)
- assert_equal({ "proposed" => 0, "published" => 4 }, Book.group(:status).sum(:status))
- assert_equal({ "proposed" => 0, "published" => 1 }, Book.group(:status).sum(:difficulty))
- assert_equal({ "proposed" => 0, "published" => 2 }, Book.group(:status).minimum(:status))
- assert_equal({ "proposed" => 0, "published" => 1 }, Book.group(:status).maximum(:difficulty))
- end
- def test_minimum_and_maximum_on_non_numeric_type
- assert_equal Date.new(2004, 4, 15), Topic.minimum(:last_read)
- assert_equal Date.new(2004, 4, 15), Topic.maximum(:last_read)
- assert_equal({ false => Date.new(2004, 4, 15), true => nil }, Topic.group(:approved).minimum(:last_read))
- assert_equal({ false => Date.new(2004, 4, 15), true => nil }, Topic.group(:approved).maximum(:last_read))
- end
- def test_select_avg_with_group_by_as_virtual_attribute_with_sql
- rails_core = companies(:rails_core)
- sql = <<~SQL
- SELECT firm_id, AVG(credit_limit) AS avg_credit_limit
- FROM accounts
- WHERE firm_id = ?
- GROUP BY firm_id
- LIMIT 1
- SQL
- account = Account.find_by_sql([sql, rails_core]).first
- # id was not selected, so it should be nil
- # (cannot select id because it wasn't used in the GROUP BY clause)
- assert_nil account.id
- # firm_id was explicitly selected, so it should be present
- assert_equal(rails_core, account.firm)
- # avg_credit_limit should be present as a virtual attribute
- assert_equal(52.5, account.avg_credit_limit)
- end
- def test_select_avg_with_group_by_as_virtual_attribute_with_ar
- rails_core = companies(:rails_core)
- account = Account
- .select(:firm_id, "AVG(credit_limit) AS avg_credit_limit")
- .where(firm: rails_core)
- .group(:firm_id)
- .take!
- # id was not selected, so it should be nil
- # (cannot select id because it wasn't used in the GROUP BY clause)
- assert_nil account.id
- # firm_id was explicitly selected, so it should be present
- assert_equal(rails_core, account.firm)
- # avg_credit_limit should be present as a virtual attribute
- assert_equal(52.5, account.avg_credit_limit)
- end
- def test_select_avg_with_joins_and_group_by_as_virtual_attribute_with_sql
- rails_core = companies(:rails_core)
- sql = <<~SQL
- SELECT companies.*, AVG(accounts.credit_limit) AS avg_credit_limit
- FROM companies
- INNER JOIN accounts ON companies.id = accounts.firm_id
- WHERE companies.id = ?
- GROUP BY companies.id
- LIMIT 1
- SQL
- firm = DependentFirm.find_by_sql([sql, rails_core]).first
- # all the DependentFirm attributes should be present
- assert_equal rails_core, firm
- assert_equal rails_core.name, firm.name
- # avg_credit_limit should be present as a virtual attribute
- assert_equal(52.5, firm.avg_credit_limit)
- end
- def test_select_avg_with_joins_and_group_by_as_virtual_attribute_with_ar
- rails_core = companies(:rails_core)
- firm = DependentFirm
- .select("companies.*", "AVG(accounts.credit_limit) AS avg_credit_limit")
- .where(id: rails_core)
- .joins(:account)
- .group(:id)
- .take!
- # all the DependentFirm attributes should be present
- assert_equal rails_core, firm
- assert_equal rails_core.name, firm.name
- # avg_credit_limit should be present as a virtual attribute
- assert_equal(52.5, firm.avg_credit_limit)
- end
- def test_count_with_block_and_column_name_raises_an_error
- assert_raises(ArgumentError) do
- Account.count(:firm_id) { true }
- end
- end
- def test_sum_with_block_and_column_name_raises_an_error
- assert_raises(ArgumentError) do
- Account.sum(:firm_id) { 1 }
- end
- end
- test "#skip_query_cache! for #pluck" do
- Account.cache do
- assert_queries(1) do
- Account.pluck(:credit_limit)
- Account.pluck(:credit_limit)
- end
- assert_queries(2) do
- Account.all.skip_query_cache!.pluck(:credit_limit)
- Account.all.skip_query_cache!.pluck(:credit_limit)
- end
- end
- end
- test "#skip_query_cache! for a simple calculation" do
- Account.cache do
- assert_queries(1) do
- Account.calculate(:sum, :credit_limit)
- Account.calculate(:sum, :credit_limit)
- end
- assert_queries(2) do
- Account.all.skip_query_cache!.calculate(:sum, :credit_limit)
- Account.all.skip_query_cache!.calculate(:sum, :credit_limit)
- end
- end
- end
- test "#skip_query_cache! for a grouped calculation" do
- Account.cache do
- assert_queries(1) do
- Account.group(:firm_id).calculate(:sum, :credit_limit)
- Account.group(:firm_id).calculate(:sum, :credit_limit)
- end
- assert_queries(2) do
- Account.all.skip_query_cache!.group(:firm_id).calculate(:sum, :credit_limit)
- Account.all.skip_query_cache!.group(:firm_id).calculate(:sum, :credit_limit)
- end
- end
- end
- end