--- /dev/null
+require "cases/helper"
+require 'models/company'
+require 'models/topic'
+require 'models/edge'
+
+Company.has_many :accounts
+
+class NumericData < ActiveRecord::Base
+ self.table_name = 'numeric_data'
+end
+
+class CalculationsTest < ActiveRecord::TestCase
+ fixtures :companies, :accounts, :topics
+
+ def test_should_sum_field
+ assert_equal 318, Account.sum(:credit_limit)
+ end
+
+ def test_should_average_field
+ value = Account.average(:credit_limit)
+ assert_kind_of BigDecimal, value
+ assert_equal BigDecimal.new('53.0'), value
+ end
+
+ def test_should_return_nil_as_average
+ assert_nil NumericData.average(:bank_balance)
+ end
+
+ def test_type_cast_calculated_value_should_convert_db_averages_of_fixnum_class_to_decimal
+ assert_equal 0, NumericData.send(:type_cast_calculated_value, 0, nil, 'avg')
+ assert_equal 53.0, NumericData.send(:type_cast_calculated_value, 53, nil, 'avg')
+ end
+
+ def test_should_get_maximum_of_field
+ assert_equal 60, Account.maximum(:credit_limit)
+ end
+
+ def test_should_get_maximum_of_field_with_include
+ assert_equal 50, Account.maximum(:credit_limit, :include => :firm, :conditions => "companies.name != 'Summit'")
+ end
+
+ def test_should_get_maximum_of_field_with_scoped_include
+ Account.with_scope :find => { :include => :firm, :conditions => "companies.name != 'Summit'" } do
+ assert_equal 50, Account.maximum(:credit_limit)
+ end
+ end
+
+ def test_should_get_minimum_of_field
+ assert_equal 50, Account.minimum(:credit_limit)
+ end
+
+ def test_should_group_by_field
+ c = Account.sum(:credit_limit, :group => :firm_id)
+ [1,6,2].each { |firm_id| assert c.keys.include?(firm_id) }
+ end
+
+ def test_should_group_by_summed_field
+ c = Account.sum(:credit_limit, :group => :firm_id)
+ assert_equal 50, c[1]
+ assert_equal 105, c[6]
+ assert_equal 60, c[2]
+ end
+
+ def test_should_order_by_grouped_field
+ c = Account.sum(:credit_limit, :group => :firm_id, :order => "firm_id")
+ assert_equal [1, 2, 6, 9], c.keys.compact
+ end
+
+ def test_should_order_by_calculation
+ c = Account.sum(:credit_limit, :group => :firm_id, :order => "sum_credit_limit desc, firm_id")
+ 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.sum(:credit_limit, :conditions => "firm_id IS NOT NULL",
+ :group => :firm_id, :order => "firm_id", :limit => 2)
+ assert_equal [1, 2], c.keys.compact
+ end
+
+ def test_should_limit_calculation_with_offset
+ c = Account.sum(:credit_limit, :conditions => "firm_id IS NOT NULL",
+ :group => :firm_id, :order => "firm_id", :limit => 2, :offset => 1)
+ assert_equal [2, 6], c.keys.compact
+ end
+
+ def test_should_group_by_summed_field_having_condition
+ c = Account.sum(:credit_limit, :group => :firm_id,
+ :having => 'sum(credit_limit) > 50')
+ assert_nil c[1]
+ assert_equal 105, c[6]
+ assert_equal 60, c[2]
+ end
+
+ def test_should_group_by_summed_association
+ c = Account.sum(:credit_limit, :group => :firm)
+ 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.sum(:credit_limit, :conditions => 'firm_id = 6')
+ end
+
+ def test_should_return_zero_if_sum_conditions_return_nothing
+ assert_equal 0, Account.sum(:credit_limit, :conditions => '1 = 2')
+ assert_equal 0, companies(:rails_core).companies.sum(:id, :conditions => '1 = 2')
+ 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_group_by_summed_field_with_conditions
+ c = Account.sum(:credit_limit, :conditions => 'firm_id > 1',
+ :group => :firm_id)
+ 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.sum(:credit_limit, :conditions => 'firm_id > 1',
+ :group => :firm_id,
+ :having => 'sum(credit_limit) > 60')
+ 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.sum(:credit_limit, :group => 'accounts.firm_id')
+ 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.count(:all, :group => 'accounts.firm_id')
+ 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.count(:all, :group => :firm)
+ assert_equal 1, c[companies(:first_firm)]
+ assert_equal 2, c[companies(:rails_core)]
+ assert_equal 1, c[companies(:first_client)]
+ end
+
+ uses_mocha 'group_by_non_numeric_foreign_key_association' do
+ def test_should_group_by_association_with_non_numeric_foreign_key
+ ActiveRecord::Base.connection.expects(:select_all).returns([{"count_all" => 1, "firm_id" => "ABC"}])
+
+ firm = mock()
+ firm.expects(:id).returns("ABC")
+ firm.expects(:class).returns(Firm)
+ Company.expects(:find).with(["ABC"]).returns([firm])
+
+ column = mock()
+ column.expects(:name).at_least_once.returns(:firm_id)
+ column.expects(:type_cast).with("ABC").returns("ABC")
+ Account.expects(:columns).at_least_once.returns([column])
+
+ c = Account.count(:all, :group => :firm)
+ assert_equal Firm, c.first.first.class
+ assert_equal 1, c.first.last
+ end
+ 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.count(:all, :group => :another_firm)
+ 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_not_modify_options_when_using_includes
+ options = {:conditions => 'companies.id > 1', :include => :firm}
+ options_copy = options.dup
+
+ Account.count(:all, options)
+ assert_equal options_copy, options
+ end
+
+ def test_should_calculate_grouped_by_function
+ c = Company.count(:all, :group => "UPPER(#{QUOTED_TYPE})")
+ assert_equal 2, c[nil]
+ assert_equal 1, c['DEPENDENTFIRM']
+ assert_equal 3, c['CLIENT']
+ assert_equal 2, c['FIRM']
+ end
+
+ def test_should_calculate_grouped_by_function_with_table_alias
+ c = Company.count(:all, :group => "UPPER(companies.#{QUOTED_TYPE})")
+ assert_equal 2, c[nil]
+ assert_equal 1, c['DEPENDENTFIRM']
+ assert_equal 3, 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_conditions
+ assert_equal 8, companies(:rails_core).companies.sum(:id, :conditions => 'id > 7')
+ end
+
+ def test_should_group_by_scoped_field
+ c = companies(:rails_core).companies.sum(:id, :group => :name)
+ assert_equal 7, c['Leetsoft']
+ assert_equal 8, c['Jadedpixel']
+ end
+
+ def test_should_group_by_summed_field_with_conditions_and_having
+ c = companies(:rails_core).companies.sum(:id, :group => :name,
+ :having => 'sum(id) > 7')
+ assert_nil c['Leetsoft']
+ assert_equal 8, c['Jadedpixel']
+ end
+
+ def test_should_reject_invalid_options
+ assert_nothing_raised do
+ [:count, :sum].each do |func|
+ # empty options are valid
+ Company.send(:validate_calculation_options, func)
+ # these options are valid for all calculations
+ [:select, :conditions, :joins, :order, :group, :having, :distinct].each do |opt|
+ Company.send(:validate_calculation_options, func, opt => true)
+ end
+ end
+
+ # :include is only valid on :count
+ Company.send(:validate_calculation_options, :count, :include => true)
+ end
+
+ assert_raises(ArgumentError) { Company.send(:validate_calculation_options, :sum, :foo => :bar) }
+ assert_raises(ArgumentError) { Company.send(:validate_calculation_options, :count, :foo => :bar) }
+ end
+
+ def test_should_count_selected_field_with_include
+ assert_equal 6, Account.count(:distinct => true, :include => :firm)
+ assert_equal 4, Account.count(:distinct => true, :include => :firm, :select => :credit_limit)
+ end
+
+ def test_should_count_manual_select_with_include
+ assert_equal 6, Account.count(:select => "DISTINCT accounts.id", :include => :firm)
+ end
+
+ def test_count_with_column_parameter
+ assert_equal 5, Account.count(:firm_id)
+ end
+
+ def test_count_with_column_and_options_parameter
+ assert_equal 2, Account.count(:firm_id, :conditions => "credit_limit = 50")
+ 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_should_sum_expression
+ assert_equal '636', Account.sum("2 * credit_limit")
+ end
+
+ def test_count_with_from_option
+ assert_equal Company.count(:all), Company.count(:all, :from => 'companies')
+ assert_equal Account.count(:all, :conditions => "credit_limit = 50"),
+ Account.count(:all, :from => 'accounts', :conditions => "credit_limit = 50")
+ assert_equal Company.count(:type, :conditions => {:type => "Firm"}),
+ Company.count(:type, :conditions => {:type => "Firm"}, :from => 'companies')
+ end
+
+ def test_sum_with_from_option
+ assert_equal Account.sum(:credit_limit), Account.sum(:credit_limit, :from => 'accounts')
+ assert_equal Account.sum(:credit_limit, :conditions => "credit_limit > 50"),
+ Account.sum(:credit_limit, :from => 'accounts', :conditions => "credit_limit > 50")
+ end
+
+ def test_average_with_from_option
+ assert_equal Account.average(:credit_limit), Account.average(:credit_limit, :from => 'accounts')
+ assert_equal Account.average(:credit_limit, :conditions => "credit_limit > 50"),
+ Account.average(:credit_limit, :from => 'accounts', :conditions => "credit_limit > 50")
+ end
+
+ def test_minimum_with_from_option
+ assert_equal Account.minimum(:credit_limit), Account.minimum(:credit_limit, :from => 'accounts')
+ assert_equal Account.minimum(:credit_limit, :conditions => "credit_limit > 50"),
+ Account.minimum(:credit_limit, :from => 'accounts', :conditions => "credit_limit > 50")
+ end
+
+ def test_maximum_with_from_option
+ assert_equal Account.maximum(:credit_limit), Account.maximum(:credit_limit, :from => 'accounts')
+ assert_equal Account.maximum(:credit_limit, :conditions => "credit_limit > 50"),
+ Account.maximum(:credit_limit, :from => 'accounts', :conditions => "credit_limit > 50")
+ end
+
+ def test_from_option_with_specified_index
+ if Edge.connection.adapter_name == 'MySQL'
+ assert_equal Edge.count(:all), Edge.count(:all, :from => 'edges USE INDEX(unique_edge_index)')
+ assert_equal Edge.count(:all, :conditions => 'sink_id < 5'),
+ Edge.count(:all, :from => 'edges USE INDEX(unique_edge_index)', :conditions => 'sink_id < 5')
+ end
+ end
+
+ def test_from_option_with_table_different_than_class
+ assert_equal Account.count(:all), Company.count(:all, :from => 'accounts')
+ end
+
+end
projects / depot.git / blobdiff