Move tests to cases

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8660 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 251 insertions, 0 deletions

diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb
new file mode 100644
index 0000000000..7bee644947
--- /dev/null
+++ b/activerecord/test/cases/calculations_test.rb
@@ -0,0 +1,251 @@
+require 'abstract_unit'
+require 'fixtures/company'
+require 'fixtures/topic'
+
+Company.has_many :accounts
+
+class NumericData < ActiveRecord::Base
+  self.table_name = 'numeric_data'
+end
+
+class CalculationsTest < ActiveSupport::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 Float, value
+    assert_in_delta 53.0, value, 0.001
+  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_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_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_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_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
+end