From 1f802968c5a803f649fc27c7295b01aef3af6514 Mon Sep 17 00:00:00 2001 From: Jeremy Kemper Date: Wed, 30 May 2007 06:57:04 +0000 Subject: Calculations: return nil average instead of 0 when there are no rows to average. Closes #8298. git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6904 5ecf4fe2-1ee6-0310-87b1-e25e094e27de --- activerecord/test/calculations_test.rb | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'activerecord/test/calculations_test.rb') diff --git a/activerecord/test/calculations_test.rb b/activerecord/test/calculations_test.rb index e450c0a917..22ef78ce40 100644 --- a/activerecord/test/calculations_test.rb +++ b/activerecord/test/calculations_test.rb @@ -4,6 +4,10 @@ require 'fixtures/topic' Company.has_many :accounts +class NumericData < ActiveRecord::Base + self.table_name = 'numeric_data' +end + class CalculationsTest < Test::Unit::TestCase fixtures :companies, :accounts, :topics @@ -17,6 +21,10 @@ class CalculationsTest < Test::Unit::TestCase 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 -- cgit v1.2.3