diff options
Diffstat (limited to 'activerecord/test/cases/calculations_test.rb')
| -rw-r--r-- | activerecord/test/cases/calculations_test.rb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb index e096585f62..041f8ffb7c 100644 --- a/activerecord/test/cases/calculations_test.rb +++ b/activerecord/test/cases/calculations_test.rb @@ -466,6 +466,21 @@ class CalculationsTest < ActiveRecord::TestCase assert_equal [7], Company.joins(:contracts).pluck(:developer_id) end + def test_pluck_with_selection_clause + assert_equal [50, 53, 55, 60], Account.pluck('DISTINCT credit_limit').sort + assert_equal [50, 53, 55, 60], Account.pluck('DISTINCT accounts.credit_limit').sort + assert_equal [50, 53, 55, 60], Account.pluck('DISTINCT(credit_limit)').sort + + # MySQL returns "SUM(DISTINCT(credit_limit))" as the column name unless + # an alias is provided. Without the alias, the column cannot be found + # and properly typecast. + assert_equal [50 + 53 + 55 + 60], Account.pluck('SUM(DISTINCT(credit_limit)) as credit_limit') + end + + def test_pluck_expects_a_single_selection + assert_raise(ArgumentError) { Account.pluck 'id, credit_limit' } + end + def test_plucks_with_ids assert_equal Company.all.map(&:id).sort, Company.ids.sort end |