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test case to prevent duplicated associations with custom PK.

closes #9201
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1 parent fb40358 commit 96c1cafd3ab6250875cc62034000ea83ae1587af @senny senny committed Feb 8, 2013
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10 activerecord/test/cases/associations/has_many_associations_test.rb
@@ -20,6 +20,8 @@
require 'models/bulb'
require 'models/engine'
require 'models/categorization'
+require 'models/minivan'
+require 'models/speedometer'
class HasManyAssociationsTestForCountWithFinderSql < ActiveRecord::TestCase
class Invoice < ActiveRecord::Base
@@ -1747,4 +1749,12 @@ def test_collection_association_with_private_kernel_method
david.posts_with_special_categorizations = []
assert_equal [], david.posts_with_special_categorizations
end
+
+ test "does not duplicate associations when used with natural primary keys" do
+ speedometer = Speedometer.create!(id: '4')
+ minivan = speedometer.minivans.create!(minivan_id: 'a-van-red' ,name: 'a van', color: 'red')
+
+ assert_equal 1, speedometer.minivans.to_a.size, "Only one association should be present:\n#{speedometer.minivans.to_a}"
+ assert_equal 1, speedometer.reload.minivans.to_a.size
+ end
end
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2 activerecord/test/models/speedometer.rb
@@ -1,4 +1,6 @@
class Speedometer < ActiveRecord::Base
self.primary_key = :speedometer_id
belongs_to :dashboard
+
+ has_many :minivans
end

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