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require "cases/migration/helper"
module ActiveRecord
class Migration
class ReferencesStatementsTest < ActiveRecord::TestCase
include ActiveRecord::Migration::TestHelper
self.use_transactional_fixtures = false
def setup
super
@table_name = :test_models
add_column table_name, :supplier_id, :integer
add_index table_name, :supplier_id
end
def test_creates_reference_id_column
add_reference table_name, :user
assert column_exists?(table_name, :user_id, :integer)
end
def test_does_not_create_reference_type_column
add_reference table_name, :taggable
refute column_exists?(table_name, :taggable_type, :string)
end
def test_creates_reference_type_column
add_reference table_name, :taggable, polymorphic: true
assert column_exists?(table_name, :taggable_type, :string)
end
def test_creates_reference_id_index
add_reference table_name, :user, index: true
assert index_exists?(table_name, :user_id)
end
def test_does_not_create_reference_id_index
add_reference table_name, :user
refute index_exists?(table_name, :user_id)
end
def test_creates_polymorphic_index
add_reference table_name, :taggable, polymorphic: true, index: true
assert index_exists?(table_name, [:taggable_id, :taggable_type])
end
def test_creates_reference_type_column_with_default
add_reference table_name, :taggable, polymorphic: { default: 'Photo' }, index: true
assert column_exists?(table_name, :taggable_type, :string, default: 'Photo')
end
def test_creates_named_index
add_reference table_name, :tag, index: { name: 'index_taggings_on_tag_id' }
assert index_exists?(table_name, :tag_id, name: 'index_taggings_on_tag_id')
end
def test_deletes_reference_id_column
remove_reference table_name, :supplier
refute column_exists?(table_name, :supplier_id, :integer)
end
def test_deletes_reference_id_index
remove_reference table_name, :supplier
refute index_exists?(table_name, :supplier_id)
end
def test_does_not_delete_reference_type_column
with_polymorphic_column do
remove_reference table_name, :supplier
refute column_exists?(table_name, :supplier_id, :integer)
assert column_exists?(table_name, :supplier_type, :string)
end
end
def test_deletes_reference_type_column
with_polymorphic_column do
remove_reference table_name, :supplier, polymorphic: true
refute column_exists?(table_name, :supplier_type, :string)
end
end
def test_deletes_polymorphic_index
with_polymorphic_column do
remove_reference table_name, :supplier, polymorphic: true
refute index_exists?(table_name, [:supplier_id, :supplier_type])
end
end
def test_add_belongs_to_alias
add_belongs_to table_name, :user
assert column_exists?(table_name, :user_id, :integer)
end
def test_remove_belongs_to_alias
remove_belongs_to table_name, :supplier
refute column_exists?(table_name, :supplier_id, :integer)
end
private
def with_polymorphic_column
add_column table_name, :supplier_type, :string
add_index table_name, [:supplier_id, :supplier_type]
yield
end
end
end
end
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