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require 'cases/helper'
module ActiveRecord
class Migration
class CreateJoinTableTest < ActiveRecord::TestCase
attr_reader :connection
def setup
super
@connection = ActiveRecord::Base.connection
end
def teardown
super
%w(artists_musics musics_videos catalog).each do |table_name|
connection.drop_table table_name if connection.tables.include?(table_name)
end
end
def test_create_join_table
connection.create_join_table :artists, :musics
assert_equal %w(artist_id music_id), connection.columns(:artists_musics).map(&:name).sort
end
def test_create_join_table_set_not_null_by_default
connection.create_join_table :artists, :musics
assert_equal [false, false], connection.columns(:artists_musics).map(&:null)
end
def test_create_join_table_with_strings
connection.create_join_table 'artists', 'musics'
assert_equal %w(artist_id music_id), connection.columns(:artists_musics).map(&:name).sort
end
def test_create_join_table_with_the_proper_order
connection.create_join_table :videos, :musics
assert_equal %w(music_id video_id), connection.columns(:musics_videos).map(&:name).sort
end
def test_create_join_table_with_the_table_name
connection.create_join_table :artists, :musics, table_name: :catalog
assert_equal %w(artist_id music_id), connection.columns(:catalog).map(&:name).sort
end
def test_create_join_table_with_the_table_name_as_string
connection.create_join_table :artists, :musics, table_name: 'catalog'
assert_equal %w(artist_id music_id), connection.columns(:catalog).map(&:name).sort
end
def test_create_join_table_with_column_options
connection.create_join_table :artists, :musics, column_options: {null: true}
assert_equal [true, true], connection.columns(:artists_musics).map(&:null)
end
def test_create_join_table_without_indexes
connection.create_join_table :artists, :musics
assert connection.indexes(:artists_musics).blank?
end
def test_create_join_table_with_index
connection.create_join_table :artists, :musics do |t|
t.index [:artist_id, :music_id]
end
assert_equal [%w(artist_id music_id)], connection.indexes(:artists_musics).map(&:columns)
end
end
end
end
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