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-rw-r--r--activerecord/test/cases/migration/references_index_test.rb99
1 files changed, 99 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration/references_index_test.rb b/activerecord/test/cases/migration/references_index_test.rb
new file mode 100644
index 0000000000..8ab1c59724
--- /dev/null
+++ b/activerecord/test/cases/migration/references_index_test.rb
@@ -0,0 +1,99 @@
+require 'cases/helper'
+
+module ActiveRecord
+ class Migration
+ class ReferencesIndexTest < ActiveRecord::TestCase
+ attr_reader :connection, :table_name
+
+ def setup
+ super
+ @connection = ActiveRecord::Base.connection
+ @table_name = :testings
+ end
+
+ def teardown
+ super
+ connection.drop_table :testings rescue nil
+ end
+
+ def test_creates_index
+ connection.create_table table_name do |t|
+ t.references :foo, :index => true
+ end
+
+ assert connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_does_not_create_index
+ connection.create_table table_name do |t|
+ t.references :foo
+ end
+
+ refute connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_does_not_create_index_explicit
+ connection.create_table table_name do |t|
+ t.references :foo, :index => false
+ end
+
+ refute connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_creates_index_with_options
+ connection.create_table table_name do |t|
+ t.references :foo, :index => {:name => :index_testings_on_yo_momma}
+ t.references :bar, :index => {:unique => true}
+ end
+
+ assert connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_yo_momma)
+ assert connection.index_exists?(table_name, :bar_id, :name => :index_testings_on_bar_id, :unique => true)
+ end
+
+ def test_creates_polymorphic_index
+ connection.create_table table_name do |t|
+ t.references :foo, :polymorphic => true, :index => true
+ end
+
+ assert connection.index_exists?(table_name, [:foo_id, :foo_type], :name => :index_testings_on_foo_id_and_foo_type)
+ end
+
+ def test_creates_index_for_existing_table
+ connection.create_table table_name
+ connection.change_table table_name do |t|
+ t.references :foo, :index => true
+ end
+
+ assert connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_does_not_create_index_for_existing_table
+ connection.create_table table_name
+ connection.change_table table_name do |t|
+ t.references :foo
+ end
+
+ refute connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_does_not_create_index_for_existing_table_explicit
+ connection.create_table table_name
+ connection.change_table table_name do |t|
+ t.references :foo, :index => false
+ end
+
+ refute connection.index_exists?(table_name, :foo_id, :name => :index_testings_on_foo_id)
+ end
+
+ def test_creates_polymorphic_index_for_existing_table
+ connection.create_table table_name
+ connection.change_table table_name do |t|
+ t.references :foo, :polymorphic => true, :index => true
+ end
+
+ assert connection.index_exists?(table_name, [:foo_id, :foo_type], :name => :index_testings_on_foo_id_and_foo_type)
+ end
+
+ end
+ end
+end