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# frozen_string_literal: true
require "cases/helper"
module ActiveRecord
class Migration
class IndexTest < ActiveRecord::TestCase
attr_reader :connection, :table_name
def setup
super
@connection = ActiveRecord::Base.connection
@table_name = :testings
connection.create_table table_name do |t|
t.column :foo, :string, limit: 100
t.column :bar, :string, limit: 100
t.string :first_name
t.string :last_name, limit: 100
t.string :key, limit: 100
t.boolean :administrator
end
end
teardown do
connection.drop_table :testings rescue nil
ActiveRecord::Base.primary_key_prefix_type = nil
end
def test_rename_index
# keep the names short to make Oracle and similar behave
connection.add_index(table_name, [:foo], name: "old_idx")
connection.rename_index(table_name, "old_idx", "new_idx")
assert_not connection.index_name_exists?(table_name, "old_idx")
assert connection.index_name_exists?(table_name, "new_idx")
end
def test_rename_index_too_long
too_long_index_name = good_index_name + "x"
# keep the names short to make Oracle and similar behave
connection.add_index(table_name, [:foo], name: "old_idx")
e = assert_raises(ArgumentError) {
connection.rename_index(table_name, "old_idx", too_long_index_name)
}
assert_match(/too long; the limit is #{connection.allowed_index_name_length} characters/, e.message)
assert connection.index_name_exists?(table_name, "old_idx")
end
def test_double_add_index
connection.add_index(table_name, [:foo], name: "some_idx")
assert_raises(ArgumentError) {
connection.add_index(table_name, [:foo], name: "some_idx")
}
end
def test_remove_nonexistent_index
assert_raise(ArgumentError) { connection.remove_index(table_name, "no_such_index") }
end
def test_add_index_works_with_long_index_names
connection.add_index(table_name, "foo", name: good_index_name)
assert connection.index_name_exists?(table_name, good_index_name)
connection.remove_index(table_name, name: good_index_name)
end
def test_add_index_does_not_accept_too_long_index_names
too_long_index_name = good_index_name + "x"
e = assert_raises(ArgumentError) {
connection.add_index(table_name, "foo", name: too_long_index_name)
}
assert_match(/too long; the limit is #{connection.allowed_index_name_length} characters/, e.message)
assert_not connection.index_name_exists?(table_name, too_long_index_name)
connection.add_index(table_name, "foo", name: good_index_name)
end
def test_internal_index_with_name_matching_database_limit
good_index_name = "x" * connection.index_name_length
connection.add_index(table_name, "foo", name: good_index_name, internal: true)
assert connection.index_name_exists?(table_name, good_index_name)
connection.remove_index(table_name, name: good_index_name)
end
def test_index_symbol_names
connection.add_index table_name, :foo, name: :symbol_index_name
assert connection.index_exists?(table_name, :foo, name: :symbol_index_name)
connection.remove_index table_name, name: :symbol_index_name
assert_not connection.index_exists?(table_name, :foo, name: :symbol_index_name)
end
def test_index_exists
connection.add_index :testings, :foo
assert connection.index_exists?(:testings, :foo)
assert_not connection.index_exists?(:testings, :bar)
end
def test_index_exists_on_multiple_columns
connection.add_index :testings, [:foo, :bar]
assert connection.index_exists?(:testings, [:foo, :bar])
end
def test_index_exists_with_custom_name_checks_columns
connection.add_index :testings, [:foo, :bar], name: "my_index"
assert connection.index_exists?(:testings, [:foo, :bar], name: "my_index")
assert_not connection.index_exists?(:testings, [:foo], name: "my_index")
end
def test_valid_index_options
assert_raise ArgumentError do
connection.add_index :testings, :foo, unqiue: true
end
end
def test_unique_index_exists
connection.add_index :testings, :foo, unique: true
assert connection.index_exists?(:testings, :foo, unique: true)
end
def test_named_index_exists
connection.add_index :testings, :foo, name: "custom_index_name"
assert connection.index_exists?(:testings, :foo)
assert connection.index_exists?(:testings, :foo, name: "custom_index_name")
assert_not connection.index_exists?(:testings, :foo, name: "other_index_name")
end
def test_remove_named_index
connection.add_index :testings, :foo, name: "custom_index_name"
assert connection.index_exists?(:testings, :foo)
connection.remove_index :testings, :foo
assert_not connection.index_exists?(:testings, :foo)
end
def test_add_index_attribute_length_limit
connection.add_index :testings, [:foo, :bar], length: { foo: 10, bar: nil }
assert connection.index_exists?(:testings, [:foo, :bar])
end
def test_add_index
connection.add_index("testings", "last_name")
connection.remove_index("testings", "last_name")
connection.add_index("testings", ["last_name", "first_name"])
connection.remove_index("testings", column: ["last_name", "first_name"])
# Oracle adapter cannot have specified index name larger than 30 characters
# Oracle adapter is shortening index name when just column list is given
unless current_adapter?(:OracleAdapter)
connection.add_index("testings", ["last_name", "first_name"])
connection.remove_index("testings", name: :index_testings_on_last_name_and_first_name)
connection.add_index("testings", ["last_name", "first_name"])
connection.remove_index("testings", "last_name_and_first_name")
end
connection.add_index("testings", ["last_name", "first_name"])
connection.remove_index("testings", ["last_name", "first_name"])
connection.add_index("testings", ["last_name"], length: 10)
connection.remove_index("testings", "last_name")
connection.add_index("testings", ["last_name"], length: { last_name: 10 })
connection.remove_index("testings", ["last_name"])
connection.add_index("testings", ["last_name", "first_name"], length: 10)
connection.remove_index("testings", ["last_name", "first_name"])
connection.add_index("testings", ["last_name", "first_name"], length: { last_name: 10, first_name: 20 })
connection.remove_index("testings", ["last_name", "first_name"])
connection.add_index("testings", ["key"], name: "key_idx", unique: true)
connection.remove_index("testings", name: "key_idx", unique: true)
connection.add_index("testings", %w(last_name first_name administrator), name: "named_admin")
connection.remove_index("testings", name: "named_admin")
# Selected adapters support index sort order
if current_adapter?(:SQLite3Adapter, :Mysql2Adapter, :PostgreSQLAdapter)
connection.add_index("testings", ["last_name"], order: { last_name: :desc })
connection.remove_index("testings", ["last_name"])
connection.add_index("testings", ["last_name", "first_name"], order: { last_name: :desc })
connection.remove_index("testings", ["last_name", "first_name"])
connection.add_index("testings", ["last_name", "first_name"], order: { last_name: :desc, first_name: :asc })
connection.remove_index("testings", ["last_name", "first_name"])
connection.add_index("testings", ["last_name", "first_name"], order: :desc)
connection.remove_index("testings", ["last_name", "first_name"])
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_add_partial_index
connection.add_index("testings", "last_name", where: "first_name = 'john doe'")
assert connection.index_exists?("testings", "last_name")
connection.remove_index("testings", "last_name")
assert_not connection.index_exists?("testings", "last_name")
end
end
private
def good_index_name
"x" * connection.allowed_index_name_length
end
end
end
end
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