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# encoding: utf-8
require "cases/helper"
require 'active_record/base'
require 'active_record/connection_adapters/postgresql_adapter'
class PostgresqlHstoreTest < ActiveRecord::TestCase
class Hstore < ActiveRecord::Base
self.table_name = 'hstores'
store_accessor :settings, :language, :timezone
end
def setup
@connection = ActiveRecord::Base.connection
unless @connection.extension_enabled?('hstore')
@connection.enable_extension 'hstore'
@connection.commit_db_transaction
end
@connection.reconnect!
@connection.transaction do
@connection.create_table('hstores') do |t|
t.hstore 'tags', :default => ''
t.hstore 'settings'
end
end
@column = Hstore.columns.find { |c| c.name == 'tags' }
end
def teardown
@connection.execute 'drop table if exists hstores'
end
if ActiveRecord::Base.connection.supports_extensions?
def test_hstore_included_in_extensions
assert @connection.respond_to?(:extensions), "connection should have a list of extensions"
assert @connection.extensions.include?('hstore'), "extension list should include hstore"
end
def test_disable_enable_hstore
assert @connection.extension_enabled?('hstore')
@connection.disable_extension 'hstore'
assert_not @connection.extension_enabled?('hstore')
@connection.enable_extension 'hstore'
assert @connection.extension_enabled?('hstore')
ensure
# Restore column(s) dropped by `drop extension hstore cascade;`
load_schema
end
def test_column
assert_equal :hstore, @column.type
end
def test_change_table_supports_hstore
@connection.transaction do
@connection.change_table('hstores') do |t|
t.hstore 'users', default: ''
end
Hstore.reset_column_information
column = Hstore.columns.find { |c| c.name == 'users' }
assert_equal :hstore, column.type
raise ActiveRecord::Rollback # reset the schema change
end
ensure
Hstore.reset_column_information
end
def test_hstore_migration
hstore_migration = Class.new(ActiveRecord::Migration) do
def change
change_table("hstores") do |t|
t.hstore :keys
end
end
end
hstore_migration.new.suppress_messages do
hstore_migration.migrate(:up)
assert_includes @connection.columns(:hstores).map(&:name), "keys"
hstore_migration.migrate(:down)
assert_not_includes @connection.columns(:hstores).map(&:name), "keys"
end
end
def test_cast_value_on_write
x = Hstore.new tags: {"bool" => true, "number" => 5}
assert_equal({"bool" => "true", "number" => "5"}, x.tags)
x.save
assert_equal({"bool" => "true", "number" => "5"}, x.reload.tags)
end
def test_type_cast_hstore
assert @column
data = "\"1\"=>\"2\""
hash = @column.class.string_to_hstore data
assert_equal({'1' => '2'}, hash)
assert_equal({'1' => '2'}, @column.type_cast(data))
assert_equal({}, @column.type_cast(""))
assert_equal({'key'=>nil}, @column.type_cast('key => NULL'))
assert_equal({'c'=>'}','"a"'=>'b "a b'}, @column.type_cast(%q(c=>"}", "\"a\""=>"b \"a b")))
end
def test_with_store_accessors
x = Hstore.new(language: "fr", timezone: "GMT")
assert_equal "fr", x.language
assert_equal "GMT", x.timezone
x.save!
x = Hstore.first
assert_equal "fr", x.language
assert_equal "GMT", x.timezone
x.language = "de"
x.save!
x = Hstore.first
assert_equal "de", x.language
assert_equal "GMT", x.timezone
end
def test_gen1
assert_equal(%q(" "=>""), @column.class.hstore_to_string({' '=>''}))
end
def test_gen2
assert_equal(%q(","=>""), @column.class.hstore_to_string({','=>''}))
end
def test_gen3
assert_equal(%q("="=>""), @column.class.hstore_to_string({'='=>''}))
end
def test_gen4
assert_equal(%q(">"=>""), @column.class.hstore_to_string({'>'=>''}))
end
def test_parse1
assert_equal({'a'=>nil,'b'=>nil,'c'=>'NuLl','null'=>'c'}, @column.type_cast('a=>null,b=>NuLl,c=>"NuLl",null=>c'))
end
def test_parse2
assert_equal({" " => " "}, @column.type_cast("\\ =>\\ "))
end
def test_parse3
assert_equal({"=" => ">"}, @column.type_cast("==>>"))
end
def test_parse4
assert_equal({"=a"=>"q=w"}, @column.type_cast('\=a=>q=w'))
end
def test_parse5
assert_equal({"=a"=>"q=w"}, @column.type_cast('"=a"=>q\=w'))
end
def test_parse6
assert_equal({"\"a"=>"q>w"}, @column.type_cast('"\"a"=>q>w'))
end
def test_parse7
assert_equal({"\"a"=>"q\"w"}, @column.type_cast('\"a=>q"w'))
end
def test_rewrite
@connection.execute "insert into hstores (tags) VALUES ('1=>2')"
x = Hstore.first
x.tags = { '"a\'' => 'b' }
assert x.save!
end
def test_select
@connection.execute "insert into hstores (tags) VALUES ('1=>2')"
x = Hstore.first
assert_equal({'1' => '2'}, x.tags)
end
def test_select_multikey
@connection.execute "insert into hstores (tags) VALUES ('1=>2,2=>3')"
x = Hstore.first
assert_equal({'1' => '2', '2' => '3'}, x.tags)
end
def test_create
assert_cycle('a' => 'b', '1' => '2')
end
def test_nil
assert_cycle('a' => nil)
end
def test_quotes
assert_cycle('a' => 'b"ar', '1"foo' => '2')
end
def test_whitespace
assert_cycle('a b' => 'b ar', '1"foo' => '2')
end
def test_backslash
assert_cycle('a\\b' => 'b\\ar', '1"foo' => '2')
end
def test_comma
assert_cycle('a, b' => 'bar', '1"foo' => '2')
end
def test_arrow
assert_cycle('a=>b' => 'bar', '1"foo' => '2')
end
def test_quoting_special_characters
assert_cycle('ca' => 'cà', 'ac' => 'àc')
end
def test_multiline
assert_cycle("a\nb" => "c\nd")
end
def test_update_all
hstore = Hstore.create! tags: { "one" => "two" }
Hstore.update_all tags: { "three" => "four" }
assert_equal({ "three" => "four" }, hstore.reload.tags)
Hstore.update_all tags: { }
assert_equal({ }, hstore.reload.tags)
end
end
private
def assert_cycle(hash)
# test creation
x = Hstore.create!(:tags => hash)
x.reload
assert_equal(hash, x.tags)
# test updating
x = Hstore.create!(:tags => {})
x.tags = hash
x.save!
x.reload
assert_equal(hash, x.tags)
end
end
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