require 'erb' require 'yaml' require 'csv' require 'active_support/test_case' if RUBY_VERSION < '1.9' module YAML #:nodoc: class Omap #:nodoc: def keys; map { |k, v| k } end def values; map { |k, v| v } end end end end if defined? ActiveRecord class FixtureClassNotFound < ActiveRecord::ActiveRecordError #:nodoc: end else class FixtureClassNotFound < StandardError #:nodoc: end end # Fixtures are a way of organizing data that you want to test against; in short, sample data. They come in 3 flavors: # # 1. YAML fixtures # 2. CSV fixtures # 3. Single-file fixtures # # = YAML fixtures # # This type of fixture is in YAML format and the preferred default. YAML is a file format which describes data structures # in a non-verbose, human-readable format. It ships with Ruby 1.8.1+. # # Unlike single-file fixtures, YAML fixtures are stored in a single file per model, which are placed in the directory appointed # by ActiveSupport::TestCase.fixture_path=(path) (this is automatically configured for Rails, so you can just # put your files in /test/fixtures/). The fixture file ends with the .yml file extension (Rails example: # /test/fixtures/web_sites.yml). The format of a YAML fixture file looks like this: # # rubyonrails: # id: 1 # name: Ruby on Rails # url: http://www.rubyonrails.org # # google: # id: 2 # name: Google # url: http://www.google.com # # This YAML fixture file includes two fixtures. Each YAML fixture (ie. record) is given a name and is followed by an # indented list of key/value pairs in the "key: value" format. Records are separated by a blank line for your viewing # pleasure. # # Note that YAML fixtures are unordered. If you want ordered fixtures, use the omap YAML type. See http://yaml.org/type/omap.html # for the specification. You will need ordered fixtures when you have foreign key constraints on keys in the same table. # This is commonly needed for tree structures. Example: # # --- !omap # - parent: # id: 1 # parent_id: NULL # title: Parent # - child: # id: 2 # parent_id: 1 # title: Child # # = CSV fixtures # # Fixtures can also be kept in the Comma Separated Value format. Akin to YAML fixtures, CSV fixtures are stored # in a single file, but instead end with the .csv file extension # (Rails example: /test/fixtures/web_sites.csv). # # The format of this type of fixture file is much more compact than the others, but also a little harder to read by us # humans. The first line of the CSV file is a comma-separated list of field names. The rest of the file is then comprised # of the actual data (1 per line). Here's an example: # # id, name, url # 1, Ruby On Rails, http://www.rubyonrails.org # 2, Google, http://www.google.com # # Should you have a piece of data with a comma character in it, you can place double quotes around that value. If you # need to use a double quote character, you must escape it with another double quote. # # Another unique attribute of the CSV fixture is that it has *no* fixture name like the other two formats. Instead, the # fixture names are automatically generated by deriving the class name of the fixture file and adding an incrementing # number to the end. In our example, the 1st fixture would be called "web_site_1" and the 2nd one would be called # "web_site_2". # # Most databases and spreadsheets support exporting to CSV format, so this is a great format for you to choose if you # have existing data somewhere already. # # = Single-file fixtures # # This type of fixture was the original format for Active Record that has since been deprecated in favor of the YAML and CSV formats. # Fixtures for this format are created by placing text files in a sub-directory (with the name of the model) to the directory # appointed by ActiveSupport::TestCase.fixture_path=(path) (this is automatically configured for Rails, so you can just # put your files in /test/fixtures// -- # like /test/fixtures/web_sites/ for the WebSite model). # # Each text file placed in this directory represents a "record". Usually these types of fixtures are named without # extensions, but if you are on a Windows machine, you might consider adding .txt as the extension. Here's what the # above example might look like: # # web_sites/google # web_sites/yahoo.txt # web_sites/ruby-on-rails # # The file format of a standard fixture is simple. Each line is a property (or column in db speak) and has the syntax # of "name => value". Here's an example of the ruby-on-rails fixture above: # # id => 1 # name => Ruby on Rails # url => http://www.rubyonrails.org # # = Using Fixtures # # Since fixtures are a testing construct, we use them in our unit and functional tests. There are two ways to use the # fixtures, but first let's take a look at a sample unit test: # # require 'web_site' # # class WebSiteTest < ActiveSupport::TestCase # def test_web_site_count # assert_equal 2, WebSite.count # end # end # # As it stands, unless we pre-load the web_site table in our database with two records, this test will fail. Here's the # easiest way to add fixtures to the database: # # ... # class WebSiteTest < ActiveSupport::TestCase # fixtures :web_sites # add more by separating the symbols with commas # ... # # By adding a "fixtures" method to the test case and passing it a list of symbols (only one is shown here though), we trigger # the testing environment to automatically load the appropriate fixtures into the database before each test. # To ensure consistent data, the environment deletes the fixtures before running the load. # # In addition to being available in the database, the fixtures are also loaded into a hash stored in an instance variable # of the test case. It is named after the symbol... so, in our example, there would be a hash available called # @web_sites. This is where the "fixture name" comes into play. # # On top of that, each record is automatically "found" (using Model.find(id)) and placed in the instance variable of its name. # So for the YAML fixtures, we'd get @rubyonrails and @google, which could be interrogated using regular Active Record semantics: # # # test if the object created from the fixture data has the same attributes as the data itself # def test_find # assert_equal @web_sites["rubyonrails"]["name"], @rubyonrails.name # end # # As seen above, the data hash created from the YAML fixtures would have @web_sites["rubyonrails"]["url"] return # "http://www.rubyonrails.org" and @web_sites["google"]["name"] would return "Google". The same fixtures, but loaded # from a CSV fixture file, would be accessible via @web_sites["web_site_1"]["name"] == "Ruby on Rails" and have the individual # fixtures available as instance variables @web_site_1 and @web_site_2. # # If you do not wish to use instantiated fixtures (usually for performance reasons) there are two options. # # - to completely disable instantiated fixtures: # self.use_instantiated_fixtures = false # # - to keep the fixture instance (@web_sites) available, but do not automatically 'find' each instance: # self.use_instantiated_fixtures = :no_instances # # Even if auto-instantiated fixtures are disabled, you can still access them # by name via special dynamic methods. Each method has the same name as the # model, and accepts the name of the fixture to instantiate: # # fixtures :web_sites # # def test_find # assert_equal "Ruby on Rails", web_sites(:rubyonrails).name # end # # = Dynamic fixtures with ERb # # Some times you don't care about the content of the fixtures as much as you care about the volume. In these cases, you can # mix ERb in with your YAML or CSV fixtures to create a bunch of fixtures for load testing, like: # # <% for i in 1..1000 %> # fix_<%= i %>: # id: <%= i %> # name: guy_<%= 1 %> # <% end %> # # This will create 1000 very simple YAML fixtures. # # Using ERb, you can also inject dynamic values into your fixtures with inserts like <%= Date.today.strftime("%Y-%m-%d") %>. # This is however a feature to be used with some caution. The point of fixtures are that they're stable units of predictable # sample data. If you feel that you need to inject dynamic values, then perhaps you should reexamine whether your application # is properly testable. Hence, dynamic values in fixtures are to be considered a code smell. # # = Transactional fixtures # # TestCases can use begin+rollback to isolate their changes to the database instead of having to delete+insert for every test case. # They can also turn off auto-instantiation of fixture data since the feature is costly and often unused. # # class FooTest < ActiveSupport::TestCase # self.use_transactional_fixtures = true # self.use_instantiated_fixtures = false # # fixtures :foos # # def test_godzilla # assert !Foo.find(:all).empty? # Foo.destroy_all # assert Foo.find(:all).empty? # end # # def test_godzilla_aftermath # assert !Foo.find(:all).empty? # end # end # # If you preload your test database with all fixture data (probably in the Rakefile task) and use transactional fixtures, # then you may omit all fixtures declarations in your test cases since all the data's already there and every case rolls back its changes. # # In order to use instantiated fixtures with preloaded data, set +self.pre_loaded_fixtures+ to true. This will provide # access to fixture data for every table that has been loaded through fixtures (depending on the value of +use_instantiated_fixtures+) # # When *not* to use transactional fixtures: # 1. You're testing whether a transaction works correctly. Nested transactions don't commit until all parent transactions commit, # particularly, the fixtures transaction which is begun in setup and rolled back in teardown. Thus, you won't be able to verify # the results of your transaction until Active Record supports nested transactions or savepoints (in progress). # 2. Your database does not support transactions. Every Active Record database supports transactions except MySQL MyISAM. # Use InnoDB, MaxDB, or NDB instead. # # = Advanced YAML Fixtures # # YAML fixtures that don't specify an ID get some extra features: # # * Stable, autogenerated ID's # * Label references for associations (belongs_to, has_one, has_many) # * HABTM associations as inline lists # * Autofilled timestamp columns # * Fixture label interpolation # * Support for YAML defaults # # == Stable, autogenerated ID's # # Here, have a monkey fixture: # # george: # id: 1 # name: George the Monkey # # reginald: # id: 2 # name: Reginald the Pirate # # Each of these fixtures has two unique identifiers: one for the database # and one for the humans. Why don't we generate the primary key instead? # Hashing each fixture's label yields a consistent ID: # # george: # generated id: 503576764 # name: George the Monkey # # reginald: # generated id: 324201669 # name: Reginald the Pirate # # Active Record looks at the fixture's model class, discovers the correct # primary key, and generates it right before inserting the fixture # into the database. # # The generated ID for a given label is constant, so we can discover # any fixture's ID without loading anything, as long as we know the label. # # == Label references for associations (belongs_to, has_one, has_many) # # Specifying foreign keys in fixtures can be very fragile, not to # mention difficult to read. Since Active Record can figure out the ID of # any fixture from its label, you can specify FK's by label instead of ID. # # === belongs_to # # Let's break out some more monkeys and pirates. # # ### in pirates.yml # # reginald: # id: 1 # name: Reginald the Pirate # monkey_id: 1 # # ### in monkeys.yml # # george: # id: 1 # name: George the Monkey # pirate_id: 1 # # Add a few more monkeys and pirates and break this into multiple files, # and it gets pretty hard to keep track of what's going on. Let's # use labels instead of ID's: # # ### in pirates.yml # # reginald: # name: Reginald the Pirate # monkey: george # # ### in monkeys.yml # # george: # name: George the Monkey # pirate: reginald # # Pow! All is made clear. Active Record reflects on the fixture's model class, # finds all the +belongs_to+ associations, and allows you to specify # a target *label* for the *association* (monkey: george) rather than # a target *id* for the *FK* (monkey_id: 1). # # ==== Polymorphic belongs_to # # Supporting polymorphic relationships is a little bit more complicated, since # Active Record needs to know what type your association is pointing at. Something # like this should look familiar: # # ### in fruit.rb # # belongs_to :eater, :polymorphic => true # # ### in fruits.yml # # apple: # id: 1 # name: apple # eater_id: 1 # eater_type: Monkey # # Can we do better? You bet! # # apple: # eater: george (Monkey) # # Just provide the polymorphic target type and Active Record will take care of the rest. # # === has_and_belongs_to_many # # Time to give our monkey some fruit. # # ### in monkeys.yml # # george: # id: 1 # name: George the Monkey # pirate_id: 1 # # ### in fruits.yml # # apple: # id: 1 # name: apple # # orange: # id: 2 # name: orange # # grape: # id: 3 # name: grape # # ### in fruits_monkeys.yml # # apple_george: # fruit_id: 1 # monkey_id: 1 # # orange_george: # fruit_id: 2 # monkey_id: 1 # # grape_george: # fruit_id: 3 # monkey_id: 1 # # Let's make the HABTM fixture go away. # # ### in monkeys.yml # # george: # name: George the Monkey # pirate: reginald # fruits: apple, orange, grape # # ### in fruits.yml # # apple: # name: apple # # orange: # name: orange # # grape: # name: grape # # Zap! No more fruits_monkeys.yml file. We've specified the list of fruits # on George's fixture, but we could've just as easily specified a list # of monkeys on each fruit. As with +belongs_to+, Active Record reflects on # the fixture's model class and discovers the +has_and_belongs_to_many+ # associations. # # == Autofilled timestamp columns # # If your table/model specifies any of Active Record's # standard timestamp columns (+created_at+, +created_on+, +updated_at+, +updated_on+), # they will automatically be set to Time.now. # # If you've set specific values, they'll be left alone. # # == Fixture label interpolation # # The label of the current fixture is always available as a column value: # # geeksomnia: # name: Geeksomnia's Account # subdomain: $LABEL # # Also, sometimes (like when porting older join table fixtures) you'll need # to be able to get ahold of the identifier for a given label. ERB # to the rescue: # # george_reginald: # monkey_id: <%= Fixtures.identify(:reginald) %> # pirate_id: <%= Fixtures.identify(:george) %> # # == Support for YAML defaults # # You probably already know how to use YAML to set and reuse defaults in # your database.yml file. You can use the same technique in your fixtures: # # DEFAULTS: &DEFAULTS # created_on: <%= 3.weeks.ago.to_s(:db) %> # # first: # name: Smurf # <<: *DEFAULTS # # second: # name: Fraggle # <<: *DEFAULTS # # Any fixture labeled "DEFAULTS" is safely ignored. class Fixtures < (RUBY_VERSION < '1.9' ? YAML::Omap : Hash) DEFAULT_FILTER_RE = /\.ya?ml$/ @@all_cached_fixtures = {} def self.reset_cache(connection = nil) connection ||= ActiveRecord::Base.connection @@all_cached_fixtures[connection.object_id] = {} end def self.cache_for_connection(connection) @@all_cached_fixtures[connection.object_id] ||= {} @@all_cached_fixtures[connection.object_id] end def self.fixture_is_cached?(connection, table_name) cache_for_connection(connection)[table_name] end def self.cached_fixtures(connection, keys_to_fetch = nil) if keys_to_fetch fixtures = cache_for_connection(connection).values_at(*keys_to_fetch) else fixtures = cache_for_connection(connection).values end fixtures.size > 1 ? fixtures : fixtures.first end def self.cache_fixtures(connection, fixtures_map) cache_for_connection(connection).update(fixtures_map) end def self.instantiate_fixtures(object, table_name, fixtures, load_instances = true) object.instance_variable_set "@#{table_name.to_s.gsub('.','_')}", fixtures if load_instances ActiveRecord::Base.silence do fixtures.each do |name, fixture| begin object.instance_variable_set "@#{name}", fixture.find rescue FixtureClassNotFound nil end end end end end def self.instantiate_all_loaded_fixtures(object, load_instances = true) all_loaded_fixtures.each do |table_name, fixtures| Fixtures.instantiate_fixtures(object, table_name, fixtures, load_instances) end end cattr_accessor :all_loaded_fixtures self.all_loaded_fixtures = {} def self.create_fixtures(fixtures_directory, table_names, class_names = {}) table_names = [table_names].flatten.map { |n| n.to_s } connection = block_given? ? yield : ActiveRecord::Base.connection table_names_to_fetch = table_names.reject { |table_name| fixture_is_cached?(connection, table_name) } unless table_names_to_fetch.empty? ActiveRecord::Base.silence do connection.disable_referential_integrity do fixtures_map = {} fixtures = table_names_to_fetch.map do |table_name| fixtures_map[table_name] = Fixtures.new(connection, File.split(table_name.to_s).last, class_names[table_name.to_sym], File.join(fixtures_directory, table_name.to_s)) end all_loaded_fixtures.update(fixtures_map) connection.transaction(connection.open_transactions.zero?) do fixtures.reverse.each { |fixture| fixture.delete_existing_fixtures } fixtures.each { |fixture| fixture.insert_fixtures } # Cap primary key sequences to max(pk). if connection.respond_to?(:reset_pk_sequence!) table_names.each do |table_name| connection.reset_pk_sequence!(table_name) end end end cache_fixtures(connection, fixtures_map) end end end cached_fixtures(connection, table_names) end # Returns a consistent identifier for +label+. This will always # be a positive integer, and will always be the same for a given # label, assuming the same OS, platform, and version of Ruby. def self.identify(label) label.to_s.hash.abs end attr_reader :table_name, :name def initialize(connection, table_name, class_name, fixture_path, file_filter = DEFAULT_FILTER_RE) @connection, @table_name, @fixture_path, @file_filter = connection, table_name, fixture_path, file_filter @name = table_name # preserve fixture base name @class_name = class_name || (ActiveRecord::Base.pluralize_table_names ? @table_name.singularize.camelize : @table_name.camelize) @table_name = "#{ActiveRecord::Base.table_name_prefix}#{@table_name}#{ActiveRecord::Base.table_name_suffix}" @table_name = class_name.table_name if class_name.respond_to?(:table_name) @connection = class_name.connection if class_name.respond_to?(:connection) read_fixture_files end def delete_existing_fixtures @connection.delete "DELETE FROM #{@connection.quote_table_name(table_name)}", 'Fixture Delete' end def insert_fixtures now = ActiveRecord::Base.default_timezone == :utc ? Time.now.utc : Time.now now = now.to_s(:db) # allow a standard key to be used for doing defaults in YAML if is_a?(Hash) delete('DEFAULTS') else delete(assoc('DEFAULTS')) end # track any join tables we need to insert later habtm_fixtures = Hash.new do |h, habtm| h[habtm] = HabtmFixtures.new(@connection, habtm.options[:join_table], nil, nil) end each do |label, fixture| row = fixture.to_hash if model_class && model_class < ActiveRecord::Base # fill in timestamp columns if they aren't specified and the model is set to record_timestamps if model_class.record_timestamps timestamp_column_names.each do |name| row[name] = now unless row.key?(name) end end # interpolate the fixture label row.each do |key, value| row[key] = label if value == "$LABEL" end # generate a primary key if necessary if has_primary_key_column? && !row.include?(primary_key_name) row[primary_key_name] = Fixtures.identify(label) end # If STI is used, find the correct subclass for association reflection reflection_class = if row.include?(inheritance_column_name) row[inheritance_column_name].constantize rescue model_class else model_class end reflection_class.reflect_on_all_associations.each do |association| case association.macro when :belongs_to # Do not replace association name with association foreign key if they are named the same fk_name = (association.options[:foreign_key] || "#{association.name}_id").to_s if association.name.to_s != fk_name && value = row.delete(association.name.to_s) if association.options[:polymorphic] if value.sub!(/\s*\(([^\)]*)\)\s*$/, "") target_type = $1 target_type_name = (association.options[:foreign_type] || "#{association.name}_type").to_s # support polymorphic belongs_to as "label (Type)" row[target_type_name] = target_type end end row[fk_name] = Fixtures.identify(value) end when :has_and_belongs_to_many if (targets = row.delete(association.name.to_s)) targets = targets.is_a?(Array) ? targets : targets.split(/\s*,\s*/) join_fixtures = habtm_fixtures[association] targets.each do |target| join_fixtures["#{label}_#{target}"] = Fixture.new( { association.primary_key_name => row[primary_key_name], association.association_foreign_key => Fixtures.identify(target) }, nil) end end end end end @connection.insert_fixture(fixture, @table_name) end # insert any HABTM join tables we discovered habtm_fixtures.values.each do |fixture| fixture.delete_existing_fixtures fixture.insert_fixtures end end private class HabtmFixtures < ::Fixtures #:nodoc: def read_fixture_files; end end def model_class unless defined?(@model_class) @model_class = if @class_name.nil? || @class_name.is_a?(Class) @class_name else @class_name.constantize rescue nil end end @model_class end def primary_key_name @primary_key_name ||= model_class && model_class.primary_key end def has_primary_key_column? @has_primary_key_column ||= model_class && primary_key_name && model_class.columns.find { |c| c.name == primary_key_name } end def timestamp_column_names @timestamp_column_names ||= %w(created_at created_on updated_at updated_on).select do |name| column_names.include?(name) end end def inheritance_column_name @inheritance_column_name ||= model_class && model_class.inheritance_column end def column_names @column_names ||= @connection.columns(@table_name).collect(&:name) end def read_fixture_files if File.file?(yaml_file_path) read_yaml_fixture_files elsif File.file?(csv_file_path) read_csv_fixture_files end end def read_yaml_fixture_files yaml_string = "" Dir["#{@fixture_path}/**/*.yml"].select { |f| test(?f, f) }.each do |subfixture_path| yaml_string << IO.read(subfixture_path) end yaml_string << IO.read(yaml_file_path) if yaml = parse_yaml_string(yaml_string) # If the file is an ordered map, extract its children. yaml_value = if yaml.respond_to?(:type_id) && yaml.respond_to?(:value) yaml.value else [yaml] end yaml_value.each do |fixture| raise Fixture::FormatError, "Bad data for #{@class_name} fixture named #{fixture}" unless fixture.respond_to?(:each) fixture.each do |name, data| unless data raise Fixture::FormatError, "Bad data for #{@class_name} fixture named #{name} (nil)" end self[name] = Fixture.new(data, model_class) end end end end def read_csv_fixture_files reader = CSV.parse(erb_render(IO.read(csv_file_path))) header = reader.shift i = 0 reader.each do |row| data = {} row.each_with_index { |cell, j| data[header[j].to_s.strip] = cell.to_s.strip } self["#{@class_name.to_s.underscore}_#{i+=1}"] = Fixture.new(data, model_class) end end def yaml_file_path "#{@fixture_path}.yml" end def csv_file_path @fixture_path + ".csv" end def yaml_fixtures_key(path) File.basename(@fixture_path).split(".").first end def parse_yaml_string(fixture_content) YAML::load(erb_render(fixture_content)) rescue => error raise Fixture::FormatError, "a YAML error occurred parsing #{yaml_file_path}. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html\nThe exact error was:\n #{error.class}: #{error}" end def erb_render(fixture_content) ERB.new(fixture_content).result end end class Fixture #:nodoc: include Enumerable class FixtureError < StandardError #:nodoc: end class FormatError < FixtureError #:nodoc: end attr_reader :model_class def initialize(fixture, model_class) @fixture = fixture @model_class = model_class.is_a?(Class) ? model_class : model_class.constantize rescue nil end def class_name @model_class.name if @model_class end def each @fixture.each { |item| yield item } end def [](key) @fixture[key] end def to_hash @fixture end def key_list columns = @fixture.keys.collect{ |column_name| ActiveRecord::Base.connection.quote_column_name(column_name) } columns.join(", ") end def value_list list = @fixture.inject([]) do |fixtures, (key, value)| col = model_class.columns_hash[key] if model_class.respond_to?(:ancestors) && model_class.ancestors.include?(ActiveRecord::Base) fixtures << ActiveRecord::Base.connection.quote(value, col).gsub('[^\]\\n', "\n").gsub('[^\]\\r', "\r") end list * ', ' end def find if model_class model_class.find(self[model_class.primary_key]) else raise FixtureClassNotFound, "No class attached to find." end end end module ActiveRecord module TestFixtures def self.included(base) base.class_eval do setup :setup_fixtures teardown :teardown_fixtures superclass_delegating_accessor :fixture_path superclass_delegating_accessor :fixture_table_names superclass_delegating_accessor :fixture_class_names superclass_delegating_accessor :use_transactional_fixtures superclass_delegating_accessor :use_instantiated_fixtures # true, false, or :no_instances superclass_delegating_accessor :pre_loaded_fixtures self.fixture_table_names = [] self.use_transactional_fixtures = false self.use_instantiated_fixtures = true self.pre_loaded_fixtures = false self.fixture_class_names = {} end base.extend ClassMethods end module ClassMethods def set_fixture_class(class_names = {}) self.fixture_class_names = self.fixture_class_names.merge(class_names) end def fixtures(*table_names) if table_names.first == :all table_names = Dir["#{fixture_path}/*.yml"] + Dir["#{fixture_path}/*.csv"] table_names.map! { |f| File.basename(f).split('.')[0..-2].join('.') } else table_names = table_names.flatten.map { |n| n.to_s } end self.fixture_table_names |= table_names require_fixture_classes(table_names) setup_fixture_accessors(table_names) end def try_to_load_dependency(file_name) require_dependency file_name rescue LoadError => e # Let's hope the developer has included it himself # Let's warn in case this is a subdependency, otherwise # subdependency error messages are totally cryptic if ActiveRecord::Base.logger ActiveRecord::Base.logger.warn("Unable to load #{file_name}, underlying cause #{e.message} \n\n #{e.backtrace.join("\n")}") end end def require_fixture_classes(table_names = nil) (table_names || fixture_table_names).each do |table_name| file_name = table_name.to_s file_name = file_name.singularize if ActiveRecord::Base.pluralize_table_names try_to_load_dependency(file_name) end end def setup_fixture_accessors(table_names = nil) table_names = [table_names] if table_names && !table_names.respond_to?(:each) (table_names || fixture_table_names).each do |table_name| table_name = table_name.to_s.tr('.', '_') define_method(table_name) do |*fixtures| force_reload = fixtures.pop if fixtures.last == true || fixtures.last == :reload @fixture_cache[table_name] ||= {} instances = fixtures.map do |fixture| @fixture_cache[table_name].delete(fixture) if force_reload if @loaded_fixtures[table_name][fixture.to_s] @fixture_cache[table_name][fixture] ||= @loaded_fixtures[table_name][fixture.to_s].find else raise StandardError, "No fixture with name '#{fixture}' found for table '#{table_name}'" end end instances.size == 1 ? instances.first : instances end end end def uses_transaction(*methods) @uses_transaction = [] unless defined?(@uses_transaction) @uses_transaction.concat methods.map(&:to_s) end def uses_transaction?(method) @uses_transaction = [] unless defined?(@uses_transaction) @uses_transaction.include?(method.to_s) end end def use_transactional_fixtures? use_transactional_fixtures && !self.class.uses_transaction?(method_name) end def setup_fixtures return unless defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank? if pre_loaded_fixtures && !use_transactional_fixtures raise RuntimeError, 'pre_loaded_fixtures requires use_transactional_fixtures' end @fixture_cache = {} @@already_loaded_fixtures ||= {} # Load fixtures once and begin transaction. if use_transactional_fixtures? if @@already_loaded_fixtures[self.class] @loaded_fixtures = @@already_loaded_fixtures[self.class] else load_fixtures @@already_loaded_fixtures[self.class] = @loaded_fixtures end ActiveRecord::Base.connection.increment_open_transactions ActiveRecord::Base.connection.begin_db_transaction # Load fixtures for every test. else Fixtures.reset_cache @@already_loaded_fixtures[self.class] = nil load_fixtures end # Instantiate fixtures for every test if requested. instantiate_fixtures if use_instantiated_fixtures end def teardown_fixtures return unless defined?(ActiveRecord) && !ActiveRecord::Base.configurations.blank? unless use_transactional_fixtures? Fixtures.reset_cache end # Rollback changes if a transaction is active. if use_transactional_fixtures? && ActiveRecord::Base.connection.open_transactions != 0 ActiveRecord::Base.connection.rollback_db_transaction ActiveRecord::Base.connection.decrement_open_transactions end ActiveRecord::Base.clear_active_connections! end private def load_fixtures @loaded_fixtures = {} fixtures = Fixtures.create_fixtures(fixture_path, fixture_table_names, fixture_class_names) unless fixtures.nil? if fixtures.instance_of?(Fixtures) @loaded_fixtures[fixtures.name] = fixtures else fixtures.each { |f| @loaded_fixtures[f.name] = f } end end end # for pre_loaded_fixtures, only require the classes once. huge speed improvement @@required_fixture_classes = false def instantiate_fixtures if pre_loaded_fixtures raise RuntimeError, 'Load fixtures before instantiating them.' if Fixtures.all_loaded_fixtures.empty? unless @@required_fixture_classes self.class.require_fixture_classes Fixtures.all_loaded_fixtures.keys @@required_fixture_classes = true end Fixtures.instantiate_all_loaded_fixtures(self, load_instances?) else raise RuntimeError, 'Load fixtures before instantiating them.' if @loaded_fixtures.nil? @loaded_fixtures.each do |table_name, fixtures| Fixtures.instantiate_fixtures(self, table_name, fixtures, load_instances?) end end end def load_instances? use_instantiated_fixtures != :no_instances end end end