X-Git-Url: https://projects.mako.cc/source/selectricity-live/blobdiff_plain/a12d4f62752f546f57421244e370e79965706ffb..f7aee769411a893c1059c529a220c0d25c72974f:/vendor/plugins/engines/lib/engines/testing_extensions.rb

diff --git a/vendor/plugins/engines/lib/engines/testing_extensions.rb b/vendor/plugins/engines/lib/engines/testing_extensions.rb
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+++ b/vendor/plugins/engines/lib/engines/testing_extensions.rb
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+# The Engines testing extensions enable developers to load fixtures into specific
+# tables irrespective of the name of the fixtures file. This work is heavily based on
+# patches made by Duane Johnson (canadaduane), viewable at
+# http://dev.rubyonrails.org/ticket/1911
+#
+# Engine developers should supply fixture files in the <engine>/test/fixtures directory
+# as normal. Within their tests, they should load the fixtures using the 'fixture' command
+# (rather than the normal 'fixtures' command). For example:
+#
+#   class UserTest < Test::Unit::TestCase
+#     fixture :users, :table_name => LoginEngine.config(:user_table), :class_name => "User"
+#    
+#     ...
+#
+# This will ensure that the fixtures/users.yml file will get loaded into the correct
+# table, and will use the correct model object class.
+
+
+
+# A FixtureGroup is a set of fixtures identified by a name.  Normally, this is the name of the
+# corresponding fixture filename.  For example, when you declare the use of fixtures in a
+# TestUnit class, like so:
+#   fixtures :users
+# you are creating a FixtureGroup whose name is 'users', and whose defaults are set such that the
+# +class_name+, +file_name+ and +table_name+ are guessed from the FixtureGroup's name.
+class FixtureGroup
+  attr_accessor :table_name, :class_name, :connection
+  attr_reader :group_name, :file_name
+
+  def initialize(file_name, optional_names = {})
+    self.file_name = file_name
+    self.group_name = optional_names[:group_name] || file_name
+    if optional_names[:table_name]
+      self.table_name = optional_names[:table_name]
+      self.class_name = optional_names[:class_name] || Inflector.classify(@table_name.to_s.gsub('.','_'))
+    elsif optional_names[:class_name]
+      self.class_name = optional_names[:class_name]
+      if Object.const_defined?(@class_name)
+        model_class = Object.const_get(@class_name)
+        self.table_name = ActiveRecord::Base.table_name_prefix + model_class.table_name + ActiveRecord::Base.table_name_suffix
+      end
+    end
+
+    # In case either :table_name or :class_name was not set:
+    self.table_name ||= ActiveRecord::Base.table_name_prefix + @group_name.to_s + ActiveRecord::Base.table_name_suffix
+    self.class_name ||= Inflector.classify(@table_name.to_s.gsub('.','_'))
+  end
+
+  def file_name=(name)
+    @file_name = name.to_s
+  end
+  
+  def group_name=(name)
+    @group_name = name.to_sym
+  end
+
+  def class_file_name
+    Inflector.underscore(@class_name)
+  end
+  
+  # Instantiate an array of FixtureGroup objects from an array of strings (table_names)
+  def self.array_from_names(names)
+    names.collect { |n| FixtureGroup.new(n) }
+  end
+  
+  def hash
+    @group_name.hash
+  end
+  
+  def eql?(other)
+    @group_name.eql? other.group_name
+  end
+end
+
+class Fixtures < YAML::Omap
+
+  def self.instantiate_fixtures(object, fixture_group_name, fixtures, load_instances=true)
+    old_logger_level = ActiveRecord::Base.logger.level
+    ActiveRecord::Base.logger.level = Logger::ERROR
+
+    # table_name.to_s.gsub('.','_') replaced by 'fixture_group_name'
+    object.instance_variable_set "@#{fixture_group_name}", fixtures
+    if load_instances
+      ActiveRecord::Base.silence do
+        fixtures.each do |name, fixture|
+          begin
+            if model = fixture.find
+              object.instance_variable_set "@#{name}", model
+            end
+          rescue FixtureClassNotFound
+            # Let's hope the developer has included it himself
+          end
+        end
+      end
+    end
+
+    ActiveRecord::Base.logger.level = old_logger_level
+  end
+
+  # this doesn't really need to be overridden...
+  def self.instantiate_all_loaded_fixtures(object, load_instances=true)
+    all_loaded_fixtures.each do |fixture_group_name, fixtures|
+      Fixtures.instantiate_fixtures(object, fixture_group_name, fixtures, load_instances)
+    end
+  end
+
+  def self.create_fixtures(fixtures_directory, *fixture_groups)
+    connection = block_given? ? yield : ActiveRecord::Base.connection
+    fixture_groups.flatten!
+    
+    # Backwards compatibility: Allow an array of table names to be passed in, but just use them
+    # to create an array of FixtureGroup objects
+    if not fixture_groups.empty? and fixture_groups.first.is_a?(String)
+      fixture_groups = FixtureGroup.array_from_names(fixture_groups)
+    end
+
+    ActiveRecord::Base.silence do
+      fixtures_map = {}
+      fixtures = fixture_groups.map do |group|
+        fixtures_map[group.group_name] = Fixtures.new(connection, fixtures_directory, group)
+      end 
+      # Make sure all refs to all_loaded_fixtures use group_name as hash index, not table_name
+      all_loaded_fixtures.merge! fixtures_map 
+
+      connection.transaction 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!)
+          fixture_groups.each do |fg|
+            connection.reset_pk_sequence!(fg.table_name)
+          end
+        end
+      end
+
+      return fixtures.size > 1 ? fixtures : fixtures.first
+    end
+  end
+
+ 
+  attr_accessor :connection, :fixtures_directory, :file_filter
+  attr_accessor :fixture_group
+ 
+  def initialize(connection, fixtures_directory, fixture_group, file_filter = DEFAULT_FILTER_RE)
+    @connection, @fixtures_directory = connection, fixtures_directory
+    @fixture_group = fixture_group
+    @file_filter = file_filter
+    read_fixture_files
+  end
+ 
+  def delete_existing_fixtures
+    @connection.delete "DELETE FROM #{@fixture_group.table_name}", 'Fixture Delete'
+  end
+ 
+  def insert_fixtures
+    values.each do |fixture|
+      @connection.execute "INSERT INTO #{@fixture_group.table_name} (#{fixture.key_list}) VALUES (#{fixture.value_list})", 'Fixture Insert'
+    end
+  end
+ 
+  private
+    def read_fixture_files
+      if File.file?(yaml_file_path)
+        read_yaml_fixture_files
+      elsif File.file?(csv_file_path)
+        read_csv_fixture_files
+      elsif File.file?(deprecated_yaml_file_path)
+        raise Fixture::FormatError, ".yml extension required: rename #{deprecated_yaml_file_path} to #{yaml_file_path}"
+      elsif File.directory?(single_file_fixtures_path)
+        read_standard_fixture_files
+      else
+        raise Fixture::FixtureError, "Couldn't find a yaml, csv or standard file to load at #{@fixtures_directory} (#{@fixture_group.file_name})."
+      end
+    end
+
+    def read_yaml_fixture_files
+      # YAML fixtures
+      begin
+        if yaml = YAML::load(erb_render(IO.read(yaml_file_path)))
+          yaml = yaml.value if yaml.respond_to?(:type_id) and yaml.respond_to?(:value)
+          yaml.each do |name, data|
+            self[name] = Fixture.new(data, fixture_group.class_name)
+          end
+        end
+      rescue Exception=>boom
+        raise Fixture::FormatError, "a YAML error occured 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  #{boom.class}: #{boom}"
+      end      
+    end
+
+    def read_csv_fixture_files
+      # CSV fixtures
+      reader = CSV::Reader.create(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["#{@fixture_group.class_file_name}_#{i+=1}"]= Fixture.new(data, @fixture_group.class_name)
+      end
+    end
+
+    def read_standard_fixture_files
+      # Standard fixtures
+      path = File.join(@fixtures_directory, @fixture_group.file_name)
+      Dir.entries(path).each do |file|
+        path = File.join(@fixtures_directory, @fixture_group.file_name, file)
+        if File.file?(path) and file !~ @file_filter
+          self[file] = Fixture.new(path, @fixture_group.class_name)
+        end
+      end
+    end
+ 
+    def yaml_file_path
+      fixture_path_with_extension ".yml"
+    end
+ 
+    def deprecated_yaml_file_path
+      fixture_path_with_extension ".yaml"
+    end
+ 
+    def csv_file_path
+      fixture_path_with_extension ".csv"
+    end
+    
+    def single_file_fixtures_path
+      fixture_path_with_extension ""
+    end
+ 
+    def fixture_path_with_extension(ext)
+      File.join(@fixtures_directory, @fixture_group.file_name + ext)
+    end 
+
+    def erb_render(fixture_content)
+      ERB.new(fixture_content).result
+    end
+
+end
+
+module Test #:nodoc:
+  module Unit #:nodoc:
+    class TestCase #:nodoc:
+      cattr_accessor :fixtures_directory
+      class_inheritable_accessor :fixture_groups
+      class_inheritable_accessor :fixture_table_names
+      class_inheritable_accessor :use_transactional_fixtures
+      class_inheritable_accessor :use_instantiated_fixtures   # true, false, or :no_instances
+      class_inheritable_accessor :pre_loaded_fixtures
+
+      self.fixture_groups = []
+      self.use_transactional_fixtures = false
+      self.use_instantiated_fixtures = true
+      self.pre_loaded_fixtures = false
+
+      @@already_loaded_fixtures = {}
+
+      # Backwards compatibility
+      def self.fixture_path=(path); self.fixtures_directory = path; end
+      def self.fixture_path; self.fixtures_directory; end
+      def fixture_group_names; fixture_groups.collect { |g| g.group_name }; end
+      def fixture_table_names; fixture_group_names; end
+
+      def self.fixture(file_name, options = {})
+        self.fixture_groups |= [FixtureGroup.new(file_name, options)]
+        require_fixture_classes
+        setup_fixture_accessors
+      end
+
+      def self.fixtures(*file_names)
+        self.fixture_groups |= FixtureGroup.array_from_names(file_names.flatten)
+        require_fixture_classes
+        setup_fixture_accessors
+      end
+
+      def self.require_fixture_classes(fixture_groups_override = nil)
+        (fixture_groups_override || fixture_groups).each do |group| 
+          begin
+            require group.class_file_name
+          rescue LoadError
+            # Let's hope the developer has included it himself
+          end
+        end
+      end
+
+      def self.setup_fixture_accessors(fixture_groups_override=nil)
+        (fixture_groups_override || fixture_groups).each do |group|
+          define_method(group.group_name) do |fixture, *optionals|
+            force_reload = optionals.shift
+            @fixture_cache[group.group_name] ||= Hash.new
+            @fixture_cache[group.group_name][fixture] = nil if force_reload
+            @fixture_cache[group.group_name][fixture] ||= @loaded_fixtures[group.group_name][fixture.to_s].find
+          end
+        end
+      end
+
+      private
+        def load_fixtures
+          @loaded_fixtures = {}
+          fixtures = Fixtures.create_fixtures(fixtures_directory, fixture_groups)
+          unless fixtures.nil?
+            if fixtures.instance_of?(Fixtures)
+              @loaded_fixtures[fixtures.fixture_group.group_name] = fixtures
+            else
+              fixtures.each { |f| @loaded_fixtures[f.fixture_group.group_name] = f }
+            end
+          end
+        end
+
+        def instantiate_fixtures
+          if pre_loaded_fixtures
+            raise RuntimeError, 'Load fixtures before instantiating them.' if Fixtures.all_loaded_fixtures.empty?
+            unless @@required_fixture_classes
+              groups = Fixtures.all_loaded_fixtures.values.collect { |f| f.group_name }
+              self.class.require_fixture_classes groups
+              @@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 |fixture_group_name, fixtures|
+              Fixtures.instantiate_fixtures(self, fixture_group_name, fixtures, load_instances?)
+            end
+          end
+        end
+    end
+  end
+end