Clean up Registry decorator

lib/factory_girl.rb

@@ -8,7 +8,7 @@ require "factory_girl/strategy/create"
 require "factory_girl/strategy/attributes_for"
 require "factory_girl/strategy/stub"
 require "factory_girl/strategy/null"
-require 'factory_girl/strict_registry'
+require 'factory_girl/disallows_duplicates_registry'
 require 'factory_girl/registry'
 require 'factory_girl/null_factory'
 require 'factory_girl/null_object'
@@ -36,7 +36,7 @@ require 'factory_girl/version'
 
 module FactoryGirl
   def self.factories
-    @factories ||= StrictRegistry.new(Registry.new("Factory"))
+    @factories ||= DisallowsDuplicatesRegistry.new(Registry.new("Factory"))
   end
 
   def self.register_factory(factory)
@@ -51,7 +51,7 @@ module FactoryGirl
   end
 
   def self.sequences
-    @sequences ||= StrictRegistry.new(Registry.new("Sequence"))
+    @sequences ||= DisallowsDuplicatesRegistry.new(Registry.new("Sequence"))
   end
 
   def self.register_sequence(sequence)
@@ -66,7 +66,7 @@ module FactoryGirl
   end
 
   def self.traits
-    @traits ||= StrictRegistry.new(Registry.new("Trait"))
+    @traits ||= DisallowsDuplicatesRegistry.new(Registry.new("Trait"))
   end
 
   def self.register_trait(trait)

lib/factory_girl/disallows_duplicates_registry.rb

@@ -1,10 +1,10 @@
 module FactoryGirl
-  class StrictRegistry
+  class DisallowsDuplicatesRegistry
     def initialize(component)
       @component = component
     end
 
-    delegate :each, :registered?, :clear, to: :@component
+    delegate :clear, :each, :find, :[], :registered?, to: :@component
 
     def register(name, item)
       if registered?(name)
@@ -13,13 +13,5 @@ module FactoryGirl
         @component.register(name, item)
       end
     end
-
-    def find(name)
-      if registered?(name)
-        @component.find(name)
-      else
-        raise ArgumentError, "#{@component.name} not registered: #{name}"
-      end
-    end
   end
 end

lib/factory_girl/registry.rb

@@ -9,26 +9,30 @@ module FactoryGirl
       @items = {}
     end
 
-    def register(name, item)
-      @items[name.to_sym] = item
+    def clear
+      @items.clear
     end
 
-    def find(name)
-      @items[name.to_sym]
-    end
-
-    alias :[] :find
-
     def each(&block)
       @items.values.uniq.each(&block)
     end
 
+    def find(name)
+      if registered?(name)
+        @items[name.to_sym]
+      else
+        raise ArgumentError, "#{@name} not registered: #{name}"
+      end
+    end
+
+    alias :[] :find
+
+    def register(name, item)
+      @items[name.to_sym] = item
+    end
+
     def registered?(name)
       @items.key?(name.to_sym)
     end
-
-    def clear
-      @items.clear
-    end
   end
 end

lib/factory_girl/strategy_calculator.rb

@@ -19,8 +19,7 @@ module FactoryGirl
     end
 
     def strategy_name_to_object
-      FactoryGirl.strategy_by_name(@name_or_object) ||
-        raise("unrecognized method #{@name_or_object}")
+      FactoryGirl.strategy_by_name(@name_or_object)
     end
   end
 end

spec/factory_girl/disallows_duplicates_registry_spec.rb

@@ -0,0 +1,44 @@
+require "spec_helper"
+
+describe FactoryGirl::DisallowsDuplicatesRegistry do
+  let(:registry) { stub("registry", name: "Great thing", register: true, find: true, each: true, clear: true, registered?: true, :[] => true) }
+
+  subject { FactoryGirl::DisallowsDuplicatesRegistry.new(registry) }
+
+  it "delegates #each to the registry" do
+    block = -> {}
+    subject.each(block)
+    registry.should have_received(:each).with(block)
+  end
+
+  it "delegates #registered? to the registry" do
+    subject.registered?(:great_name)
+    registry.should have_received(:registered?).with(:great_name)
+  end
+
+  it "delegates #clear to the registry" do
+    subject.clear
+    registry.should have_received(:clear)
+  end
+
+  it "delegates #find to the registry" do
+    subject.find(:awesome)
+    registry.should have_received(:find).with(:awesome)
+  end
+
+  it "delegates #[] to the registry" do
+    subject[:awesome]
+    registry.should have_received(:[]).with(:awesome)
+  end
+
+  it "delegates #register to the registry when not registered" do
+    registry.stubs(registered?: false)
+    subject.register(:awesome, {})
+    registry.should have_received(:register).with(:awesome, {})
+  end
+
+  it "raises when attempting to #register a previously registered strategy" do
+    expect { subject.register(:same_name, {}) }.
+      to raise_error(FactoryGirl::DuplicateDefinitionError, "Great thing already registered: same_name")
+  end
+end

spec/factory_girl/registry_spec.rb

@@ -18,6 +18,10 @@ describe FactoryGirl::Registry do
     subject[:object_name].should == registered_object
   end
 
+  it "raises when an object cannot be found" do
+    expect { subject.find(:object_name) }.to raise_error(ArgumentError, "Great thing not registered: object_name")
+  end
+
   it "adds and returns the object registered" do
     subject.register(:object_name, registered_object).should == registered_object
   end

spec/factory_girl/strategy_calculator_spec.rb

@@ -18,6 +18,6 @@ describe FactoryGirl::StrategyCalculator do
   end
 
   it "raises when passing a bogus strategy" do
-    expect { FactoryGirl::StrategyCalculator.new(:bogus_strategy).strategy }.to raise_error "unrecognized method bogus_strategy"
+    expect { FactoryGirl::StrategyCalculator.new(:bogus_strategy).strategy }.to raise_error(ArgumentError, /bogus_strategy/)
   end
 end

spec/factory_girl/strict_registry_spec.rb

@@ -1,33 +0,0 @@
-require "spec_helper"
-
-describe FactoryGirl::StrictRegistry do
-  let(:registry) { stub("registry", name: "Great thing", register: true, find: true, each: true, registered?: true, clear: true) }
-
-  subject { FactoryGirl::StrictRegistry.new(registry) }
-
-  it "delegates #each to the registry" do
-    block = -> {}
-    subject.each(block)
-    registry.should have_received(:each).with(block)
-  end
-
-  it "delegates #registered? to the registry" do
-    subject.registered?(:great_name)
-    registry.should have_received(:registered?).with(:great_name)
-  end
-
-  it "delegates #clear to the registry" do
-    subject.clear
-    registry.should have_received(:clear)
-  end
-
-  it "raises when trying to find an unregistered object" do
-    registry.stubs(registered?: false)
-    expect { subject.find(:bogus) }.to raise_error(ArgumentError, "Great thing not registered: bogus")
-  end
-
-  it "doesn't allow a duplicate name" do
-    expect { 2.times { subject.register(:same_name, {}) } }.
-      to raise_error(FactoryGirl::DuplicateDefinitionError, "Great thing already registered: same_name")
-  end
-end