From 1011ca49495eb1f48d43694bfbb2a96951fd45ba Mon Sep 17 00:00:00 2001
From: Grzegorz Bizon <grzesiek.bizon@gmail.com>
Date: Thu, 11 Jan 2018 10:47:49 +0100
Subject: [PATCH] Add a DSL evaluator to QA base factory class

---
 qa/qa/factory/base.rb | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/qa/qa/factory/base.rb b/qa/qa/factory/base.rb
index 00851a7bece..3e5227ea426 100644
--- a/qa/qa/factory/base.rb
+++ b/qa/qa/factory/base.rb
@@ -1,6 +1,12 @@
+require 'forwardable'
+
 module QA
   module Factory
     class Base
+      extend SingleForwardable
+
+      def_delegators :evaluator, :dependency, :dependencies
+
       def fabricate!(*_args)
         raise NotImplementedError
       end
@@ -17,16 +23,25 @@ module QA
         end
       end
 
-      def self.dependencies
-        @dependencies ||= {}
+      def self.evaluator
+        @evaluator ||= Factory::Base::DSL.new(self)
       end
 
-      def self.dependency(factory, as:, &block)
-        as.tap do |name|
-          class_eval { attr_accessor name }
+      class DSL
+        attr_reader :dependencies
 
-          Dependency::Signature.new(factory, block).tap do |signature|
-            dependencies.store(name, signature)
+        def initialize(base)
+          @base = base
+          @dependencies = {}
+        end
+
+        def dependency(factory, as:, &block)
+          as.tap do |name|
+            @base.class_eval { attr_accessor name }
+
+            Dependency::Signature.new(factory, block).tap do |signature|
+              dependencies.store(name, signature)
+            end
           end
         end
       end