query methods are better than initialize

lib/pacer-neo4j/rspec.rb

@@ -1,34 +1,41 @@
 class Rspec::GraphRunner
   module Neo4j
-    def initialize(*graphs)
+    def all(usage_style = :read_write, indices = true, &block)
       super
-      if use_graph?('neo4j')
-        path1 = File.expand_path('tmp/spec.neo4j')
-        dir = Pathname.new(path1)
-        dir.rmtree if dir.exist?
-        @neo_graph = Pacer.neo4j(path1)
+      neo4j(usage_style, indices, &block)
+    end
+
+    def neo4j(usage_style = :read_write, indices = true, &block)
+      for_graph('neo4j', usage_style, indices, true, neo_graph, neo_graph2, neo_graph_no_indices, block)
+    end
 
-        path2 = File.expand_path('tmp/spec.neo4j.2')
-        dir = Pathname.new(path2)
-        dir.rmtree if dir.exist?
-        @neo_graph2 = Pacer.neo4j(path2)
+    protected
 
-        path3 = File.expand_path('tmp/spec_no_indices.neo4j')
-        dir = Pathname.new(path3)
-        dir.rmtree if dir.exist?
-        @neo_graph_no_indices = Pacer.neo4j(path3)
-        @neo_graph_no_indices.drop_index :vertices
-        @neo_graph_no_indices.drop_index :edges
-      end
+    def neo_graph
+      return @neo_graph if @neo_graph
+      path1 = File.expand_path('tmp/spec.neo4j')
+      dir = Pathname.new(path1)
+      dir.rmtree if dir.exist?
+      @neo_graph = Pacer.neo4j(path1)
     end
 
-    def all(usage_style = :read_write, indices = true, &block)
-      super
-      neo4j(usage_style, indices, &block)
+    def neo_graph2
+      return @neo_graph2 if @neo_graph2
+      path2 = File.expand_path('tmp/spec.neo4j.2')
+      dir = Pathname.new(path2)
+      dir.rmtree if dir.exist?
+      @neo_graph2 = Pacer.neo4j(path2)
     end
 
-    def neo4j(usage_style = :read_write, indices = true, &block)
-      for_graph('neo4j', usage_style, indices, true, @neo_graph, @neo_graph2, @neo_graph_no_indices, block)
+    def neo_graph_no_indices
+      return @neo_graph_no_indices if @neo_graph_no_indices
+      path3 = File.expand_path('tmp/spec_no_indices.neo4j')
+      dir = Pathname.new(path3)
+      dir.rmtree if dir.exist?
+      @neo_graph_no_indices = Pacer.neo4j(path3)
+      @neo_graph_no_indices.drop_index :vertices
+      @neo_graph_no_indices.drop_index :edges
+      @neo_graph_no_indices
     end
   end