From 6e80ae52f3f0dc252be8e2d8a526173571bee453 Mon Sep 17 00:00:00 2001
From: Nikita Sokolov <faucct@gmail.com>
Date: Fri, 16 Jun 2017 13:17:51 +0300
Subject: [PATCH] Expose Disposable::Twin#build_twin via
 Disposable::Twin::Collection#new

---
 lib/disposable/twin/collection.rb | 5 +++++
 test/twin/collection_test.rb      | 9 +++++++++
 2 files changed, 14 insertions(+)

diff --git a/lib/disposable/twin/collection.rb b/lib/disposable/twin/collection.rb
index cbdd9bc..3081739 100644
--- a/lib/disposable/twin/collection.rb
+++ b/lib/disposable/twin/collection.rb
@@ -55,6 +55,11 @@ def save # only gets called when Collection::Semantics mixed in.
         destroy!
       end
 
+      # Twins a model
+      def new(model)
+        @twinner.(model)
+      end
+
       module Changed
         # FIXME: this should not be included automatically, as Changed is a feature.
         def changed?
diff --git a/test/twin/collection_test.rb b/test/twin/collection_test.rb
index 2cd7f35..6452daf 100644
--- a/test/twin/collection_test.rb
+++ b/test/twin/collection_test.rb
@@ -201,6 +201,15 @@ class Album < Disposable::Twin
       twin.songs.deleted.must_equal []
     end
   end
+
+  describe "#new" do
+    let (:album) { Album.create() }
+
+    it do
+      twin = Twin::Album.new(album)
+      twin.songs.new(Song.new).must_be_instance_of Twin::Song
+    end
+  end
 end