Ugh, Yaml has a <<: merge key. facepalm: true

spec/data/easy-circular-extends.yml

@@ -1,6 +0,0 @@
-a: 
-  extends: b
-  x: 50
-b:
-  extends: a
-  x: 150

spec/data/hard-circular-extends.yml

@@ -1,9 +0,0 @@
-a: 
-  extends: c
-  x: 50
-b:
-  extends: a
-  x: 150
-c: 
-  extends: b
-  y: 250

spec/data/multi-extends-single-entry.yml

@@ -1,14 +1,13 @@
-aunt: 
+aunt: &aunt
   a: 101
   b: 102
   c: 103
-uncle: 
+uncle: &uncle
   x: 104
   y: 105
   b: 106
 child:
-  extends: 
-    - uncle
-    - aunt
+  <<: *uncle
+  <<: *aunt
   a: 107
   x: 108

spec/data/multi-level-extends.yml

@@ -1,10 +1,10 @@
-frame: 
+frame: &frame
   x: 38
   y: 38
-title:
-  extends: frame
+title: &title
+  <<: *frame
   y: 50
   width: 100
-subtitle:
-  extends: title
+subtitle: 
+  <<: *title
   y: 150

spec/data/pre-extends.yml

@@ -1,7 +0,0 @@
-title:
-  extends: frame
-  y: 50
-  width: 100
-frame: 
-  x: 38
-  y: 38

spec/data/self-circular-extends.yml

@@ -1,3 +0,0 @@
-a: 
-  extends: a
-  x: 50

spec/data/single-extends.yml

@@ -1,7 +1,7 @@
-frame: 
+frame: &frame
   x: 38
   y: 38
 title:
-  extends: frame
+  <<: *frame
   y: 50
   width: 100

spec/data/single-level-multi-extends.yml

@@ -1,12 +1,12 @@
-frame: 
+frame: &frame
   x: 38
   y: 38
 title:
-  extends: frame
+  <<: *frame
   y: 50
   width: 100
 title2:
-  extends: frame
+  <<: *frame
   x: 75
   y: 150
   width: 150

spec/deck_spec.rb

@@ -68,24 +68,6 @@ describe Squib::Deck do
               'y' => 38, 
               },
             'title' => {
-              'extends' => 'frame',
-              'x' => 38, 
-              'y' => 50, 
-              'width' => 100,
-              }
-            }
-          )
-    end
-
-    it "applies the extends regardless of order" do
-      d = Squib::Deck.new(layout: test_file('pre-extends.yml')) 
-      expect(d.layout).to \
-        eq({'frame' => {
-              'x' => 38, 
-              'y' => 38, 
-              },
-            'title' => {
-              'extends' => 'frame',
               'x' => 38, 
               'y' => 50, 
               'width' => 100,
@@ -102,13 +84,11 @@ describe Squib::Deck do
               'y' => 38, 
               },
             'title' => {
-              'extends' => 'frame',
               'x' => 38, 
               'y' => 50, 
               'width' => 100,
               },
             'title2' => {
-              'extends' => 'frame',
               'x' => 75, 
               'y' => 150, 
               'width' => 150,
@@ -131,7 +111,6 @@ describe Squib::Deck do
               'b' => 106, 
               },
             'child' => {
-              'extends' => ['uncle','aunt'],
               'a' => 107, # my own
               'b' => 102, # from the younger aunt
               'c' => 103, # from aunt
@@ -150,13 +129,11 @@ describe Squib::Deck do
               'y' => 38, 
               },
             'title' => {
-              'extends' => 'frame',
               'x' => 38, 
               'y' => 50, 
               'width' => 100,
               },
             'subtitle' => {
-              'extends' => 'title',
               'x' => 38,
               'y' => 150, 
               'width' => 100,
@@ -165,24 +142,6 @@ describe Squib::Deck do
           )
     end
 
-    it "fails on a self-circular extends" do
-      file = test_file('self-circular-extends.yml')
-      expect { Squib::Deck.new(layout: file) }.to \
-        raise_error(RuntimeError, "Invalid layout: circular extends with 'a'")
-    end
-
-    it "fails on a easy-circular extends" do
-      file = test_file('easy-circular-extends.yml')
-      expect { Squib::Deck.new(layout: file) }.to \
-        raise_error(RuntimeError, "Invalid layout: circular extends with 'a'")
-    end
-
-    it "hard on a easy-circular extends" do
-      file = test_file('hard-circular-extends.yml')
-      expect { Squib::Deck.new(layout: file) }.to \
-        raise_error(RuntimeError, "Invalid layout: circular extends with 'a'")
-    end
-
   end
 
 end