move desribe blocks into specs to allow subject to be setup in spec

spec/support/shared_examples/json_format.rb

@@ -1,7 +1,5 @@
 shared_examples 'it has symmetric as_json and to_json methods' do
-  describe '#as_json' do
-    it 'should return a json representation of the object as a ruby hash' do
-      expect(subject.as_json).to eq JSON.parse(subject.to_json)
-    end
+  it 'should return a json representation of the object as a ruby hash' do
+    expect(subject.as_json).to eq JSON.parse(subject.to_json)
   end
 end

spec/unit/iiif/presentation/annotation_spec.rb

@@ -4,5 +4,7 @@
     it_behaves_like 'it has the appropriate methods for abstract_resource_only_keys'
   end
 
-  it_behaves_like 'it has symmetric as_json and to_json methods'
+  describe "#{described_class}.as_json" do
+    it_behaves_like 'it has symmetric as_json and to_json methods'
+  end
 end

spec/unit/iiif/presentation/collection_spec.rb

@@ -49,7 +49,9 @@
   describe '#validate' do
   end
 
-  it_behaves_like 'it has symmetric as_json and to_json methods'
+  describe '#as_json' do
+    it_behaves_like 'it has symmetric as_json and to_json methods'
+  end
 end
 
 

spec/unit/iiif/presentation/image_resource_spec.rb

@@ -10,4 +10,23 @@
     it_behaves_like 'it has the appropriate methods for integer-only keys'
   end
 
+  let(:fixed_values) do
+    {
+      "@context" => "http://iiif.io/api/presentation/2/context.json",
+      "@id" => "http://www.example.org/iiif/image",
+      "label" => "p. 1",
+      "height" => 1000,
+      "width" => 750,
+    }
+  end
+
+  # describe '#as_json' do
+  #   # must have @id, width, height etc to pass validation in to_ordered_hash
+  #   # could also use to_oredered_hash(force: true) to skip validation
+  #   subject do
+  #     IIIF::Presentation::Canvas.new(fixed_values)
+  #   end
+  #   it_behaves_like 'it has symmetric as_json and to_json methods'
+  # end
+  it_behaves_like 'it has symmetric as_json and to_json methods'
 end

spec/unit/iiif/presentation/layer_spec.rb

@@ -34,5 +34,12 @@
     it_behaves_like 'it has the appropriate methods for any-type keys'
   end
 
+  describe "#{described_class}.as_json" do
+    subject do
+      IIIF::Presentation::Layer.new(fixed_values)
+    end
+    it_behaves_like 'it has symmetric as_json and to_json methods'
+  end
+
 end
 

spec/unit/iiif/service_spec.rb

@@ -25,7 +25,8 @@ def self.singleton_class?
     end
   end
 
-
-  it_behaves_like 'it has symmetric as_json and to_json methods'
+  describe '#as_json' do
+    it_behaves_like 'it has symmetric as_json and to_json methods'
+  end
 
 end