spec/structure/json_spec.rb in structure-0.7.1 vs spec/structure/json_spec.rb in structure-0.8.0

@@ -1,31 +1,67 @@
 require 'spec_helper'
 
-describe Structure do
-  context "when `structure/json' is required" do
-    let(:person) { Person.new(:name => 'Joe', :age => 28, :website => 'http://example.com') }
-    let(:json) { '{"json_class":"Person","name":"Joe","age":28,"website":"http://example.com","friends":[]}' }
+shared_examples_for "a JSON interface" do
+  it "dumps to JSON" do
+    person.to_json.should eql json
+  end
 
+  it "loads from JSON" do
+    JSON.parse(json).should == person
+  end
+
+  context "when nesting other structures" do
     before do
+      person.friends = [Person.new(:name => 'Jane')]
+    end
+
+    it "loads them into their corresponding structures" do
+      json = person.to_json
+      JSON.parse(json).friends.first.should be_a Person
+    end
+  end
+end
+
+describe Structure do
+  let(:person) { Person.new(:name => 'Joe') }
+  let(:json) { '{"json_class":"Person","name":"Joe","age":null,"friends":[]}' }
+
+  context "without Active Support" do
+    before(:all) do
       require 'structure/json'
     end
 
-    it "dumps to JSON" do
-      person.to_json.should eql json
+    it_behaves_like "a JSON interface"
+  end
+
+  context "with Active Support" do
+    before(:all) do
+      require 'active_support/ordered_hash'
+      require 'active_support/json'
+      load 'structure/json.rb'
     end
 
-    it "loads from JSON" do
-      JSON.parse(json).should == person
+    after(:all) do
+      Object.send(:remove_const, :ActiveSupport)
     end
 
-    context "when nesting other structures" do
-      before do
-        person.friends = [Person.new(:name => 'Jane')]
+    it_behaves_like "a JSON interface"
+
+    describe "#as_json" do
+      it "returns a hash" do
+        person.as_json.should be_a Hash
       end
 
-      it "loads them into their corresponding structures" do
-        json = person.to_json
-        JSON.parse(json).friends.first.should be_a Person
+      it "selects a subset of attributes" do
+        as_json = person.as_json(:only => :name)
+        as_json.should have_key :name
+        as_json.should_not have_key :age
+      end
+
+      it "rejects a subset of attributes" do
+        as_json = person.as_json(:except => :name)
+        as_json.should_not have_key :name
+        as_json.should have_key :age
       end
     end
   end
 end