uuid_entity_spec.rb in kamerling-0.0.3

- old
+ new
@@ -1,35 +1,63 @@
 require_relative '../spec_helper'
+require_relative '../../lib/kamerling/uuid_entity'
 
-module Kamerling describe UUIDEntity do
-  describe '.from_h' do
-    it 'deserialises the object from a Hash' do
-      Trivial = Class.new(UUIDEntity) { attribute :question, Symbol }
-      Trivial.from_h(question: :answer).question.must_equal :answer
+module Kamerling
+  describe UUIDEntity do
+    describe '.attrs' do
+      it 'allows defining attributes in a key → class manner' do
+        person = Class.new(UUIDEntity) { attrs name: String, born: Integer }
+        person.attribute_set.map(&:name).must_equal %i(uuid name born)
+      end
     end
-  end
 
-  describe '.new' do
-    it 'creates a class with an UUID property defaulting to a random UUID' do
-      AttrLess = Class.new UUIDEntity
-      AttrLess.new.uuid.must_match(/\A\h{8}-\h{4}-\h{4}-\h{4}-\h{12}\z/)
-      AttrLess.new.uuid.wont_equal AttrLess.new.uuid
+    describe '.defaults' do
+      it 'allows defining attribute defaults' do
+        song = Class.new(UUIDEntity) do
+          attrs title: String, genre: Symbol
+          defaults genre: :ragga
+        end
+        song.new.genre.must_equal :ragga
+      end
     end
-  end
 
-  describe '#==' do
-    it 'reports UUID-based euqality' do
-      Actor = Class.new(UUIDEntity) { attribute :name, Symbol }
-      Actor.new(name: :laurel).wont_equal Actor.new name: :laurel
-      uuid = UUID.new
-      Actor.new(name: :laurel, uuid: uuid)
-        .must_equal Actor.new name: :hardy, uuid: uuid
+    describe '.new' do
+      it 'creates a class with an UUID property defaulting to a random UUID' do
+        attr_less = Class.new(UUIDEntity)
+        attr_less.new.uuid.must_match(/\A\h{8}-\h{4}-\h{4}-\h{4}-\h{12}\z/)
+        attr_less.new.uuid.wont_equal attr_less.new.uuid
+      end
+
+      it 'deserialises the object from a Hash' do
+        trivial = Class.new(UUIDEntity) { attrs question: Symbol }
+        trivial.new(question: :answer).question.must_equal :answer
+      end
     end
-  end
 
-  describe '#to_h' do
-    it 'serialises the object to a Hash' do
-      Hashble = Class.new(UUIDEntity) { attribute :param, Symbol }
-      Hashble.new(param: :val).to_h.must_equal param: :val, uuid: any(String)
+    describe '#==' do
+      it 'reports UUID-based euqality' do
+        actor = Class.new(UUIDEntity) { attrs name: Symbol }
+        actor.new(name: :laurel).wont_equal actor.new(name: :laurel)
+        uuid = UUID.new
+        actor.new(name: :laurel, uuid: uuid)
+          .must_equal actor.new(name: :hardy, uuid: uuid)
+      end
     end
+
+    describe '#to_h' do
+      it 'serialises the object to a Hash' do
+        hashble = Class.new(UUIDEntity) { attrs param: Symbol }
+        hashble.new(param: :val).to_h.must_equal param: :val, uuid: any(String)
+      end
+
+      it 'serialises related UUIDEntities' do
+        child  = Class.new(UUIDEntity) { attrs name: String }
+        parent = Class.new(UUIDEntity) { attrs child: child, name: String }
+        zosia  = child.new(name: 'Zosia')
+        marta  = parent.new(child: zosia, name: 'Marta')
+        zosia_hash = { name: 'Zosia', uuid: zosia.uuid }
+        marta_hash = { child: zosia_hash, name: 'Marta', uuid: marta.uuid }
+        marta.to_h.must_equal marta_hash
+      end
+    end
   end
-end end
+end