attributes_spec.rb in woyo-world-0.0.6

- old
+ new

@@ -15,18 +15,47 @@
     attrs.count.should eq 3
     attrs.all? { |a| a.is_a? Symbol }.should be_true
   end                       
 
   it 'hash of names and values can be retrieved for instance' do
-    attrs = AttrTest.new.attributes
-    attrs.should be_instance_of Hash
+    attr_test = AttrTest.new
+    attr_test.attributes.should be_instance_of Woyo::Attributes::AttributesHash
+    AttrTest.attributes.each do |attr|
+      attr_test.send(attr, attr.to_s.upcase)
+    end
+    attr_test.attributes.keys.should eq [ :attr1, :attr2, :attr3 ]
+    attr_test.attributes.values.should eq [ 'ATTR1', 'ATTR2', 'ATTR3' ]
   end
 
+  it 'hash of names and nil values can be retrieved for instance before populating' do
+    attr_test = AttrTest.new
+    attr_test.attributes.should be_instance_of Woyo::Attributes::AttributesHash
+    attr_test.attributes.keys.should eq [ :attr1, :attr2, :attr3 ]  
+    attr_test.attributes.values.should eq [ nil, nil, nil ]
+  end
+
+  it 'hash of names and default values can be retrieved for instance before populating' do
+    expect { 
+      class DefTest
+        include Woyo::Attributes
+        attributes one: 1, two: 2, three: proc { 3 } 
+      end
+    }.to_not raise_error
+    def_test = DefTest.new
+    def_test.attributes.keys.should eq [ :one, :two, :three ]  
+    def_test.attributes.values.should eq [ 1, 2, 3 ]
+  end
+
+  it 'have convenience accessor :names for :keys' do
+    attr_test = AttrTest.new
+    attr_test.attributes.names.should eq [ :attr1, :attr2, :attr3 ]  
+  end
+
   it 'can be written via method with =' do
     attr_test = AttrTest.new
     AttrTest.attributes.each do |attr|
-      attr_test.send(attr, attr.to_s.upcase)
+      attr_test.send("#{attr}=", attr.to_s.upcase)
     end
     attr_test.attributes.count.should eq AttrTest.attributes.count
     attr_test.attributes.each do |name,value|
       value.should eq name.to_s.upcase
     end
@@ -60,17 +89,28 @@
         attributes :attr4, :attr5, :attr6
       end
     }.to_not raise_error
     AttrTest.attributes.count.should eq 6
     attr_test = AttrTest.new
-    # populate attributes
     AttrTest.attributes.each do |attr|
       attr_test.send(attr, attr.to_s.upcase)
     end
     attr_test.attributes.count.should eq 6
   end
 
+  it 'can be defined with "attribute"' do
+    expect {
+      class AttrTest
+        attribute :open
+      end
+    }.to_not raise_error
+    attr_test = AttrTest.new
+    attr_test.open.should be_nil
+    attr_test.open = true
+    attr_test.open.should be_true
+  end
+      
   it 'can have a default value' do
     expect { 
       class AttrTest
         attributes attr_with_array___default: [ 1, 2, 3 ]
         attributes attr_with_hash____default: { a: 1, b: 2, c: 3 }
@@ -139,9 +179,323 @@
         end
       end
     }.to_not raise_error
     attr_test = AttrTest.new
     attr_test.attr_with_lambda_default.should eq "okay"
+  end
+
+  context 'that are boolean' do
+
+    context 'have convenient instance accessors' do
+
+      before :all do
+        expect {
+          class BooleanAttrTest
+            include Woyo::Attributes
+            attribute open: true
+            attribute light: false 
+          end
+        }.to_not raise_error
+      end
+
+      it '#attr?' do
+        attr_test = BooleanAttrTest.new
+        attr_test.open.should eq true
+        attr_test.open?.should eq true
+      end
+
+      it '#attr!' do
+        attr_test = BooleanAttrTest.new
+        attr_test.open = false
+        attr_test.open.should eq false
+        attr_test.open!.should eq true
+        attr_test.open.should eq true
+      end
+
+      it '#is? :attr' do
+        attr_test = BooleanAttrTest.new
+        attr_test.is?(:open).should eq true
+        attr_test.open = false
+        attr_test.is?(:open).should eq false
+      end
+
+      it '#is :attr' do
+        attr_test = BooleanAttrTest.new
+        attr_test.light.should eq false
+        attr_test.is(:light)
+        attr_test.light.should eq true
+      end
+    end
+
+    context 'have class accessor ::is' do
+
+      # I was confused here, this may not be needed as a class method at all!!!
+      
+      it 'that defines new attribute with true default' do 
+        expect {
+          class BooleanIsTest1
+            include Woyo::Attributes
+            is :attr1
+          end
+        }.to_not raise_error
+        attr_test = BooleanIsTest1.new
+        attr_test.attr1.should eq true 
+      end
+
+      it 'that sets true default for existing attribute' do
+        expect {
+          class BooleanIsTest2
+            include Woyo::Attributes
+            attribute :attr2
+            is :attr2
+          end
+        }.to_not raise_error
+        attr_test = BooleanIsTest2.new
+        attr_test.attr2.should eq true 
+      end
+
+      it 'that changes default to true for existing attribute' do
+        expect {
+          class BooleanIsTest3
+            include Woyo::Attributes
+            attribute :attr3 => false
+            is :attr3
+          end
+        }.to_not raise_error
+        attr_test = BooleanIsTest3.new
+        attr_test.attr3.should eq true 
+      end
+
+      it 'that works for attribute in BooleanGroup' do
+        expect {
+          class BooleanIsTest4
+            include Woyo::Attributes
+            group! :temp, :hot, :warm, :cool, :cold
+            # :hot is true by default
+            is :cold
+            # :cold is now true
+          end
+        }.to_not raise_error
+        attr_test = BooleanIsTest4.new
+        attr_test.hot.should eq false
+        attr_test.warm.should eq false
+        attr_test.cool.should eq false
+        attr_test.cold.should eq true
+      end
+
+    end
+
+  end
+
+  context 'can be re-defined' do
+
+    it 'without duplication' do
+      expect {
+        class AttrReDef1
+          include Woyo::Attributes
+          attribute :attr1
+        end
+        class AttrReDef1
+          attribute :attr1
+        end
+      }.to_not raise_error
+      AttrReDef1.attributes.count.should eq 1
+      AttrReDef1.attributes.should eq [:attr1] 
+      attr_rd1 = AttrReDef1.new
+      attr_rd1.attr1.should be_nil
+    end
+
+    it 'to set default' do
+      expect {
+        class AttrReDef2
+          include Woyo::Attributes
+          attribute :attr2
+        end
+        class AttrReDef2
+          attribute attr2: 'two'
+        end
+      }.to_not raise_error
+      AttrReDef2.attributes.count.should eq 1
+      AttrReDef2.attributes.should eq [:attr2] 
+      attr_rd2 = AttrReDef2.new
+      attr_rd2.attr2.should eq 'two'
+    end
+
+    it 'to change default'  do
+      expect {
+        class AttrReDef3
+          include Woyo::Attributes
+          attribute attr3: '333'
+        end
+        class AttrReDef3
+          attribute attr3: 'three'
+        end
+      }.to_not raise_error
+      AttrReDef3.attributes.count.should eq 1
+      AttrReDef3.attributes.should eq [:attr3] 
+      attr_rd3 = AttrReDef3.new
+      attr_rd3.attr3.should eq 'three'
+    end
+
+  end
+
+  context 'groups' do
+
+    before :all do
+      class AT
+        include Woyo::Attributes
+        group :stooges, :larry, :curly, :moe
+        group :cars,    :mustang, :ferarri, :mini 
+      end
+      @at = AT.new
+    end
+
+    it 'can be listed for class' do
+      groups = AT.groups
+      groups.should be_instance_of Hash
+      groups.count.should eq 2
+      groups.keys.should eq [ :stooges, :cars ]
+      groups[:stooges].should eq [ :larry, :curly, :moe ]
+      groups[:cars].should eq [ :mustang, :ferarri, :mini ]
+    end
+
+    it 'have convenience accessor :names for :keys' do
+      @at.stooges.names.should eq [ :larry, :curly, :moe ]  
+    end
+
+    it 'names and nil values can be retrieved from instance without populating' do
+      @at.stooges.should be_instance_of Woyo::Attributes::Group
+      @at.stooges.count.should eq 3
+      @at.stooges.names.should eq [ :larry, :curly, :moe ] 
+      @at.stooges.values.should eq [ nil, nil, nil ] 
+    end
+
+    it 'names and default values can be retrieved from instance without populating' do
+      expect { 
+        class GroupDefTest
+          include Woyo::Attributes
+          group :numbers, one: 1, two: 2, three: proc { 3 } 
+        end
+      }.to_not raise_error
+      def_test = GroupDefTest.new
+      groups = def_test.groups
+      groups.should be_instance_of Hash
+      groups.count.should eq 1
+      groups.names.should eq [ :numbers ]
+      groups[:numbers].should be_instance_of Woyo::Attributes::Group
+      groups[:numbers].names.should eq [ :one, :two, :three ]
+      groups[:numbers].values.should eq [ 1, 2, 3 ]
+      def_test.numbers.names.should eq [ :one, :two, :three ]  
+      def_test.numbers.values.should eq [ 1, 2, 3 ]
+    end
+
+    it 'members can be accessed via group' do
+      @at.stooges[:curly].should eq nil
+      @at.stooges[:curly] = 'bald'
+      @at.stooges[:curly].should eq 'bald'
+    end
+
+    it 'members are also attributes' do
+      all_attrs = [ :larry, :curly, :moe, :mustang, :ferarri, :mini ]  
+      @at.attributes.keys.should eq all_attrs 
+      all_attrs.each do |attr|
+        @at.should respond_to attr
+      end
+    end
+
+    it 'members are attributes' do
+      @at.stooges[:moe] = 'knucklehead'
+      @at.stooges[:moe].should eq 'knucklehead'
+      @at.moe.should eq 'knucklehead' 
+    end
+
+    it 'attributes are members' do
+      @at.ferarri = 'fast'
+      @at.ferarri.should eq 'fast'
+      @at.cars[:ferarri].should eq 'fast'
+    end
+
+  end
+
+  context 'boolean groups' do
+
+    before :all do
+      class ExGroupTest
+        include Woyo::Attributes
+        group! :temp, :hot, :warm, :cool, :cold
+        group! :light, :dark, :dim, :bright
+      end
+    end
+
+    it 'are listed for a class' do
+      groups = ExGroupTest.boolean_groups
+      groups.should be_instance_of Hash
+      groups.count.should eq 2
+      groups.keys.should eq [ :temp, :light ]
+      groups[:temp].should eq [ :hot, :warm, :cool, :cold ] 
+      groups[:light].should eq [ :dark, :dim, :bright ]
+    end
+
+    it 'accessor returns BooleanGroup instance' do
+      egt = ExGroupTest.new
+      egt.temp.should be_instance_of Woyo::Attributes::BooleanGroup
+    end
+
+    it 'first member is true, rest are false' do
+      egt = ExGroupTest.new
+      egt.light[:dark].should eq true
+      egt.light[:dim].should eq false
+      egt.light[:bright].should eq false
+    end
+
+    it 'making group member true affects member attributes' do
+      egt = ExGroupTest.new
+      egt.temp[:cold] = true
+      egt.cold.should be true
+      egt.cool.should be false
+      egt.warm.should be false
+      egt.hot.should be false
+    end
+
+    it 'making attribute true affects group members' do
+      egt = ExGroupTest.new
+      egt.cold = true
+      egt.light[:cold].should be true
+      egt.light[:cool].should be false
+      egt.light[:warm].should be false
+      egt.light[:hot].should be false
+    end
+
+  end
+
+  context 'assigned a Hash as a value' do
+
+    before :all do
+      class AttrHashTest
+        include Woyo::Attributes
+        attributes :reaction, :hot, :cold
+      end
+      @aht = AttrHashTest.new
+    end
+
+    it 'accepts the hash as a value' do
+      expect { @aht.reaction hot: 'Sweat', cold: 'Shiver' }.to_not raise_error
+    end
+
+    it 'returns the value of the first key that evaluates as a true attribute' do
+      @aht.cold = true
+      @aht.reaction.should eq 'Shiver'
+      @aht.hot = true
+      @aht.reaction.should eq 'Sweat'
+    end
+
+    it 'otherwise it returns the hash' do
+      reactions = { :hot => 'Sweat', :cold => 'Shiver' }
+      @aht.cold = false
+      @aht.hot = false
+      @aht.reaction.should eq reactions
+    end
+
   end
 
 end
 