spec/attributes_spec.rb in mongo_doc-0.3.1 vs spec/attributes_spec.rb in mongo_doc-0.3.2

@@ -1,6 +1,6 @@
-require File.expand_path(File.dirname(__FILE__) + '/spec_helper')
+require 'spec_helper'
 
 describe "MongoDoc::Attributes" do
   class AttributesTest
     include MongoDoc::Attributes
   end
@@ -10,37 +10,93 @@
     AttributesTest.new.should respond_to(:_id=)
   end
 
   context ".key" do
     class TestKeys
-      include MongoDoc::Document
+      include MongoDoc::Attributes
+
+      key :attr1, :attr2
     end
 
     it "adds its arguments to _keys" do
-      TestKeys.key :attr1, :attr2
       TestKeys._keys.should == [:attr1, :attr2]
     end
 
     describe "accessors" do
-      before do
-        TestKeys.key :attr1
-      end
-
       subject do
         TestKeys.new
       end
+
       it "has an attr1 reader" do
         should respond_to(:attr1)
       end
 
       it "has an attr1 writer" do
         should respond_to(:attr1=)
       end
     end
 
+    context "default values" do
+      class TestDefault
+        include MongoDoc::Attributes
+
+        key :with_default, :default => 'value'
+      end
+
+      let(:object) { TestDefault.new }
+
+      it "uses the default value" do
+        object.with_default.should == 'value'
+      end
+
+      it "only uses the default value once" do
+        object.with_default.should == 'value'
+        class << object
+          def _default_with_default
+            'other value'
+          end
+        end
+        object.with_default.should == 'value'
+      end
+
+      it "does not set the default value if the setter is invoked first" do
+        object.with_default = nil
+        object.with_default.should be_nil
+      end
+    end
+
+    context "specified type" do
+      class TestType
+        include MongoDoc::Attributes
+
+        key :birthdate, :type => Date
+      end
+
+      let(:object) { TestType.new }
+
+      it "does not call Type.cast_from_string when the set value is not a string" do
+        Date.should_not_receive :cast_from_string
+        object.birthdate = Date.today
+      end
+
+      context "when the accessor is set with a string" do
+        let(:date) { Date.today }
+
+        it "delegates to Type.cast_from_string to set the value" do
+          Date.should_receive(:cast_from_string).with(date.to_s)
+          object.birthdate = date.to_s
+        end
+
+        it "sets the value to the result of the case" do
+          object.birthdate = date.to_s
+          object.birthdate.should == date
+        end
+      end
+    end
+
     describe "used with inheritance" do
       class TestParent
-        include MongoDoc::Document
+        include MongoDoc::Attributes
 
         key :parent_attr
       end
 
       class TestChild < TestParent