added embed_one association matcher

CHANGELOG.md

@@ -1,5 +1,6 @@
 ### 0.0.3
 
++ Added `embed_one(association_name)` association matcher.
 + Added `have_and_belong_to_many(association_name)` association matcher.
 + Added `validate_associated(association_name) validation matcher'.
 + Added `accept_with(value)` chain matcher to `validate_acceptance_of`.

README.md

@@ -135,9 +135,11 @@ See the following examples:
       describe Person do
         subject { Person }
 
-        it { must have_one(:account).of_type(Account) }
+        it { must have_one(:account) }
         it { must have_many(:pets).of_type(Pet) }
-        it { must have_and_belong_to_many(:friends).of_type(Person) }
+        it { must have_and_belong_to_many(:friends) }
+
+        it { must embed_one(:profile) }
       end
 
       describe Pet do

lib/matchers/associations/associations.rb

@@ -5,6 +5,7 @@ module Associations
       HAS_MANY = Mongoid::Relations::Referenced::Many
       HAS_AND_BELONGS_TO_MANY = Mongoid::Relations::Referenced::ManyToMany
       BELONGS_TO = Mongoid::Relations::Referenced::In
+      EMBEDS_ONE = Mongoid::Relations::Embedded::One
 
       class HaveAssociationMatcher
         include Helpers
@@ -91,6 +92,8 @@ def type_description(type = nil, passive = true)
             (passive ? "reference" : "references") << " and referenced in many"
           when BELONGS_TO.name
             (passive ? "be referenced" : "referenced") << " in"
+          when EMBEDS_ONE.name
+            (passive ? "embed" : "embeds") << " one"
           else
             raise "Unknown association type #{type}"
           end
@@ -112,6 +115,10 @@ def have_and_belong_to_many(association_name)
       def belong_to(association_name)
         HaveAssociationMatcher.new(association_name, BELONGS_TO)
       end
+
+      def embed_one(association_name)
+        HaveAssociationMatcher.new(association_name, EMBEDS_ONE)
+      end
     end
   end
 end

test/matchers/associations_test.rb

@@ -8,6 +8,8 @@
     it { must have_many(:pets).of_type(Pet) }
     it { must have_one(:account).of_type(Account) }
     it { must have_and_belong_to_many(:friends).of_type(Person) }
+
+    it { must embed_one(:profile) }
   end
 
   describe Pet do

test/models/models.rb

@@ -16,6 +16,8 @@ class Person
   has_many :pets
   has_and_belongs_to_many :friends, class_name: "Person"
 
+  embeds_one :profile
+
   validates_presence_of(:name)
   validates_presence_of(:role, message: "no role")
 
@@ -45,3 +47,7 @@ class Account
 
   belongs_to :person
 end
+
+class Profile
+  include Mongoid::Document
+end