diff --git a/spec/factories/modulgruppen.rb b/spec/factories/modulgruppen.rb
index 0d43b62..90946d0 100644
--- a/spec/factories/modulgruppen.rb
+++ b/spec/factories/modulgruppen.rb
@@ -6,5 +6,10 @@ FactoryGirl.define do
   phase 1
   name "Pflichtmodule 1"
   desc "ASDFASDF"
+	factory :other_modulgruppe do
+	name "PFlichtmodule 2"
+	desc "sdafaswdfsfr"
+	end
   end
+
 end
diff --git a/spec/factories/studien.rb b/spec/factories/studien.rb
index 071a60e..5677904 100644
--- a/spec/factories/studien.rb
+++ b/spec/factories/studien.rb
@@ -3,10 +3,17 @@
 
 FactoryGirl.define do  
   factory :studium do
-    zahl  "066.506"
+    zahl  "066506"
     name  "Automatisierung"
     desc  "TEST DESC"
     typ "Master"
+    
+    factory :other_studium do
+		name "Telecommunication"
+		desc "frueher Telekommungikation"
+		zahl "066507"
+		typ "Master"
+	end
   end
  
 end
diff --git a/spec/models/modulgruppe_spec.rb b/spec/models/modulgruppe_spec.rb
index 7a39d6c..3a863e3 100644
--- a/spec/models/modulgruppe_spec.rb
+++ b/spec/models/modulgruppe_spec.rb
@@ -1,16 +1,46 @@
 require 'spec_helper'
 
 describe Modulgruppe do
-  it "modulgruppe should not be valid without studium" do
+  it "should not be valid without studium" do
   mg=FactoryGirl.build(:modulgruppe)
   mg.should_not be_valid
   mg.should have(1).errors_on(:studium_id)
   end 
-  it "modulgruppe should be valid with studium" do
+  it "should be valid with studium" do
   s=FactoryGirl.create(:studium)
   mg=FactoryGirl.build(:modulgruppe)
   mg.studium=s
   mg.should be_valid
   end   
+  it "should not be valid without name" do
+  s=FactoryGirl.create(:studium)
+  mg=FactoryGirl.build(:modulgruppe)
+  mg.studium=s
+  mg.name=nil
+  mg.should_not be_valid
+  mg.should have_at_least(1).errors_on(:name)
+  end 
+  xit "should not be valid with dubble name" do
+  s=FactoryGirl.create(:studium)
+  mg=FactoryGirl.build(:modulgruppe, name: "Gruppe 1", desc: "132")
+  mg.studium=s
+  mg.save
+  mg=FactoryGirl.build(:modulgruppe, name: "Gruppe 2", desc: "133")
+  mg.studium=s
+  mg.should_not be_valid
+  mg.should have_at_least(1).errors_on(:name)
+  end    
+  
+  it "should be valid with same name on different studien" do
+  s=FactoryGirl.create(:studium)
+  s2=FactoryGirl.create(:other_studium)
+  mg=FactoryGirl.build(:modulgruppe, name: "Gruppe")
+  mg.studium=s
+  mg.save
+  mg=FactoryGirl.build(:other_modulgruppe, name: "Gruppe")
+  mg.studium=s2
+  mg.should be_valid
+
+  end    
   
 end