einige Tests für Modulgruppe hinzugefügt

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