started increasing test coverage for lva

spec/factories/semester_factory.rb

@@ -0,0 +1,15 @@
+
+FactoryGirl.define do
+  factory :semester do
+    nummer 2
+  
+    factory :zero_semester do
+     
+      nummer 0
+    end
+    factory :first_semester do
+     
+      nummer 1
+    end
+  end
+end