cleans up Settings after spec

spec/models/setting_spec.rb

@@ -50,7 +50,6 @@ describe Setting, :type => :model do
   describe "changing a setting" do
     context "setting doesn't exist in the database" do
       before do
-        Setting.destroy_all
         Setting.host_name = "some name"
       end
 
@@ -61,6 +60,10 @@ describe Setting, :type => :model do
       it "stores the setting" do
         expect(Setting.find_by_name('host_name').value).to eq "some name"
       end
+
+      after do
+        Setting.find_by_name('host_name').destroy
+      end
     end
 
     context "setting already exist in the database" do
@@ -76,17 +79,28 @@ describe Setting, :type => :model do
       it "stores the setting" do
         expect(Setting.find_by_name('host_name').value).to eq "some other name"
       end
+
+      after do
+        Setting.find_by_name('host_name').destroy
+      end
     end
   end
 
   # tests the serialization feature to store complex data types like arrays in settings
   describe "serialized settings" do
-    it "serializes arrays" do
+    before do
       # note: notified_events is marked as serialized in settings.yml (no type-based automagic here)
       Setting.notified_events = ['some_event']
+    end
+
+    it "serializes arrays" do
       expect(Setting.notified_events).to eq ['some_event']
       expect(Setting.find_by_name('notified_events').value).to eq ['some_event']
     end
+
+    after do
+      Setting.find_by_name('notified_events').destroy
+    end
   end
 
   # tests stuff regarding settings callbacks
@@ -149,6 +163,10 @@ describe Setting, :type => :model do
       Setting.host_name = 'some other name'
       expect(collector).to include 'some name'
     end
+
+    after do
+      Setting.destroy_all
+    end
   end
 
 end