Generate default users only once and reset db after each test

spec/support/fixture_builder.rb

@@ -0,0 +1,14 @@
+# set default users as initial database for each test
+RSpec.configure do |config|
+  config.before(:suite) do
+    Person.reset_database
+    Fabricate(:user, diaspora_id: "alice@localhost:3000")
+    Fabricate(:user, diaspora_id: "bob@localhost:3000")
+    Person.init_database = Person.database
+  end
+
+  config.after(:each) do
+    Entity.reset_database
+    Person.reset_database
+  end
+end

spec/support/helper_methods.rb

@@ -1,10 +1,10 @@
 # default users
 def alice
-  @alice ||= Fabricate(:user, diaspora_id: "alice@localhost:3000")
+  @alice ||= Person.find_by(diaspora_id: "alice@localhost:3000")
 end
 
 def bob
-  @bob ||= Fabricate(:user, diaspora_id: "bob@localhost:3000")
+  @bob ||= Person.find_by(diaspora_id: "bob@localhost:3000")
 end
 
 # callback expectation helper

test/dummy/app/models/entity.rb

@@ -19,5 +19,9 @@ class Entity
     def database
       @database ||= Hash.new({})
     end
+
+    def reset_database
+      @database = nil
+    end
   end
 end

test/dummy/app/models/person.rb

@@ -30,13 +30,19 @@ class Person
   end
 
   class << self
+    attr_writer :init_database
+
     def find_by(opts)
       return database[:diaspora_id][opts[:diaspora_id]] if opts[:diaspora_id]
       database[:guid][opts[:guid]]
     end
 
     def database
-      @database ||= {diaspora_id: {}, guid: {}}
+      @database ||= @init_database || {diaspora_id: {}, guid: {}}
+    end
+
+    def reset_database
+      @database = nil
     end
   end
 end