let class names reflect its purpose (in tests)

spec/models/father.rb

@@ -1,21 +0,0 @@
-require 'active_record'
-
-class Father < ActiveRecord::Base
-  include AASM
-
-  aasm do
-    state :missing_details, :initial => true
-    state :pending_details_confirmation
-
-    event :add_details do
-      transitions :from => :missing_details, :to => :pending_details_confirmation
-    end
-  end
-
-  def update_state
-     if may_add_details?
-       add_details!
-     end
-  end
-
-end

spec/models/son.rb

@@ -1,3 +0,0 @@
-class Son < Father
-  include AASM
-end

spec/models/sub_class.rb

@@ -0,0 +1,3 @@
+require_relative 'super_class'
+class SubClass < SuperClass
+end

spec/models/sub_class_with_more_states.rb

@@ -0,0 +1,7 @@
+require_relative 'super_class'
+class SubClassWithMoreStates < SuperClass
+  include AASM
+  aasm do
+    state :foo
+  end
+end

spec/models/super_class.rb

@@ -1,4 +1,4 @@
-class Bar
+class SuperClass
   include AASM
 
   aasm do
@@ -9,7 +9,10 @@ class Bar
       transitions :to => :ended, :from => [:read]
     end
   end
-end
 
-class Baz < Bar
+  def update_state
+    if may_foo?
+      foo!
+    end
+  end
 end

spec/unit/subclassing_spec.rb

@@ -1,30 +1,30 @@
 require 'spec_helper'
 
 describe 'subclassing' do
-  let(:son) {Son.new}
 
   it 'should have the parent states' do
-    Foo.aasm.states.each do |state|
-      expect(FooTwo.aasm.states).to include(state)
+    SuperClass.aasm.states.each do |state|
+      expect(SubClassWithMoreStates.aasm.states).to include(state)
     end
-    expect(Baz.aasm.states).to eq(Bar.aasm.states)
+    expect(SubClass.aasm.states).to eq(SuperClass.aasm.states)
   end
 
   it 'should not add the child states to the parent machine' do
-    expect(Foo.aasm.states).not_to include(:foo)
+    expect(SuperClass.aasm.states).not_to include(:foo)
   end
 
   it "should have the same events as its parent" do
-    expect(Baz.aasm.events).to eq(Bar.aasm.events)
+    expect(SubClass.aasm.events).to eq(SuperClass.aasm.events)
   end
 
-  it 'should know how to respond to `may_add_details?`' do
-    expect(son.may_add_details?).to be_truthy
+  it 'should know how to respond to question methods' do
+    expect(SubClass.new.may_foo?).to be_truthy
   end
 
-  it 'should not break if I call Son#update_state' do
+  it 'should not break if I call methods from super class' do
+    son = SubClass.new
     son.update_state
-    expect(son.aasm.current_state).to eq(:pending_details_confirmation)
+    expect(son.aasm.current_state).to eq(:ended)
   end
 
 end