transitions_from_state considers missing from state

lib/aasm/event.rb

@@ -26,7 +26,7 @@ module AASM
     end
 
     def transitions_from_state(state)
-      @transitions.select { |t| t.from == state }
+      @transitions.select { |t| t.from.nil? or t.from == state }
     end
 
     def transitions_to_state?(state)

spec/unit/event_spec.rb

@@ -58,6 +58,23 @@ describe 'transition inspection' do
   end
 end
 
+describe 'transition inspection without from' do
+  let(:event) do
+    AASM::Event.new(:run) do
+      transitions :to => :running
+    end
+  end
+
+  it 'should support inspecting transitions from other states' do
+    expect(event.transitions_from_state(:sleeping).map(&:to)).to eq([:running])
+    expect(event.transitions_from_state?(:sleeping)).to be_true
+
+    expect(event.transitions_from_state(:cleaning).map(&:to)).to eq([:running])
+    expect(event.transitions_from_state?(:cleaning)).to be_true
+  end
+
+end
+
 describe 'firing an event' do
   it 'should return nil if the transitions are empty' do
     obj = double('object', :aasm => double('aasm', :current_state => 'open'))