may not fire an unknown event #128

lib/aasm/instance_base.rb

@@ -75,8 +75,11 @@ module AASM
     end
 
     def may_fire_event?(name, *args)
-      event = @instance.class.aasm.events[name]
-      event.may_fire?(@instance, *args)
+      if event = @instance.class.aasm.events[name]
+        event.may_fire?(@instance, *args)
+      else
+        false # unknown event
+      end
     end
 
     def set_current_state_with_persistence(state)

spec/unit/complex_example_spec.rb

@@ -72,4 +72,13 @@ describe 'when being unsuspended' do
 
     expect(auth.aasm.current_state).to eq(:passive)
   end
+
+  it "should be able to fire known events" do
+    expect(auth.aasm.may_fire_event?(:activate)).to be_true
+  end
+
+  it "should not be able to fire unknown events" do
+    expect(auth.aasm.may_fire_event?(:unknown)).to be_false
+  end
+
 end