start on insertion events and handling

test/risc/position/helper.rb

@@ -14,5 +14,10 @@ module Risc
     def initialize(nekst = nil)
       @next = nekst
     end
+    def insert(instruction)
+      ret = super
+      Position.get(self).trigger_inserted if Position.set?(self)
+      ret
+    end
   end
 end

test/risc/position/test_instruction_listener.rb

@@ -53,24 +53,4 @@ module Risc
       assert_equal Branch , at_8.object.class
     end
   end
-  class TestInstructionListenerBig < MiniTest::Test
-    def setup
-      Risc.machine.boot
-      @binary = Parfait::BinaryCode.new(1)
-      @bin_pos = Position.new(@binary,0)
-      @instruction = DummyInstruction.new
-      13.times {@instruction.last.insert(DummyInstruction.new) }
-      @position = InstructionListener.init(@instruction , @binary)
-      @position.set(8)
-    end
-    def test_padding
-      assert_equal 64 , @binary.padded_length
-    end
-    def test_last
-      assert_equal 72 , Position.get(@instruction.last).at
-    end
-    def test_next
-      assert @binary.next
-    end
-  end
 end

test/risc/position/test_instruction_listener1.rb

@@ -0,0 +1,32 @@
+require_relative "helper"
+
+module Risc
+  class TestInstructionListenerBig < MiniTest::Test
+    def setup
+      Risc.machine.boot
+      @binary = Parfait::BinaryCode.new(1)
+      @bin_pos = Position.new(@binary,0)
+      @instruction = DummyInstruction.new
+      13.times {@instruction.last.insert(DummyInstruction.new) }
+      @position = InstructionListener.init(@instruction , @binary)
+      @position.set(8)
+    end
+    def test_padding
+      assert_equal 64 , @binary.padded_length
+    end
+    def test_last
+      assert_equal 72 , Position.get(@instruction.last).at
+    end
+    def test_next
+      assert @binary.next
+    end
+    def test_insert_initializes
+      @instruction.insert DummyInstruction.new
+      assert Position.get(@instruction.next)
+    end
+    def pest_insert_pushes
+      @instruction.insert DummyInstruction.new
+      assert_equal 76 , Position.get(@instruction.last).at
+    end
+  end
+end

test/risc/position/test_position.rb

@@ -24,6 +24,9 @@ module Risc
     def test_has_listeners_helper
       assert_equal Array , @pos.position_listeners.class
     end
+    def test_has_trigger_inserted
+      assert_equal [] , @pos.trigger_inserted
+    end
     def test_listeners_empty
       assert @pos.position_listeners.empty?
     end
@@ -80,7 +83,7 @@ module Risc
     def test_can_unregister
       listener = PositionListener.new(self)
       assert @position.position_listener(listener)
-      assert @position.unregister_event(:position_changed ,listener)
+      assert @position.remove_position_listener(listener)
     end
     def test_fires
       @object = @instruction
@@ -92,13 +95,22 @@ module Risc
       @object = @instruction
       Position.new(self, 10)
       assert @position.register_event(:position_changed , self)
-      assert @position.unregister_event(:position_changed ,self)
+      assert @position.remove_position_listener(self)
       @position.trigger(:position_changed , @position)
       assert_nil @trigger
     end
+    def test_can_trigger_inserted
+      @object = @instruction
+      @position.register_event(:position_changed , self)
+      @position.trigger_inserted
+      assert_equal @position , @trigger
+    end
     def position_changed(pos)
       @trigger = pos
     end
+    def position_inserted(pos)
+      @trigger = pos
+    end
   end
 end