core: function DeleteEvent added to Eventer interface

Signed-off-by: deadprogram <ron@hybridgroup.com>

eventer.go

@@ -18,10 +18,13 @@ type eventer struct {
 type Eventer interface {
 	// Events returns the map of valid Event names.
 	Events() (eventnames map[string]string)
-	// Event returns the map of valid Event names.
+	// Event returns an event string from map of valid Event names.
+	// Mostly used to validate that an Event name is valid.
 	Event(name string) string
 	// AddEvent registers a new Event name.
 	AddEvent(name string)
+	// DeleteEvent removes a previously registered Event name.
+	DeleteEvent(name string)
 	// Publish new events to anyone listening
 	Publish(name string, data interface{})
 	// Subscribe to any events from this eventer
@@ -67,6 +70,10 @@ func (e *eventer) AddEvent(name string) {
 	e.eventnames[name] = name
 }
 
+func (e *eventer) DeleteEvent(name string) {
+	delete(e.eventnames, name)
+}
+
 func (e *eventer) Publish(name string, data interface{}) {
 	evt := NewEvent(name, data)
 	e.in <- evt

eventer_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 )
 
-func TestEventer(t *testing.T) {
+func TestEventerAddEvent(t *testing.T) {
 	e := NewEventer()
 	e.AddEvent("test")
 
@@ -12,3 +12,13 @@ func TestEventer(t *testing.T) {
 		t.Errorf("Could not add event to list of Event names")
 	}
 }
+
+func TestEventerDeleteEvent(t *testing.T) {
+	e := NewEventer()
+	e.AddEvent("test1")
+	e.DeleteEvent("test1")
+
+	if _, ok := e.Events()["test1"]; ok {
+		t.Errorf("Could not add delete event from list of Event names")
+	}
+}