Adding Call#remove_tag

lib/adhearsion/voip/call.rb

@@ -88,7 +88,6 @@ def initialize(call)
     end
   end
 
-
   class FailedExtensionCallException < MetaAgiCallException; end
 
   class HungupExtensionCallException < MetaAgiCallException; end
@@ -167,6 +166,12 @@ def tag(symbol)
       end
     end
 
+    def remove_tag(symbol)
+      @tag_mutex.synchronize do
+        @tags.reject! { |tag| tag == symbol }
+      end
+    end
+
     def tagged_with?(symbol)
       @tag_mutex.synchronize do
         @tags.include? symbol

spec/voip/test_dialplan_manager.rb

@@ -123,6 +123,15 @@ def mock_dial_plan_lookup_for_context_name
     call.tagged_with?(:authorized).should.equal false
   end
 
+  test "Call#remove_tag" do
+    call = new_call_for_context "roflcopter"
+    call.tag :moderator
+    call.tag :female
+    call.remove_tag :female
+    call.tag :male
+    call.tags.should == [:moderator, :male]
+  end
+
   test 'Call#tagged_with? with many tags' do
     call = new_call_for_context "roflcopter"
     call.tag :customer