Ticket #193 - Add name assignment method to task

Needed to refactor alias_task method

lib/capistrano/task_definition.rb

@@ -29,6 +29,11 @@ module Capistrano
         end
       end
     end
+    
+    def name=(value)
+      raise ArgumentError, "expected a valid task name" if !value.respond_to?(:to_sym)
+      @name = value.to_sym
+    end
 
     # Returns the description for this task, with newlines collapsed and
     # whitespace stripped. Returns the empty string if there is no

test/task_definition_test.rb

@@ -25,6 +25,19 @@ class TaskDefinitionTest < Test::Unit::TestCase
     assert_equal "default", task.fully_qualified_name
   end
 
+  def test_name_should_change_task_name
+    task = new_task(:foo)
+    task.name = :bar
+
+    assert_equal :bar, task.name
+  end
+
+  def test_raise_an_exception_when_task_names_can_not_be_converted
+    task = new_task('valid task name')
+
+    assert_raises(ArgumentError) { task.name = ['invalid task name'] }
+  end
+
   def test_deprecation_warning_on_method_name_beginning_with_before_underscore
     name = "before_test"
     Kernel.expects(:warn).with("[Deprecation Warning] Naming tasks with before_ and after_ is deprecated, please see the new before() and after() methods. (Offending task name was #{name})")
@@ -113,4 +126,4 @@ class TaskDefinitionTest < Test::Unit::TestCase
     task = new_task(:testing, @namespace, :desc => "Take file.txt and copy it. Then do something else.")
     assert_equal "Take file.txt and copy it.", task.brief_description
   end
-end
+end