  
          assert MockView().get_view_description() == DESCRIPTION
  
      def test_view_description_can_be_empty(self):
          """
          Ensure that if a view has no docstring,
          then it's description is the empty string.
          """
 
</s> remove def get_view_description(view_cls, html=False):
 </s> add def get_view_description(view, html=False): </s> remove     description = view_cls.__doc__ or ''
 </s> add     # Description may be set by some Views, such as a ViewSet.
    description = getattr(view, 'description', None)
    if description is None:
        description = view.__class__.__doc__ or ''
 </s> remove         return super(ExampleSerializer, self).retrieve(self, request)
 </s> add         raise NotImplementedError
    def test_view_description_uses_description_attribute(self):
        class MockView(APIView):
            description = 'Foo'
        assert MockView().get_view_description() == 'Foo'

    def test_view_description_allows_empty_description(self):
        class MockView(APIView):
            """Description."""
            description = ''
        assert MockView().get_view_description() == ''

  
          assert MockView().get_view_description() == DESCRIPTION
  
    def test_view_description_uses_description_attribute(self):
        class MockView(APIView):
            description = 'Foo'
        assert MockView().get_view_description() == 'Foo'

    def test_view_description_allows_empty_description(self):
        class MockView(APIView):
            """Description."""
            description = ''
        assert MockView().get_view_description() == ''

      def test_view_description_can_be_empty(self):
          """
          Ensure that if a view has no docstring,
          then it's description is the empty string.
          """
keep keep add keep keep keep keep keep
 Improvements to ViewSet extra actions (#5605)

* View suffix already set by initializer

* Add 'name' and 'description' attributes to ViewSet

ViewSets may now provide their `name` and `description` attributes
directly, instead of relying on view introspection to derive them.
These attributes may also be provided with the view's initkwargs.

The ViewSet `name` and `suffix` initkwargs are mutually exclusive.

The `action` decorator now provides the `name` and `description` to
the view's initkwargs. By default, these values are derived from the
method name and its docstring. The `name` may be overridden by providing
it as an argument to the decorator.

The `get_view_name` and `get_view_description` hooks now provide the
view instance to the handler, instead of the view class. The default
implementations of these handlers now respect the `name`/`description`.

* Add 'extra actions' to ViewSet & browsable APIs

* Update simple router tests

Removed old test logic around link/action decorators from `v2.3`. Also
simplified the test by making the results explicit instead of computed.

* Add method mapping to ViewSet actions

* Document extra action method mapping 
tests/test_description.py