img: add _IfdEntry.tag and .value

Steve Canny · Steve Canny · commit b31b01199eb0 · 2014-02-27T12:08:36.000-08:00
diff --git a/docx/image/tiff.py b/docx/image/tiff.py
@@ -205,14 +205,14 @@ def tag(self):
         """
         Short int code that identifies this IFD entry
         """
-        raise NotImplementedError
+        return self._tag_code
 
     @property
     def value(self):
         """
         Value of this tag, its type being dependent on the tag.
         """
-        raise NotImplementedError
+        return self._value
 
 
 class _AsciiIfdEntry(_IfdEntry):
diff --git a/tests/image/test_tiff.py b/tests/image/test_tiff.py
@@ -343,6 +343,11 @@ def it_can_construct_from_a_stream_and_offset(self, from_stream_fixture):
         _IfdEntry__init_.assert_called_once_with(tag_code, value_)
         assert isinstance(ifd_entry, _IfdEntry)
 
+    def it_provides_read_only_access_to_the_directory_entry(self):
+        tag_code, value = 1, 2
+        ifd_entry = _IfdEntry(tag_code, value)
+        assert (ifd_entry.tag, ifd_entry.value) == (tag_code, value)
+
     # fixtures -------------------------------------------------------
 
     @pytest.fixture
