Read names for code blocks.

tests/04-code.org

@@ -9,6 +9,7 @@
 :CREATED:  [2020-01-01 Wed 01:01]
 :END:
 
+#+NAME: first-code-name
 #+BEGIN_SRC shell :results verbatim
 echo "This is a test"
 echo "with two lines"

tests/test_org.py

@@ -480,6 +480,10 @@ class TestSerde(unittest.TestCase):
 
         snippets = list(doc.get_code_snippets())
         self.assertEqual(len(snippets), 3)
+        self.assertEqual(
+            snippets[0].name,
+            'first-code-name'
+        )
         self.assertEqual(
             snippets[0].content,
             'echo "This is a test"\n'
@@ -494,6 +498,10 @@ class TestSerde(unittest.TestCase):
             "This is a test\n" + "with two lines",
         )
 
+        self.assertEqual(
+            snippets[1].name,
+            None
+        )
         self.assertEqual(
             snippets[1].content,
             'echo "This is another test"\n'
@@ -504,6 +512,10 @@ class TestSerde(unittest.TestCase):
             snippets[1].result, "This is another test\n" + "with two lines too"
         )
 
+        self.assertEqual(
+            snippets[2].name,
+            None
+        )
         self.assertEqual(
             snippets[2].content,
             "/* This code has to be escaped to\n"