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buildmimetree.py: list only becomes mp/mixed if len>1
[etc/neomutt.git] / .config / neomutt / buildmimetree.py
index 4ab7a5488055c624baee9b91f8ba8fd63b664fa6..779f60b9f449edc56efb473c90b058768efa4bad 100755 (executable)
@@ -350,9 +350,11 @@ class MIMETreeDFWalker:
         Recursive function to implement a depth-dirst walk of the MIME-tree
         rooted at `root`.
         """
-
         if isinstance(root, list):
-            root = Multipart("mixed", children=root)
+            if len(root) > 1:
+                root = Multipart("mixed", children=root)
+            else:
+                root = root[0]
 
         self._walk(
             root,
@@ -723,14 +725,17 @@ try:
             assert items[4][0].subtype == "relative"
             assert items[4][1] == 0
 
-        def test_MIMETreeDFWalker_list_to_mixed(self, basic_mime_tree):
+        def test_MIMETreeDFWalker_list_to_mixed(self, const1):
             mimetree = MIMETreeDFWalker()
             items = []
 
             def visitor_fn(item, stack, debugprint):
                 items.append(item)
 
-            mimetree.walk([basic_mime_tree], visitor_fn=visitor_fn)
+            p = Part("text", "plain", const1)
+            mimetree.walk([p], visitor_fn=visitor_fn)
+            assert items[-1].subtype == "plain"
+            mimetree.walk([p, p], visitor_fn=visitor_fn)
             assert items[-1].subtype == "mixed"
 
         def test_MIMETreeDFWalker_visitor_in_constructor(