feat: add refile heading

tests/test_org.py

@@ -1024,6 +1024,171 @@ class TestSerde(unittest.TestCase):
 
         self.assertEqual(dumps(doc), "* TODO First entry")
 
+    def test_refile_headline_down_to_bottom(self) -> None:
+        orig = """* Source Headline
+** Child of Source
+* Destination Headline
+** Existing Child"""
+        doc = loads(orig)
+
+        source_headline = doc.headlines[0]
+        destination_headline = doc.headlines[1]
+
+        result = source_headline.refile(destination_headline)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[-1] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Headline
+** Existing Child
+** Source Headline
+*** Child of Source"""
+        )
+
+    def test_refile_headline_down_to_top(self) -> None:
+        orig = """* Source Headline
+** Child of Source
+* Destination Headline
+** Existing Child"""
+        doc = loads(orig)
+
+        source_headline = doc.headlines[0]
+        destination_headline = doc.headlines[1]
+
+        result = source_headline.refile(destination_headline, top=True)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[0] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Headline
+** Source Headline
+*** Child of Source
+** Existing Child"""
+        )
+
+    def test_refile_headline_down_to_existing_child(self) -> None:
+        orig = """* Source Headline
+** Child of Source
+* Destination Parent
+** Destination Headline"""
+        doc = loads(orig)
+
+        source_headline = doc.headlines[0]
+        destination_headline = doc.headlines[1]
+        destination_child = destination_headline.children[0]
+
+        result = source_headline.refile(destination_child)
+
+        assert result == destination_child
+        assert source_headline.parent == destination_child
+        assert source_headline in destination_child.children
+        assert destination_child.children[-1] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Parent
+** Destination Headline
+*** Source Headline
+**** Child of Source"""
+        )
+
+    def test_refile_headline_from_child_to_parent_bottom(self) -> None:
+        orig = """* Destination Headline
+** Existing Child
+*** Source Headline
+**** Source Child"""
+        doc = loads(orig)
+        source_headline = doc.headlines[0].children[0].children[0]
+        destination_headline = doc.headlines[0]
+
+        result = source_headline.refile(destination_headline)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[-1] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Headline
+** Existing Child
+** Source Headline
+*** Source Child"""
+        )
+
+    def test_refile_headline_from_child_to_parent_top(self) -> None:
+        orig = """* Destination Headline
+** Existing Child
+*** Source Headline
+**** Source Child"""
+        doc = loads(orig)
+        source_headline = doc.headlines[0].children[0].children[0]
+        destination_headline = doc.headlines[0]
+
+        result = source_headline.refile(destination_headline, top=True)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[0] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Headline
+** Source Headline
+*** Source Child
+** Existing Child"""
+        )
+
+    def test_refile_headline_from_child_to_first_level_at_bottom(self) -> None:
+        orig = """* Destination Headline
+** Existing Child
+*** Source Headline
+**** Source Child"""
+        doc = loads(orig)
+        source_headline = doc.headlines[0].children[0].children[0]
+        destination_headline = doc.headlines[0].parent
+
+        result = source_headline.refile(destination_headline)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[-1] == source_headline
+        assert (
+            dumps(doc)
+            == """* Destination Headline
+** Existing Child
+* Source Headline
+** Source Child"""
+        )
+
+    def test_refile_headline_from_child_to_first_level_at_top(self) -> None:
+        orig = """* Destination Headline
+** Existing Child
+*** Source Headline
+**** Source Child"""
+        doc = loads(orig)
+        source_headline = doc.headlines[0].children[0].children[0]
+        destination_headline = doc.headlines[0].parent
+
+        result = source_headline.refile(destination_headline, top=True)
+
+        assert result == destination_headline
+        assert source_headline.parent == destination_headline
+        assert source_headline in destination_headline.children
+        assert destination_headline.children[0] == source_headline
+        assert (
+            dumps(doc)
+            == """* Source Headline
+** Source Child
+* Destination Headline
+** Existing Child"""
+        )
+
 
 def print_tree(tree, indentation=0, headline=None):
     for element in tree: