handle junk bytes after tree

CHANGES.rst

@@ -1,7 +1,7 @@
 3.5.0 (unreleased)
 ------------------
 
--
+- handle junk bytes after tree (before or after blocks) [#1822]
 
 3.4.0 (2024-08-04)
 ------------------

asdf/_tests/test_junk_after_tree.py

@@ -0,0 +1,17 @@
+from pathlib import Path
+
+import asdf
+
+TEST_DATA_DIRECTORY = Path(__file__).parent / "data"
+
+
+def test_no_junk():
+    asdf.open(TEST_DATA_DIRECTORY / "no_junk.asdf")
+
+
+def test_junk_before_blocks():
+    asdf.open(TEST_DATA_DIRECTORY / "junk_before_blocks.asdf")
+
+
+def test_junk_after_blocks():
+    asdf.open(TEST_DATA_DIRECTORY / "junk_after_blocks.asdf")