coverage+

Author: pubpub-zz

pypdf/generic/_base.py

@@ -530,8 +530,11 @@ def __new__(cls, value: Any) -> "TextStringObject":
         o.autodetect_pdfdocencoding = False
         o.utf16_bom = b""
         if value.startswith(("\xfe\xff", "\xff\xfe")):
+            assert org is not None  # for mypy
+            o = str.__new__(cls, org.decode("utf-16"))
+            o._original_bytes = org
             o.autodetect_utf16 = True
-            o.utf16_bom = value[:2].encode("charmap")
+            o.utf16_bom = org[:2]
         else:
             try:
                 encode_pdfdocencoding(o)

tests/test_generic.py

@@ -1131,6 +1131,16 @@ def test_create_string_object_utf16_bom():
         result.get_encoded_bytes()
         == b"\xff\xfeP\x00a\x00p\x00e\x00r\x00P\x00o\x00r\x00t\x00 \x001\x004\x00\x00\x00"
     )
+    result = TextStringObject(
+        b"\xff\xfeP\x00a\x00p\x00e\x00r\x00P\x00o\x00r\x00t\x00 \x001\x004\x00\x00\x00"
+    )
+    assert result == "PaperPort 14\x00"
+    assert result.autodetect_utf16 is True
+    assert result.utf16_bom == b"\xff\xfe"
+    assert (
+        result.get_encoded_bytes()
+        == b"\xff\xfeP\x00a\x00p\x00e\x00r\x00P\x00o\x00r\x00t\x00 \x001\x004\x00\x00\x00"
+    )
 
     # utf16-be without bom
     result = TextStringObject("ÿ")