Closes #25

tests/README.md

@@ -223,6 +223,18 @@ fixture. Saved decoded results and trees retain their original metadata.
 
 ## Attribute coverage
 
+`multilineAttributes` checks multiline definitions, defaults and assignments,
+deferred cycle times, frame format overrides, quoted newlines/semicolons and
+escapes, CRLF input, and warning locations for defaults and explicit values.
+`invalidMultilineAttributes` checks malformed ENUM lists/ranges, missing
+terminators, unterminated strings, undefined names, trailing fields, and error
+locations at the first physical line through both parser APIs.
+
+The multiline changes passed a clean qmake build and `make check` in
+`/tmp/dbc-attributes-build` with Qt 6.8.2: 2,396 QtTest cases and the qmake
+tree target passed. The standalone C++17 tree test also passed. One existing
+C locale test skipped because no named comma-decimal locale is installed.
+
 Parser slots `attributes`, `invalidAttributes`, and `attributeWarnings` cover
 all five scopes and types, deferred definitions/defaults/targets, explicit
 values overriding defaults, repeated assignments, escaped strings, typed