Because the serialization of quantity values involves complex objects (DecimalValue instances), the getSerializationForHash() implementation we inherit from DataValueObject isn’t good enough: we need to override it to also call getSerializationForHash() on the inner DecimalValue instances (amount, upper bound, lower bound).
The hashes for the tests were obtained inside a php:7.2 Docker container, after installing the specified versions with composer, inside a php -a shell.
Because the serialization of quantity values involves complex objects (
DecimalValueinstances), thegetSerializationForHash()implementation we inherit fromDataValueObjectisn’t good enough: we need to override it to also callgetSerializationForHash()on the innerDecimalValueinstances (amount, upper bound, lower bound).The hashes for the tests were obtained inside a php:7.2 Docker container, after installing the specified versions with composer, inside a
php -ashell.Bug: T301249