I\'m testing a controller that returns a json response but the tests fail after the first time because the h2 database does not reset the auto increment id. Using fixtures o
Execute an SQL-script on your table:
TRUNCATE TABLE my_table RESTART IDENTITY; ALTER SEQUENCE my_table_id_seq RESTART WITH 1;
H2 should be of version 1.4.200 or higher.
See https://www.h2database.com/html/commands.html