PIM-2754: Introduction of the datagrid support resolver

| Q                    | A
| -------------------- | ---
| Bug fix?             | N
| New feature?         | N
| BC breaks?           | N
| CI currently passes? | Y
| Tests pass?          | Y
| Scenarios pass?      | ?
| Checkstyle issues?   | N
| Changelog updated?   | -
| Fixed tickets        | -
| Doc PR               | -
Like @filipsalpe said me, you should not use should. Here "it_returns...".