Increase the test coverage of message box search and search in general (Follow up from Post-mortem)

[SandGrainOne]

Description

Back in July 2023 Storage were updated to use PostgreSQL instead of CosmosDB. During that work we had a bug that managed to get all the way out to TT02. One of the follow up points from the Post-mortem were to improve the test coverage.

This issue includes an analysis of the existing tests to see if there are things that can be improved. A lot has already been changed in a year.

The Post-mortem is documented in a private repository. (There should be a link below for anyone with access).

Introduced an error in serialization of a date field made it so that the date became invalid.

The example url from the incident:
https://platform.tt02.altinn.no/storage/api/v1/instances?appId=skd/mva-melding-innsending-v1&size=1000&lastChanged=gt:2022-07-05T12:24:29.473059143&instanceOwner.partyId=51486565&excludeConfirmedBy=skd&status.isArchived=false&status.isSoftDeleted=false&status.isHardDeleted=false

• appId=skd/mva-melding-innsending-v1
• size=1000
• lastChanged=gt:2022-07-05T12:24:29.473059143
• instanceOwner.partyId=51486565
• excludeConfirmedBy=skd
• status.isArchived=false
• status.isSoftDeleted=false
• status.isHardDeleted=false

Additional Information

Another related issue is #27. Maybe that issue can follow up both points. Test coverage would need to be reviewed with new changes anyway.

Tasks

• Add test cases where the search filters include filtering based on date.

Acceptance Criterias

No response

[olebhansen]

@SandGrainOne : Investigate post-mortem to identify relevant testcases to add