DELETE should fail without correct etag
I just noticed the nikita code at least some times expect etag to be set for DELETE to work. Setting it in runtest caused every DELETE call to succeed, as far as I could tell. The problem is that some DELETE call do not require etag. This is the list from a runtest run without setting etag on DELETE:
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/dokumentobjekt/ac110004-6fa2-1679-816f-a2e75d03003c/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/dokumentbeskrivelse/ac110004-6fa2-1679-816f-a2e75cb7003b/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75c64003a/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75c170039/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75bcc0038/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75b7d0037/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75b410036/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75afd0035/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e75ab50034/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e75a6e0033/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e75a270032/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e759dd0031/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e759930030/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e7595a002f/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e75921002e/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e758e3002d/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/sakarkiv/journalpost/ac110004-6fa2-1679-816f-a2e758a2002c/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/registrering/ac110004-6fa2-1679-816f-a2e757c20029/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/mappe/ac110004-6fa2-1679-816f-a2e757830028/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/mappe/ac110004-6fa2-1679-816f-a2e757450027/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/klasse/ac110004-6fa2-1679-816f-a2e756f60026/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/klasse/ac110004-6fa2-1679-816f-a2e756c70025/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/arkivskaper/ac110004-6fa2-1679-816f-a2e755cf0020/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/dokumentobjekt/ac110004-6fa2-1679-816f-a2e7335f001f/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/dokumentbeskrivelse/ac110004-6fa2-1679-816f-a2e732ae001e/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e73213001d/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e731b4001c/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e73157001b/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e730e9001a/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e730890019/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e7303f0018/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartperson/ac110004-6fa2-1679-816f-a2e72fe40017/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72f6e0016/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72f100015/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72ebb0014/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72e6a0013/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72e0b0012/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72db20011/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/korrespondansepartenhet/ac110004-6fa2-1679-816f-a2e72d540010/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/sakarkiv/journalpost/ac110004-6fa2-1679-816f-a2e72b8d000f/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/registrering/ac110004-6fa2-1679-816f-a2e72831000c/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/mappe/ac110004-6fa2-1679-816f-a2e7279d000b/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/mappe/ac110004-6fa2-1679-816f-a2e7272f000a/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/klasse/ac110004-6fa2-1679-816f-a2e726680009/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/klasse/ac110004-6fa2-1679-816f-a2e726070008/
success: able to DELETE http://localhost:8092/noark5v5/hateoas-api/arkivstruktur/arkivskaper/ac110004-6fa2-1679-816f-a2e7232e0003/