[SLING-7553] Sling POST servlet - expand Patch method integration tests.

• Type: Test
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: Launchpad Integration Tests 1.0.6
• Fix Version/s: Launchpad Integration Tests 1.0.8
• Component/s: Servlets
• Flags: Patch
• Assignee: Robert Munteanu
• Reporter: John Logan
• Created: 22/Mar/18 17:28
• Updated: 23/Oct/18 09:21
• Resolved: 24/Mar/18 16:28

Description

Per the discussion at:

https://lists.apache.org/thread.html/a57cec24f459fa0972c93ef4a2759755435a77d6a9c590e7a23440d4@%3Cusers.sling.apache.org%3E

I was trying to include an empty string[] property in nodes created with the POST servlet to avoid errors when adapting the nodes to Sling models, and found that the Patch method supported this by adding and removing a property on a newly created node in the same operation.

 

At present this behavior is undocumented.  If we wish to clarify the behavior, it seems that there are two possibilities:

• Document the current behavior (it appears that Patch operations are applied in sequence).  For this case, I have attached a patch to the integration tests that tests adding and removing a property for a new node, as well as removing and adding a property.
• Update the documentation to state that the behavior for adding and removing in the same operation is unspecified and therefore should not be relied upon.

I have no preference, as I've since switched to the more natural approach of using a default value attribute on the model classes to solve my original problem.