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From what I can tell testing this would require mocking nodes, connections, node types, and finding a way to check the paired error message on the last node. Since this is only unblocking an error message string, I assume all this setup for a minimal test is not worth the effort. Else let me know.
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e2e test might be okay just to have something..
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Thanks, I try to avoid adding more to e2e when the issue should be testable via unit tests like here. Ideally the paired item functionality should have a setup for this already.
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we already have good paired item e2e tests for mapping data.. but I don't think we have any tests for errors