cmdio: rebuild TestRender table per call to fix -count=N flake#5250
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testCases was a package-level slice whose Workspace_Iterator rows wrapped a stateful *dummyIterator. Next consumes the iterator, so under `go test -count=N` the second iteration of TestRender saw an empty iterator and asserted "id name\n" instead of "id name\n123 abc\n456 def\n". Wrap the table in a makeTestCases() helper that returns a fresh slice (and fresh iterators) on each call. Verified: -count=2 fails before this change and -count=10 passes after. Co-authored-by: Isaac
denik
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andrewnester
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`testCases` was a package-level slice whose `Workspace_Iterator` rows wrapped a stateful `*dummyIterator`. `Next` consumes the iterator, so under `go test -count=N` the second iteration of `TestRender` saw an empty iterator and asserted `"id name\n"` instead of `"id name\n123 abc\n456 def\n"`. Wrap the table in a `makeTestCases()` helper that returns a fresh slice (and fresh iterators) on each call. Verified: `-count=2` fails before this change and `-count=10` passes after. This pull request and its description were written by Isaac.
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testCaseswas a package-level slice whoseWorkspace_Iteratorrows wrapped a stateful*dummyIterator.Nextconsumes the iterator, so undergo test -count=Nthe second iteration ofTestRendersaw an empty iterator and asserted"id name\n"instead of"id name\n123 abc\n456 def\n".Wrap the table in a
makeTestCases()helper that returns a fresh slice (and fresh iterators) on each call. Verified:-count=2fails before this change and-count=10passes after.This pull request and its description were written by Isaac.