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test() failure not helpful for reporting exact match subset #7834
Description
test(1, c(1:10, 11:1000), c(1:10, 1000:11))
# Test 1 ran without errors but failed check that x equals y:
# > x = c(1:10, 11:1000)
# First 6 of 1000 (type 'integer'):
# [1] 1 2 3 4 5 6
# > y = c(1:10, 1000:11)
# First 6 of 1000 (type 'integer'):
# [1] 1 2 3 4 5 6
# Mean relative difference: 0.9792285We don't get any indication of how x and y actually differ because the glimpse only shows us the first 6 entries no matter what.
For double/complex, the way to proceed is tough, because "how different is different" is very tough in general.
Still, I think we can do better than completely ignoring the issue.
Activity
MichaelChirico commentedon Jul 24, 2026
Similar issue addressed by #7836: