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fix: collect results after last error in ResultErrorPool #162

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fix: collect results after last error in ResultErrorPool #162

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12 changes: 12 additions & 0 deletions pool/result_error_pool_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -147,3 +147,15 @@ func TestResultErrorPool(t *testing.T) {
require.NotErrorIs(t, errs2, err1)
})
}

func TestResultErrorPoolResultsAfterError(t *testing.T) {
t.Parallel()
p := pool.NewWithResults[int]().WithErrors().WithMaxGoroutines(1)
p.Go(func() (int, error) { return 1, nil })
p.Go(func() (int, error) { return 2, errors.New("an error") })
p.Go(func() (int, error) { return 3, nil })

got, err := p.Wait()
require.Error(t, err)
require.Equal(t, []int{1, 3}, got)
}
5 changes: 5 additions & 0 deletions pool/result_pool.go
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Original file line number Diff line number Diff line change
Expand Up @@ -138,5 +138,10 @@ func (r *resultAggregator[T]) collect(collectErrored bool) []T {
filtered = append(filtered, r.results[r.errored[i-1]+1:e]...)
}
}
// Append any results after the last errored index.
lastErrored := r.errored[len(r.errored)-1]
if lastErrored+1 < len(r.results) {
filtered = append(filtered, r.results[lastErrored+1:]...)
}
return filtered
}