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Standard iterator vs Fallible iterator

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gwenn
2023-11-24 20:09:45 +01:00
parent 7dfbc4b8d1
commit 50dca91698
1 changed files with 10 additions and 4 deletions
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14
src/row.rs
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@@ -596,12 +596,18 @@ mod tests {
)?;
let mut stmt = conn.prepare("INSERT INTO foo VALUES (0) RETURNING rowid;")?;
{
let n = stmt.query_map([], |_| Ok(()))?.count();
assert_eq!(1, n); // should be 0
let iterator_count = stmt.query_map([], |_| Ok(()))?.count();
assert_eq!(1, iterator_count); // should be 0
use fallible_streaming_iterator::FallibleStreamingIterator;
let fallible_iterator_count = stmt.query([])?.count().unwrap_or(0);
assert_eq!(0, fallible_iterator_count);
}
{
let last = stmt.query_map([], |_| Ok(()))?.last();
assert!(last.is_some()); // should be none
let iterator_last = stmt.query_map([], |_| Ok(()))?.last();
assert!(iterator_last.is_some()); // should be none
use fallible_iterator::FallibleIterator;
let fallible_iterator_last = stmt.query([])?.map(|_| Ok(())).last();
assert!(fallible_iterator_last.is_err());
}
Ok(())
}