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#[test]
fn try_result_err() {
fn foo(a, b) {
Ok(b / a)
}
fn bar(a, b) {
Err(b / a)
}
fn inner() {
Ok(foo(2, 4)? + bar(3, 9)?)
}
assert_eq!(inner(), Err(3));
}
#[test]
fn try_option_none() {
struct Bar {
x,
y,
}
fn inner() {
(Bar { x: Some(1), y: None? }).x
}
assert_eq!(inner(), None);
}
#[test]
fn try_ok_err() {
fn foo(a, b) {
Ok(b / a)
}
fn inner() {
Ok(foo(2, 4)? + {
Err(6 / 2)
}?)
}
assert_eq!(inner(), Err(3));
}