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use rune_testing::*;
#[test]
fn test_simple_stream() {
assert_eq! {
rune! {
i64 => r#"
async fn foo() {
let n = 0;
let give = || {
n + 1
};
yield give();
yield give();
yield give();
}
async fn main() {
let gen = foo();
let result = 0;
while let Some(value) = gen.next().await {
result += value;
}
result
}
"#
},
3,
};
}
#[test]
fn test_resume() {
assert_eq! {
rune! {
i64 => r#"
use std::generator::GeneratorState;
async fn foo() { let a = yield 1; let b = yield a; b }
async fn main() {
let gen = foo();
let result = 0;
if let GeneratorState::Yielded(value) = gen.resume(()).await {
result += value;
} else {
panic("unexpected");
}
if let GeneratorState::Yielded(value) = gen.resume(2).await {
result += value;
} else {
panic("unexpected");
}
if let GeneratorState::Complete(value) = gen.resume(3).await {
result += value;
} else {
panic("unexpected");
}
result
}
"#
},
6,
};
}