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