Roundtrip test for PrintableDeps

korrat

Mar 6, 2024, 2:17 PM

YWFLYCHUZ3T3RDE5KUQ7BFZU2MM62FPQTI7QHETGB24XCTEGW2CAC

Dependencies

[2] 5FI6SBEZ Re-implement change printing and parsing

Change contents

edit in libpijul/src/tests/text_changes.rs at line 168

[2.8976]

[2.8976]

}

quickcheck! {
fn printable_dep_roundtrip(d1: PrintableDep) -> () {
let mut w = Vec::new();
writeln!(&mut w, "{}", &d1).unwrap();
let utf = std::str::from_utf8(&w).unwrap();
let (_, d2) = parse_dependency(utf).unwrap();
assert_eq!(d1, d2);
}
edit in libpijul/src/change/printable.rs at line 171

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}

impl fmt::Display for PrintableDep {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}{}", self.type_, self.hash)
}
edit in libpijul/src/change/printable.rs at line 185

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}

impl fmt::Display for DepType {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
if let Self::Numbered(n, p) = self {
write!(f, "[{n}]{}", if *p { '+' } else { ' ' })
} else {
write!(
f,
"[{}] ",
if matches!(self, Self::ExtraKnown) {
'*'
} else {
' '
}
)
}
}
edit in libpijul/src/change/printable.rs at line 919

[2.64679]

#[cfg(test)]
impl Arbitrary for PrintableDep {
fn arbitrary(g: &mut Gen) -> Self {
let hash = Hash::Blake3(std::array::from_fn(|_| Arbitrary::arbitrary(g))).to_base32();
Self {
type_: Arbitrary::arbitrary(g),
hash,
}
}

fn shrink(&self) -> Box<dyn Iterator<Item = Self>> {
Box::new(
(self.type_.clone(), self.hash.clone())
.shrink()
.map(|(type_, hash)| Self { type_, hash }),
)
}
}

#[cfg(test)]
impl Arbitrary for DepType {
fn arbitrary(g: &mut Gen) -> Self {
let options = [
Self::ExtraKnown,
Self::ExtraUnknown,
Self::Numbered(Arbitrary::arbitrary(g), Arbitrary::arbitrary(g)),
];
g.choose(&options).unwrap().clone()
}

fn shrink(&self) -> Box<dyn Iterator<Item = Self>> {
match self {
DepType::ExtraKnown | DepType::ExtraUnknown => Box::new(std::iter::empty()),

DepType::Numbered(n, p) => {
Box::new((*n, *p).shrink().map(|(n, p)| Self::Numbered(n, p)))
}
}
}
}