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use std::io;
use sigstore_protobuf_specs::dev::sigstore::bundle::v1::Bundle;
macro_rules! include_asset {
($path:literal) => {
include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/assets/", $path))
};
}
struct SpaceSeparatorFormatter;
impl serde_json::ser::Formatter for SpaceSeparatorFormatter {
fn begin_array_value<W>(&mut self, writer: &mut W, first: bool) -> io::Result<()>
where
W: ?Sized + io::Write,
{
if first {
Ok(())
} else {
writer.write_all(b", ")
}
}
fn begin_object_value<W>(&mut self, writer: &mut W) -> io::Result<()>
where
W: ?Sized + io::Write,
{
writer.write_all(b": ")
}
fn begin_object_key<W>(&mut self, writer: &mut W, first: bool) -> io::Result<()>
where
W: ?Sized + io::Write,
{
if first {
Ok(())
} else {
writer.write_all(b", ")
}
}
fn write_string_fragment<W>(&mut self, writer: &mut W, fragment: &str) -> io::Result<()>
where
W: ?Sized + io::Write,
{
// Replace em-dashes with a unicode escape. serde_json unescapes it.
writer.write_all(fragment.replace("\u{2014}", "\\u2014").as_bytes())
}
}
/// Test re-serializing a known-good bundle from sigstore-python.
#[test]
fn bundle_roundtrip() {
// Deserialize bundle, trimming trailing whitespace.
let input = include_asset!("a.txt.sigstore").trim_end();
let bundle: Bundle = serde_json::from_str(input).expect("failed to deserialize Bundle!");
// Re-serialize bundle with our python-like formatter.
let formatter = SpaceSeparatorFormatter {};
let mut result = Vec::new();
let mut ser = serde_json::Serializer::with_formatter(&mut result, formatter);
serde::Serialize::serialize(&bundle, &mut ser).expect("failed to re-serialize Bundle!");
// Notwithstanding the workarounds above, our serialized bundle should be
// byte-for-byte identical to the input bundle.
let result = std::str::from_utf8(&result).unwrap();
assert_eq!(
input,
&result[..],
"re-serialized Bundle does not match original!"
);
}
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