use gix_actor::SignatureRef;use gix_object::{    CommitRef, CommitRefIter, WriteTo, bstr::ByteSlice, commit::message::body::TrailerRef, commit::ref_iter::Token,};use smallvec::SmallVec; use crate::{    commit::{LONG_MESSAGE, MERGE_TAG, SIGNATURE},    fixture_name, fixture_oid, linus_signature,}; #[test]fn invalid_timestsamp() {    assert_eq!(        CommitRef::from_bytes(&fixture_name("commit", "invalid-timestamp.txt"), gix_hash::Kind::Sha1)            .expect("auto-correct invalid timestamp by discarding it (time is still valid UTC)"),        CommitRef {            tree: b"7989dfb2ec2f41914611a22fb30bbc2b3849df9a".as_bstr(),            parents: [b"8845ae683e2688bc619baade49510c17e978518f".as_bstr()].into(),            author: b"Name <name@example.com> 1312735823 +051800".as_bstr(),            committer: b"Name <name@example.com> 1312735823 +051800".as_bstr(),            encoding: None,            message: b"edit changelog to mention about x_sendfile_header default change".as_bstr(),            extra_headers: vec![]        },        "the offset of the actor is null, leaving the UTC time"    );} #[test]fn sha256_with_all_fields_and_signature() -> crate::Result {    let input = b"tree 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdefparent 1111111111111111111111111111111111111111111111111111111111111111parent 2222222222222222222222222222222222222222222222222222222222222222author Ada Lovelace <ada@example.com> 1710000000 +0000committer Grace Hopper <grace@example.com> 1710003600 -0230encoding ISO-8859-1gpgsig-sha256 -----BEGIN SSH SIGNATURE----- U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgZXhhbXBsZS1zaGEyNTY= -----END SSH SIGNATURE-----mergetag object 3333333333333333333333333333333333333333333333333333333333333333 type commit tag nested-sha256 tagger Release Bot <release@example.com> 1710007200 +0530\x20nested release notes -----BEGIN PGP SIGNATURE----- nested-signature -----END PGP SIGNATURE----- sha256 subject sha256 body";    let commit = CommitRef::from_bytes(input, gix_hash::Kind::Sha256)?;    assert_eq!(        commit.tree,        b"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef".as_bstr()    );    assert_eq!(commit.parents.len(), 2);    assert_eq!(commit.encoding, Some(b"ISO-8859-1".as_bstr()));    assert_eq!(commit.author()?.name, b"Ada Lovelace".as_bstr());    assert_eq!(commit.committer()?.email, b"grace@example.com".as_bstr());    assert_eq!(        commit.extra_headers().pgp_signature(),        if cfg!(feature = "sha256") {            Some(                b"-----BEGIN SSH SIGNATURE-----U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgZXhhbXBsZS1zaGEyNTY=-----END SSH SIGNATURE-----"                .as_bstr(),            )        } else {            None        },        "`gpgsig-sha256` is recognized exactly when SHA-256 support is enabled"    );    assert_eq!(commit.extra_headers().mergetags().count(), 1);    assert_eq!(commit.message, b"sha256 subject\n\nsha256 body\n".as_bstr());     let tokens = CommitRefIter::from_bytes(input, gix_hash::Kind::Sha256).collect::<Result<Vec<_>, _>>()?;    assert!(matches!(tokens[0], Token::Tree { ref id } if id.kind() == gix_hash::Kind::Sha256));    assert_eq!(        tokens            .iter()            .filter(|token| matches!(token, Token::Parent { .. }))            .count(),        2    );    assert_eq!(        tokens.last(),        Some(&Token::Message(b"sha256 subject\n\nsha256 body\n".as_bstr()))    );    Ok(())} #[test]fn uppercase_tree_id() -> crate::Result {    let input = b"tree 7989DFB2EC2F41914611A22FB30BBC2B3849DF9Aauthor Name <name@example.com> 1312735823 +0518committer Name <name@example.com> 1312735823 +0518 message";    let commit = CommitRef::from_bytes(input, gix_hash::Kind::Sha1)?;    assert_eq!(commit.tree, b"7989DFB2EC2F41914611A22FB30BBC2B3849DF9A".as_bstr());    assert_eq!(commit.tree(), "7989dfb2ec2f41914611a22fb30bbc2b3849df9a");    Ok(())} #[test]fn invalid_email_of_committer() -> crate::Result {    let actor = gix_actor::SignatureRef {        name: b"Gregor Hartmann".as_bstr(),        email: b"gh <Gregor Hartmann<gh@openoffice.org".as_bstr(),        time: "1282910542 +0200",    };     let mut buf = vec![];    let backing = fixture_name("commit", "invalid-actor.txt");    let commit = CommitRef::from_bytes(&backing, gix_hash::Kind::Sha1).expect("ignore strangely formed actor format");    assert_eq!(        commit,        CommitRef {            tree: b"220738fd4199e95a2b244465168366a73ebdf271".as_bstr(),            parents: [b"209fbe2d632761b30b7b17422914e11b93692833".as_bstr()].into(),            author: b"Gregor Hartmann<gh <Gregor Hartmann<gh@openoffice.org>> 1282910542 +0200".as_bstr(),            committer: b"Gregor Hartmann<gh <Gregor Hartmann<gh@openoffice.org>> 1282910542 +0200".as_bstr(),            encoding: None,            message: b"build breakers".as_bstr(),            extra_headers: vec![]        }    );    assert_eq!(commit.author()?, actor);    assert_eq!(commit.committer()?, actor);     commit.write_to(&mut buf).expect("we can write invalid actors back");    assert_eq!(        CommitRef::from_bytes(&buf, gix_hash::Kind::Sha1).expect("this is the same commit and it can be parsed"),        commit,        "round-tripping works"    );     Ok(())} #[test]fn unsigned() -> crate::Result {    let tree = fixture_oid_hex("1b2dfb4ac5e42080b682fc676e9738c94ce6d54d");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("unsigned.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::default(),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592437401 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592437401 +0800".as_bstr(),            encoding: None,            message: b"without sig".as_bstr(),            extra_headers: vec![]        }    );    Ok(())} #[test]fn whitespace() -> crate::Result {    let tree = fixture_oid_hex("9bed6275068a0575243ba8409253e61af81ab2ff");    let parent = fixture_oid_hex("26b4df046d1776c123ac69d918f5aec247b58cc6");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("whitespace.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592448450 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592448450 +0800".as_bstr(),            encoding: None,            message: b" nl".as_bstr(), // this one had a \n trailing it, but git seems to trim that            extra_headers: vec![]        }    );    Ok(())} #[test]fn signed_singleline() -> crate::Result {    let tree = fixture_oid_hex("00fc39317701176e326974ce44f5bd545a32ec0b");    let parent = fixture_oid_hex("09d8d3a12e161a7f6afb522dbe8900a9c09bce06");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("signed-singleline.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592391367 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592391367 +0800".as_bstr(),            encoding: None,            message: b"update tasks\n".as_bstr(),            extra_headers: vec![(b"gpgsig".as_bstr(), b"magic:signature".as_bstr().into())]        }    );    Ok(())} #[test]fn mergetag() -> crate::Result {    let fixture = commit_fixture("mergetag.txt")?;    let tree = fixture_oid_hex("1c61918031bf2c7fab9e17dde3c52a6a9884fcb5");    let parent_a = fixture_oid_hex("44ebe016df3aad96e3be8f95ec52397728dd7701");    let parent_b = fixture_oid_hex("8d485da0ddee79d0e6713405694253d401e41b93");    let expected = CommitRef {        tree: tree.as_bytes().as_bstr(),        parents: SmallVec::from(vec![parent_a.as_bytes().as_bstr(), parent_b.as_bytes().as_bstr()]),        author: b"Linus Torvalds <torvalds@linux-foundation.org> 1591996221 -0700".as_bstr(),        committer: b"Linus Torvalds <torvalds@linux-foundation.org> 1591996221 -0700".as_bstr(),        encoding: None,        message: LONG_MESSAGE.as_bytes().as_bstr(),        extra_headers: vec![(            b"mergetag".as_bstr(),            std::borrow::Cow::Owned(MERGE_TAG.as_bytes().into()),        )],    };    let commit = CommitRef::from_bytes(&fixture, crate::fixture_hash_kind())?;    assert_eq!(commit, expected);    assert_eq!(commit.extra_headers().find_all("mergetag").count(), 1);    assert_eq!(commit.extra_headers().mergetags().count(), 1);    assert_eq!(commit.author()?, linus_signature("1591996221 -0700"));    assert_eq!(commit.committer()?, linus_signature("1591996221 -0700"));    Ok(())} #[test]fn signed() -> crate::Result {    let tree = fixture_oid_hex("00fc39317701176e326974ce44f5bd545a32ec0b");    let parent = fixture_oid_hex("09d8d3a12e161a7f6afb522dbe8900a9c09bce06");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("signed.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592391367 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592391367 +0800".as_bstr(),            encoding: None,            message: b"update tasks\n".as_bstr(),            extra_headers: vec![(b"gpgsig".as_bstr(), b"-----BEGIN PGP SIGNATURE-----\n\niQEzBAABCAAdFiEEdjYp/sh4j8NRKLX27gKdHl60AwAFAl7p9tgACgkQ7gKdHl60\nAwBpegf+KQciv9AOIN7+yPmowecGxBnSfpKWTDzFxnyGR8dq63SpWT8WEKG5mf3a\nG6iUqpsDWaMHlzihaMKRvgRpZxFRbjnNPFBj6F4RRqfE+5R7k6DRSLUV5PqnsdSH\nuccfIDWi1imhsm7AaP5trwl1t+83U2JhHqPcPVFLMODYwWeO6NLR/JCzGSTQRa8t\nRgaVMKI19O/fge5OT5Ua8D47VKEhsJX0LfmkP5RfZQ8JJvNd40TupqKRdlv0sAzP\nya7NXkSHXCavHNR6kA+KpWxn900UoGK8/IDlwU6MeOkpPVawb3NFMqnc7KJDaC2p\nSMzpuEG8LTrCx2YSpHNLqHyzvQ1CZA==\n=5ITV\n-----END PGP SIGNATURE-----\n".as_bstr().into())]        }    );    Ok(())} #[test]fn signed_with_encoding() -> crate::Result {    let tree = fixture_oid_hex("1973afa74d87b2bb73fa884aaaa8752aec43ea88");    let parent = fixture_oid_hex("79c51cc86923e2b8ca0ee5c4eb75e48027133f9a");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("signed-with-encoding.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592448995 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592449083 +0800".as_bstr(),            encoding: Some(b"ISO-8859-1".as_bstr()),            message: b"encoding & sig".as_bstr(),            extra_headers: vec![(b"gpgsig".as_bstr(), SIGNATURE.as_bstr().into())]        }    );    Ok(())} #[test]fn with_encoding() -> crate::Result {    let tree = fixture_oid_hex("4a1c03029e7407c0afe9fc0320b3258e188b115e");    let parent = fixture_oid_hex("7ca98aad461a5c302cb4c9e3acaaa6053cc67a62");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("with-encoding.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592438199 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592438199 +0800".as_bstr(),            encoding: Some("ISO-8859-1".into()),            message: b"commit with encoding".as_bstr(),            extra_headers: vec![]        }    );    Ok(())} #[test]fn pre_epoch() -> crate::Result {    let tree = fixture_oid_hex("71cdd4015386b764b178005cad4c88966bc9d61a");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("pre-epoch.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::default(),            author: "Législateur <> -5263834140 +0009".as_bytes().as_bstr(),            committer: "Législateur <> -5263834140 +0009".as_bytes().as_bstr(),            encoding: None,            message: "Version consolidée au 14 mars 1803\n".into(),            extra_headers: vec![]        }    );    Ok(())} #[test]fn double_dash_special_time_offset() -> crate::Result {    assert_eq!(        CommitRef::from_bytes(            &fixture_name("commit", "double-dash-date-offset.txt"),            gix_hash::Kind::Sha1        )?,        CommitRef {            tree: b"0a851d7a2a66084ab10516c406a405d147e974ad".as_bstr(),            parents: SmallVec::from(vec![b"31350f4f0f459485eff2131517e3450cf251f6fa".as_bstr()]),            author: "name <name@example.com> 1288373970 --700".as_bytes().as_bstr(),            committer: "name <name@example.com> 1288373970 --700".as_bytes().as_bstr(),            encoding: None,            message: "msg\n".into(),            extra_headers: vec![]        }    );    Ok(())} #[test]fn with_trailer() -> crate::Result {    let kim = SignatureRef {        name: "Kim Altintop".into(),        email: "kim@eagain.st".into(),        time: "1631514803 +0200",    };    let backing = commit_fixture("message-with-footer.txt")?;    let tree = fixture_oid_hex("25a19c29c5e36884c1ad85d8faf23f1246b7961b");    let parent = fixture_oid_hex("699ae71105dddfcbb9711ed3a92df09e91a04e90");    let commit = CommitRef::from_bytes(&backing, crate::fixture_hash_kind())?;    assert_eq!(        commit,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent.as_bytes().as_bstr()]),            author: "Kim Altintop <kim@eagain.st> 1631514803 +0200".as_bytes().as_bstr(),            committer: "Kim Altintop <kim@eagain.st> 1631514803 +0200".as_bytes().as_bstr(),            encoding: None,            message: b"test: use gitoxide for link-git-protocol tests Showcases the abilities of the `git-repository` crate, and standardiseson using the re-exports through this crate for [stability] reasonsinstead of depending directly on the lower-level crates. [stability]: https://github.com/Byron/gitoxide/blob/main/STABILITY.md Signed-off-by: Sebastian Thiel <sebastian.thiel@icloud.com>Signed-off-by: Kim Altintop <kim@eagain.st>"                .as_bstr(),            extra_headers: vec![(b"gpgsig".as_bstr(), b"-----BEGIN PGP SIGNATURE-----\n\niHUEABYIAB0WIQSuZwcGWSQItmusNgR5URpSUCnwXQUCYT7xpAAKCRB5URpSUCnw\nXWB3AP9q323HlxnI8MyqszNOeYDwa7Y3yEZaUM2y/IRjz+z4YQEAq0yr1Syt3mrK\nOSFCqL2vDm3uStP+vF31f6FnzayhNg0=\n=Mhpp\n-----END PGP SIGNATURE-----\n".as_bstr().into())]        }    );    assert_eq!(commit.author()?, kim);    assert_eq!(commit.committer()?, kim);    let message = commit.message();    assert_eq!(message.title, "test: use gitoxide for link-git-protocol tests");    assert_eq!(        message.body,        Some(            "Showcases the abilities of the `git-repository` crate, and standardiseson using the re-exports through this crate for [stability] reasonsinstead of depending directly on the lower-level crates. [stability]: https://github.com/Byron/gitoxide/blob/main/STABILITY.md Signed-off-by: Sebastian Thiel <sebastian.thiel@icloud.com>Signed-off-by: Kim Altintop <kim@eagain.st>"                .into()        )    );    assert_eq!(        commit.message_summary(),        message.summary(),        "both summaries are the same, but the commit one does less parsing"    );    let body = message.body().expect("body present");    assert_eq!(        body.as_ref(),        b"Showcases the abilities of the `git-repository` crate, and standardiseson using the re-exports through this crate for [stability] reasonsinstead of depending directly on the lower-level crates. [stability]: https://github.com/Byron/gitoxide/blob/main/STABILITY.md"            .as_bstr(),        "body doesn't contain footer"    );    assert_eq!(        body.trailers().collect::<Vec<_>>(),        vec![            TrailerRef {                token: "Signed-off-by".into(),                value: b"Sebastian Thiel <sebastian.thiel@icloud.com>".as_bstr().into()            },            TrailerRef {                token: "Signed-off-by".into(),                value: b"Kim Altintop <kim@eagain.st>".as_bstr().into()            }        ]    );    assert_eq!(        body.trailers().collect::<Vec<_>>(),        commit.message_trailers().collect::<Vec<_>>(),        "messages trailers are accessible on commit level and yield the same result"    );    Ok(())} #[test]fn merge() -> crate::Result {    let tree = fixture_oid_hex("0cf16ce8e229b59a761198975f0c0263229faf82");    let parent_a = fixture_oid_hex("6a6054db4ce3c1e4e6a37f8c4d7acb63a4d6ad71");    let parent_b = fixture_oid_hex("c91d592913d47ac4e4a76daf16fd649b276e211e");    assert_eq!(        CommitRef::from_bytes(&commit_fixture("merge.txt")?, crate::fixture_hash_kind())?,        CommitRef {            tree: tree.as_bytes().as_bstr(),            parents: SmallVec::from(vec![parent_a.as_bytes().as_bstr(), parent_b.as_bytes().as_bstr()]),            author: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592454703 +0800".as_bstr(),            committer: b"Sebastian Thiel <sebastian.thiel@icloud.com> 1592454738 +0800".as_bstr(),            encoding: Some("ISO-8859-1".into()),            message: b"Merge branch 'branch'".as_bstr(),            extra_headers: vec![]        }    );    Ok(())} #[test]fn newline_right_after_signature_multiline_header_sha1() -> crate::Result {    let fixture = commit_fixture("signed-whitespace.txt")?;    let commit = CommitRef::from_bytes(&fixture, crate::fixture_hash_kind())?;    let pgp_sig = crate::commit::OTHER_SIGNATURE.as_bstr();    assert_eq!(commit.extra_headers[0].1.as_ref(), pgp_sig);    assert_eq!(        commit.extra_headers().pgp_signature(),        (crate::fixture_hash_kind() == gix_hash::Kind::Sha1).then_some(pgp_sig),        "a `gpgsig` header is only the active signature for SHA-1 commits"    );    assert_eq!(        commit.extra_headers().find(gix_object::commit::SIGNATURE_FIELD_NAME),        Some(pgp_sig)    );    assert_eq!(commit.extra_headers().find_pos("gpgsig"), Some(0));    assert_eq!(commit.extra_headers().find_pos("something else"), None);    assert!(commit.message.starts_with(b"Rollup"));    Ok(())} #[test]#[cfg(feature = "sha256")]fn sha256_commits_use_their_own_signature_header() -> crate::Result {    let data = b"tree 0000000000000000000000000000000000000000000000000000000000000000\n\author A <a@example.com> 0 +0000\n\committer A <a@example.com> 0 +0000\n\gpgsig-sha256 signature\n\\nmessage\n";    let commit = CommitRef::from_bytes(data, gix_hash::Kind::Sha256)?;    assert_eq!(commit.extra_headers().pgp_signature(), Some(b"signature".as_bstr()));    assert!(gix_object::CommitRefIter::signature(data, gix_hash::Kind::Sha256)?.is_some());    Ok(())} #[test]fn bogus_multi_gpgsig_header_sha1() -> crate::Result {    let fixture = commit_fixture("bogus-gpgsig-lines-in-git.git.txt")?;    let commit = CommitRef::from_bytes(&fixture, crate::fixture_hash_kind())?;    let pgp_sig = b"-----BEGIN PGP SIGNATURE-----".as_bstr();    assert_eq!(        commit.extra_headers().pgp_signature(),        (crate::fixture_hash_kind() == gix_hash::Kind::Sha1).then_some(pgp_sig),        "a `gpgsig` header is only the active signature for SHA-1 commits"    );    assert_eq!(        commit.extra_headers().find_all("gpgsig").count(),        17,        "Each signature header line is prefixed with `gpgsig` here, so we parse it as extra header"    );    assert!(commit.message.starts_with(b"pretty: %G[?GS] placeholders"));     let mut buf = Vec::<u8>::new();    commit.write_to(&mut buf)?;    let hash_kind = crate::fixture_hash_kind();    let expected = gix_object::compute_hash(hash_kind, gix_object::Kind::Commit, &fixture)?;    let actual = gix_object::compute_hash(hash_kind, gix_object::Kind::Commit, &buf)?;    assert_eq!(actual, expected, "round-tripping works despite the strangeness");    Ok(())} fn commit_fixture(path: &str) -> crate::Result<Vec<u8>> {    crate::object_fixture(&format!("commit/{path}"))} fn fixture_oid_hex(hex: &str) -> String {    fixture_oid(hex).to_hex().to_string()}