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mod.rs
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mod.rs
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use git_repository::prelude::ObjectIdExt;
use git_repository::revision::Spec;
use git_testtools::hex_to_id;
mod util;
pub use util::*;
mod ambiguous;
mod regex;
mod traverse {
use crate::revision::spec::from_bytes::{parse_spec, repo};
use git_repository::prelude::ObjectIdExt;
use git_repository::revision::Spec;
use git_testtools::hex_to_id;
#[test]
fn parent() {
let repo = repo("complex_graph").unwrap();
assert_eq!(
parse_spec("a^1", &repo).unwrap(),
Spec::from_id(hex_to_id("5b3f9e24965d0b28780b7ce5daf2b5b7f7e0459f").attach(&repo))
);
assert_eq!(parse_spec("a", &repo).unwrap(), parse_spec("a^0", &repo).unwrap(),);
assert_eq!(
parse_spec("a^42", &repo).unwrap_err().to_string(),
"Commit 55e825e has 2 parents and parent number 42 is out of range"
);
}
#[test]
fn ancestors() {
let repo = repo("complex_graph").unwrap();
assert_eq!(
parse_spec("a~1", &repo).unwrap(),
Spec::from_id(hex_to_id("5b3f9e24965d0b28780b7ce5daf2b5b7f7e0459f").attach(&repo))
);
assert_eq!(parse_spec("a", &repo).unwrap(), parse_spec("a~0", &repo).unwrap(),);
assert_eq!(
parse_spec("a~3", &repo).unwrap(),
Spec::from_id(hex_to_id("9f9eac6bd1cd4b4cc6a494f044b28c985a22972b").attach(&repo))
);
assert_eq!(
parse_spec("a~42", &repo).unwrap_err().to_string(),
"Commit 55e825e has 3 ancestors along the first parent and ancestor number 42 is out of range"
);
}
}
mod index {
use crate::revision::spec::from_bytes::{parse_spec, repo};
use git_repository::prelude::ObjectIdExt;
use git_repository::revision::Spec;
use git_testtools::hex_to_id;
#[test]
fn at_stages() {
let repo = repo("complex_graph").unwrap();
assert_eq!(
parse_spec(":file", &repo).unwrap(),
Spec::from_id(hex_to_id("fe27474251f7f8368742f01fbd3bd5666b630a82").attach(&repo))
);
assert_eq!(
parse_spec(":1:file", &repo).unwrap_err().to_string(),
"Path \"file\" did not exist in index at stage 1. It does exist at stage 0. It exists on disk",
);
assert_eq!(
parse_spec(":foo", &repo).unwrap_err().to_string(),
"Path \"foo\" did not exist in index at stage 0. It does not exist on disk",
);
}
}
#[test]
fn names_are_made_available_via_references() {
let repo = repo("complex_graph").unwrap();
let spec = parse_spec_no_baseline("main..g", &repo).unwrap();
let (a, b) = spec.clone().into_references();
assert_eq!(
a.as_ref().map(|r| r.name().as_bstr().to_string()),
Some("refs/heads/main".into())
);
assert_eq!(
b.as_ref().map(|r| r.name().as_bstr().to_string()),
Some("refs/heads/g".into())
);
assert_eq!(spec.first_reference(), a.as_ref().map(|r| &r.inner));
assert_eq!(spec.second_reference(), b.as_ref().map(|r| &r.inner));
let spec = parse_spec_no_baseline("@", &repo).unwrap();
assert_eq!(spec.second_reference(), None);
assert_eq!(
spec.first_reference().map(|r| r.name.as_bstr().to_string()),
Some("HEAD".into())
);
}
#[test]
fn bad_objects_are_valid_until_they_are_actually_read_from_the_odb() {
{
let repo = repo("blob.bad").unwrap();
assert_eq!(
parse_spec("e328", &repo).unwrap(),
Spec::from_id(hex_to_id("e32851d29feb48953c6f40b2e06d630a3c49608a").attach(&repo)),
"we are able to return objects even though they are 'bad' when trying to decode them, like git",
);
assert_eq!(
format!("{:?}", parse_spec("e328^{object}", &repo).unwrap_err()),
r#"FindObject(Find(Loose(Decode(ObjectHeader(InvalidObjectKind("bad"))))))"#,
"Now we enforce the object to exist and be valid, as ultimately it wants to match with a certain type"
);
}
{
let repo = repo("blob.corrupt").unwrap();
assert_eq!(
parse_spec("cafea", &repo).unwrap(),
Spec::from_id(hex_to_id("cafea31147e840161a1860c50af999917ae1536b").attach(&repo))
);
assert_eq!(
&format!("{:?}", parse_spec("cafea^{object}", &repo).unwrap_err())[..80],
r#"FindObject(Find(Loose(DecompressFile { source: Inflate(DecompressError(General {"#
);
}
}
#[test]
fn access_blob_through_tree() {
let repo = repo("ambiguous_blob_tree_commit").unwrap();
assert_eq!(
parse_spec("0000000000cdc:a0blgqsjc", &repo).unwrap(),
Spec::from_id(hex_to_id("0000000000b36b6aa7ea4b75318ed078f55505c3").attach(&repo))
);
assert_eq!(
parse_spec("0000000000cdc:missing", &repo).unwrap_err().to_string(),
"Could not find path \"missing\" in tree 0000000000c of parent object 0000000000c"
);
}