Collect hardlink facts from archive artifacts

1 files changed, 37 insertions, 0 deletions

diff --git a/tests/compare.rs b/tests/compare.rs
index 37135a7..63e4a4f 100644
--- a/tests/compare.rs
+++ b/tests/compare.rs
@@ -217,6 +217,43 @@ fn normalizes_legacy_dot_prefixed_archive_paths_before_comparison() {
 }
 
 #[test]
+fn collects_hardlink_targets_from_an_archive_for_semantic_comparison() {
+    let fixture = tempdir().expect("temporary directory");
+    let artifact = fixture.path().join("legacy.tar");
+    let file = fs::File::create(&artifact).expect("create legacy archive");
+    let mut archive = tar::Builder::new(file);
+    let mut header = tar::Header::new_gnu();
+    header.set_size(11);
+    header.set_mode(0o644);
+    header.set_cksum();
+    archive
+        .append_data(&mut header, "./usr/bin/controller", Cursor::new(b"controller\n"))
+        .expect("append regular member");
+    let mut link_header = tar::Header::new_gnu();
+    link_header.set_entry_type(tar::EntryType::Link);
+    link_header.set_size(0);
+    link_header.set_cksum();
+    archive
+        .append_link(
+            &mut link_header,
+            "./usr/bin/controller-link",
+            "./usr/bin/controller",
+        )
+        .expect("append hardlink member");
+    archive.finish().expect("finish legacy archive");
+
+    let manifest = ArtifactManifest::collect_archive(&artifact).expect("collect archive facts");
+
+    assert!(
+        manifest.files.iter().any(|record| {
+            record == &FileRecord::hardlink("usr/bin/controller-link", "usr/bin/controller")
+        }),
+        "collected files: {:?}",
+        manifest.files
+    );
+}
+
+#[test]
 fn normalizes_dot_prefixed_paths_from_a_legacy_tree_archive() {
     let fixture = tempdir().expect("temporary directory");
     let rootfs = fixture.path().join("rootfs");