From d26a5c58053ace82b892e566d9c8b9a5df8c9b39 Mon Sep 17 00:00:00 2001
From: Nathan Fisher <nfisher.sr@gmail.com>
Date: Fri, 15 Dec 2023 19:04:44 -0500
Subject: [PATCH] Add test for creating, storing and loading hardlink nodes

---
 src/node.rs | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/node.rs b/src/node.rs
index 3d5548a..f992755 100644
--- a/src/node.rs
+++ b/src/node.rs
@@ -313,6 +313,7 @@ impl Node {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use core::panic;
     use std::{fmt::Write, fs::remove_file};
 
     static LI: &[u8] = include_bytes!("../test/li.txt");
@@ -456,7 +457,7 @@ mod tests {
             assert_eq!(tgt, "li.txt");
             node.write(&mut writer).unwrap();
         }
-        let fd = std::fs::File::open("test/lilnk.node").unwrap();
+        let fd = fs::File::open("test/lilnk.node").unwrap();
         let mut reader = BufReader::new(fd);
         let node = Node::read(&mut reader).unwrap();
         let FileType::SoftLink(ref tgt) = node.filetype else {
@@ -466,6 +467,34 @@ mod tests {
         assert_eq!(tgt, "li.txt");
     }
 
+    #[test]
+    fn load_store_hardlink() {
+        {
+            let _res = remove_file("test/lihlnk.txt");
+            fs::hard_link("test/li.txt", "test/lihlnk.txt").unwrap();
+            let _res = remove_file("test/lihlnk.node");
+            let fd = std::fs::File::create("test/lihlnk.node").unwrap();
+            let mut writer = std::io::BufWriter::new(fd);
+            let links = Mutex::new(HashMap::new());
+            let _node = Node::from_path("test/li.txt", Algorithm::Sha1, &links).unwrap();
+            let node = Node::from_path("test/lihlnk.txt", Algorithm::Sha1, &links).unwrap();
+            let FileType::HardLink(ref tgt) = node.filetype else {
+                eprintln!("Created wrong filetype: {:?}", node.filetype);
+                panic!();
+            };
+            assert_eq!(tgt, "test/li.txt");
+            node.write(&mut writer).unwrap();
+        }
+        let fd = fs::File::open("test/lihlnk.node").unwrap();
+        let mut reader = BufReader::new(fd);
+        let node = Node::read(&mut reader).unwrap();
+        let FileType::HardLink(ref tgt) = node.filetype else {
+            eprintln!("Read incorrect filetype: {:?}", node.filetype);
+            panic!();
+        };
+        assert_eq!(tgt, "test/li.txt");
+    }
+
     #[test]
     fn extract_file() {
         let links = Mutex::new(HashMap::new());