Favor Repository::workdir() over path().parent()

This more clearly errors in case of bare repositories instead of using
the parent directory of the bare repository, for the hooks tested here,
none of which support the hooks tested.

Author: Naseschwarz

asyncgit/src/sync/hooks.rs

@@ -97,7 +97,7 @@ mod tests {
 	#[test]
 	fn test_post_commit_hook_reject_in_subfolder() {
 		let (_td, repo) = repo_init().unwrap();
-		let root = repo.path().parent().unwrap();
+		let root = repo.workdir().unwrap();
 
 		let hook = b"#!/bin/sh
 	echo 'rejected'
@@ -130,7 +130,7 @@ mod tests {
 	#[cfg(unix)]
 	fn test_pre_commit_workdir() {
 		let (_td, repo) = repo_init().unwrap();
-		let root = repo.path().parent().unwrap();
+		let root = repo.workdir().unwrap();
 		let repo_path: &RepoPath =
 			&root.as_os_str().to_str().unwrap().into();
 		let workdir =
@@ -160,7 +160,7 @@ mod tests {
 	#[test]
 	fn test_hooks_commit_msg_reject_in_subfolder() {
 		let (_td, repo) = repo_init().unwrap();
-		let root = repo.path().parent().unwrap();
+		let root = repo.workdir().unwrap();
 
 		let hook = b"#!/bin/sh
 	echo 'msg' > $1
@@ -196,7 +196,7 @@ mod tests {
 	fn test_hooks_commit_msg_reject_in_hooks_folder_githooks_moved_absolute(
 	) {
 		let (_td, repo) = repo_init().unwrap();
-		let root = repo.path().parent().unwrap();
+		let root = repo.workdir().unwrap();
 		let mut config = repo.config().unwrap();
 
 		const HOOKS_DIR: &'static str = "my_hooks";