Simplify test

asyncgit/src/sync/logwalker.rs

@@ -135,8 +135,8 @@ mod tests {
 	use crate::error::Result;
 	use crate::sync::RepoPath;
 	use crate::sync::{
-		commit, commit_files::get_commit_diff, get_commits_info,
-		stage_add_file, tests::repo_init_empty,
+		commit, get_commits_info, stage_add_file,
+		tests::repo_init_empty,
 	};
 	use pretty_assertions::assert_eq;
 	use std::{fs::File, io::Write, path::Path};
@@ -225,24 +225,12 @@ mod tests {
 		let _third_commit_id = commit(&repo_path, "commit3").unwrap();
 
 		let repo_path_clone = repo_path.clone();
-		let diff_contains_baz = move |repo: &Repository,
-		                              commit_id: &CommitId|
-		      -> Result<bool> {
-			let diff = get_commit_diff(
-				&repo_path_clone,
-				&repo,
-				*commit_id,
-				Some("baz".into()),
-			)?;
-
-			let contains_file = diff.deltas().len() > 0;
-
-			Ok(contains_file)
-		};
+		let diff_contains_baz =
+			diff_contains_file(repo_path_clone, "baz".into());
 
 		let mut items = Vec::new();
 		let mut walker = LogWalker::new(&repo, 100)?
-			.filter(Some(Arc::new(Box::new(diff_contains_baz))));
+			.filter(Some(diff_contains_baz));
 		walker.read(&mut items).unwrap();
 
 		assert_eq!(items.len(), 1);