tests: minor docstring updates

src/model.rs

@@ -1195,7 +1195,7 @@ pub fn display_tree(tree: &Tree, path_str: &str, tree_branches: bool, verbose: u
 /// Print a tree if it exists, otherwise print a missing tree
 pub fn print_tree(tree: &Tree, tree_branches: bool, verbose: u8, quiet: bool) -> bool {
     if let Ok(path) = tree.path_as_ref() {
-        // Sparse gardens/missing trees are ok -> skip these entries.
+        // Sparse gardens/missing trees are expected. Skip these entries.
         if !std::path::PathBuf::from(&path).exists() {
             if !quiet {
                 eprintln!("{}", display_missing_tree(tree, path, verbose));

tests/common/mod.rs

@@ -278,14 +278,14 @@ impl<'a> BareRepoFixture<'a> {
     }
 
     /// Asserts that the path is a Git worktree.
-    /// Returns a pathbuf for the specified worktree.
+    /// Returns a PathBuf for the specified worktree.
     pub fn worktree_pathbuf(&self, path: &str) -> std::path::PathBuf {
         std::path::PathBuf::from(self.worktree(path))
     }
 }
 
 impl Drop for BareRepoFixture<'_> {
-    /// Teardown the test repository.
+    /// Teardown the test repository filesystem data.
     fn drop(&mut self) {
         teardown_tmp_test_data(&self.root());
     }