max / makeover

Add tests to kill surviving mutants in shared crates Mutation-coverage pass against docengine, tagtree, and theme-common. Each test pins a specific decision boundary that prior tests left unconstrained — Display impls, is_empty distinguishers, http vs https arms, edit_distance arithmetic, dev_themes_dir Some/None split, etc. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Max J. <87768334+MaxJMath@users.noreply.github.com> · 2026-05-15 17:13 UTC

Commit: 8e22d89dc4224bb611dc85a743940caedd95bb04

Parent: 58bdfbf

1 file changed, +29 insertions, -0 deletions

M src/lib.rs +29

			@@ -481,6 +481,35 @@ primary = "#ff0000"
481	481		}
482	482
483	483		#[test]
	484	+	fn dev_themes_dir_returns_some_when_structure_exists() {
	485	+	// Construct a fake tree: <tmp>/leaf where <tmp>/MNW/shared/themes exists.
	486	+	// Walking up 1 level from `leaf` should locate the themes dir.
	487	+	// Catches `dev_themes_dir -> Option<PathBuf> with None` (always-None mutant).
	488	+	let root = tempfile::tempdir().unwrap();
	489	+	let leaf = root.path().join("leaf");
	490	+	std::fs::create_dir_all(&leaf).unwrap();
	491	+	let themes = root.path().join("MNW").join("shared").join("themes");
	492	+	std::fs::create_dir_all(&themes).unwrap();
	493	+
	494	+	let result = dev_themes_dir(&leaf, 1);
	495	+	// Compare canonical forms — tempfile may return paths with /private prefix on macOS.
	496	+	let result_canon = result.expect("expected Some").canonicalize().unwrap();
	497	+	let themes_canon = themes.canonicalize().unwrap();
	498	+	assert_eq!(result_canon, themes_canon);
	499	+	}
	500	+
	501	+	#[test]
	502	+	fn dev_themes_dir_returns_none_when_structure_missing() {
	503	+	// No MNW/shared/themes under the temp root → None.
	504	+	let root = tempfile::tempdir().unwrap();
	505	+	let leaf = root.path().join("leaf");
	506	+	std::fs::create_dir_all(&leaf).unwrap();
	507	+	// No themes dir created.
	508	+	let result = dev_themes_dir(&leaf, 1);
	509	+	assert!(result.is_none());
	510	+	}
	511	+
	512	+	#[test]
484	513		fn import_theme_valid() {
485	514		let src_dir = tempfile::tempdir().unwrap();
486	515		let custom_dir = tempfile::tempdir().unwrap();