litl bit more testing

src/files.rs

@@ -262,7 +262,7 @@ pub fn mime_type<T: MimeDb>(db: &T, path: &Path) -> io::Result<Option<Mime>> {
 			Err(_) => break,
 		}
 	}
-	
+
 	let read = read?;
 	let r = db.get_type(&buffer);
 
@@ -298,7 +298,7 @@ pub fn mime_type<T: MimeDb>(db: &T, path: &Path) -> io::Result<Option<Mime>> {
 /// Returns a list of known extensions for this mime type, if any.
 /// This function uses the [`Mime`]'s "essence" rather than the [`Mime`] itself - [`mime_guess::get_mime_extensions`]
 /// ignores the type suffix, treating "image/svg+xml" as "image/svg", and thus fails to find any extensions. Passing the
-/// essence_str (which includes the suffix) fixes this.
+/// `essence_str` (which includes the suffix) fixes this.
 pub fn mime_extension_lookup(essence: String) -> Option<Vec<String>> {
 	if let Ok(cache) = MIMEXT.read() {
 		if let Some(exts) = cache.get(&essence) {

src/findings.rs

@@ -13,7 +13,7 @@ use crate::files::mime_extension_lookup;
 use crate::String;
 
 /// Information about a scanned file.
-#[derive(Eq, PartialEq)]
+#[derive(Eq, PartialEq, Debug)]
 pub struct Findings {
 	/// The location of the scanned file.
 	pub file: PathBuf,
@@ -45,12 +45,6 @@ impl Ord for Findings {
 	fn cmp(&self, other: &Self) -> Ordering {
 		// files with no recommended extension should appear first, so that fif outputs the "no known extension for x"
 		// comments before the "mv x y" instructions
-		// since fif doesn't output anything for valid files, the comparison will consider any comparison involving a
-		// valid Findings to be equal, avoiding the (somewhat) expensive call to recommended_extension. after all, since
-		// fif never displays valid files, it really doesn't matter what position they end up in.
-		if self.valid || other.valid {
-			return Ordering::Equal;
-		}
 		match (self.recommended_extension(), other.recommended_extension()) {
 			(None, Some(_)) => Ordering::Greater,
 			(Some(_), None) => Ordering::Less,

src/main.rs

@@ -23,10 +23,9 @@ use std::process::exit;
 use cfg_if::cfg_if;
 use clap::Clap;
 use fif::files::{scan_directory, scan_from_walkdir};
-use fif::formats::Format;
-use fif::parameters::{OutputFormat, Prompt};
+use fif::formats::{self, Format};
+use fif::parameters::{self, OutputFormat, Prompt};
 use fif::utils::{os_name, CLAP_LONG_VERSION};
-use fif::{formats, parameters};
 use itertools::Itertools;
 use log::{debug, error, info, trace, warn, Level};
 
@@ -205,7 +204,7 @@ fn main() {
 		let mut buffered_stdout = BufWriter::new(stdout());
 
 		let result = match args.output_format {
-			// i want to simplify this to something like formats::write_all(args.output_format, ...)
+			// TODO: simplify this to something like formats::write_all(args.output_format, ...)
 			OutputFormat::Sh => formats::Shell.write_all(&mut buffered_stdout, &findings, &errors),
 			OutputFormat::PowerShell => formats::PowerShell.write_all(&mut buffered_stdout, &findings, &errors),
 			#[cfg(feature = "json")]

src/tests/mod.rs

@@ -8,6 +8,7 @@ use fif::findings::Findings;
 use fif::formats::{Format, PowerShell, Shell};
 use fif::mime_db::MimeDb;
 use fif::{String, MIMEDB};
+use itertools::Itertools;
 use maplit::{btreeset, hashmap};
 use mime::{Mime, APPLICATION_OCTET_STREAM, APPLICATION_PDF, IMAGE_JPEG, IMAGE_PNG};
 
@@ -324,7 +325,7 @@ fn identify_random_bytes() {
 	let mut bytes: [u8; BUF_SIZE * 2] = [0; BUF_SIZE * 2];
 	let mut results: BTreeMap<Mime, i32> = BTreeMap::new();
 
-	for _ in 1..10000 {
+	for _ in 1..1000 {
 		rng.fill_bytes(&mut bytes);
 		if let Some(detected_type) = MIMEDB.get_type(&bytes) {
 			*results.entry(detected_type).or_insert(0) += 1;
@@ -467,7 +468,44 @@ fn verbosity() {
 }
 
 #[test]
-/// Ensures that smart strings don't deviate from std's Strings
+/// Ensures `os_name()`'s output is the same as [`std::env::consts::OS`], capitalisation notwithstanding
+fn validate_os_name() {
+	assert_eq!(
+		fif::utils::os_name().to_lowercase(),
+		std::env::consts::OS.to_lowercase()
+	);
+}
+
+#[test]
+/// Ensures that [`Findings`] are sorted properly.
+fn sort_findings() {
+	let findings = vec![
+		Findings {
+			file: Path::new("ccc").to_path_buf(),
+			valid: false,
+			mime: IMAGE_JPEG,
+		},
+		Findings {
+			file: Path::new("bbb.xyz").to_path_buf(),
+			valid: true,
+			mime: IMAGE_PNG,
+		},
+		Findings {
+			file: Path::new("aaa").to_path_buf(),
+			valid: true,
+			mime: APPLICATION_PDF,
+		},
+	];
+	let mut findings = findings.iter().sorted_unstable();
+
+	assert_eq!(findings.next().unwrap().file, Path::new("aaa"));
+	assert_eq!(findings.next().unwrap().file, Path::new("bbb.xyz"));
+	assert_eq!(findings.next().unwrap().file, Path::new("ccc"));
+	assert_eq!(findings.next(), None);
+}
+
+#[test]
+/// Ensures that [`SmartString`]s don't deviate from std's Strings
 fn validate_string_type() {
 	use std::string::String as StdString;