From b0f34d324dd2b8ed37b51a14dd653af5be46d87c Mon Sep 17 00:00:00 2001
From: Armin Brauns <armin.brauns@embedded-solutions.at>
Date: Mon, 14 Nov 2022 13:34:57 +0100
Subject: [PATCH] ignore/types: add automated test for sortedness

---
 crates/ignore/src/default_types.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/crates/ignore/src/default_types.rs b/crates/ignore/src/default_types.rs
index 3b43cba0f7..e6a630ab8d 100644
--- a/crates/ignore/src/default_types.rs
+++ b/crates/ignore/src/default_types.rs
@@ -290,3 +290,22 @@ pub const DEFAULT_TYPES: &[(&str, &[&str])] = &[
     ]),
     ("zstd", &["*.zst", "*.zstd"]),
 ];
+
+#[test]
+fn test_default_types_are_sorted() {
+    let mut names = DEFAULT_TYPES.iter().map(|(name, _exts)| name);
+
+    if let Some(first) = names.next() {
+        let mut previous_name = first;
+        for name in names {
+            assert!(
+                name > previous_name,
+                r#""{}" should be sorted before "{}" in `DEFAULT_TYPES`"#,
+                name,
+                previous_name
+            );
+
+            previous_name = name;
+        }
+    }
+}