From 7f23cd63a51d45415bb3df28d053562844194767 Mon Sep 17 00:00:00 2001
From: Armin Brauns <armin.brauns@embedded-solutions.at>
Date: Mon, 14 Nov 2022 14:31:07 +0100
Subject: [PATCH] ignore/types: add automated test for sortedness

People occasionally get this wrong and I've been manually
checking it. Instead, let's have CI do it automatically.

PR #2351
---
 crates/ignore/src/default_types.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/crates/ignore/src/default_types.rs b/crates/ignore/src/default_types.rs
index ffd721dd1..e6a3a8f37 100644
--- a/crates/ignore/src/default_types.rs
+++ b/crates/ignore/src/default_types.rs
@@ -291,3 +291,26 @@ pub const DEFAULT_TYPES: &[(&str, &[&str])] = &[
     ]),
     ("zstd", &["*.zst", "*.zstd"]),
 ];
+
+#[cfg(test)]
+mod tests {
+    use super::DEFAULT_TYPES;
+
+    #[test]
+    fn default_types_are_sorted() {
+        let mut names = DEFAULT_TYPES.iter().map(|(name, _exts)| name);
+
+        let Some(mut previous_name) = names.next() else { return; };
+
+        for name in names {
+            assert!(
+                name > previous_name,
+                r#""{}" should be sorted before "{}" in `DEFAULT_TYPES`"#,
+                name,
+                previous_name
+            );
+
+            previous_name = name;
+        }
+    }
+}