From 76db02768e4682e3a36da47db5b54c85bf5d48dd Mon Sep 17 00:00:00 2001
From: Zicklag <zicklag@katharostech.com>
Date: Thu, 28 Jan 2021 18:56:22 -0600
Subject: [PATCH] Fix Bug in Asset Server Error Message Formatter

---
 crates/bevy_asset/src/asset_server.rs | 31 ++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/crates/bevy_asset/src/asset_server.rs b/crates/bevy_asset/src/asset_server.rs
index 42839f99c6a68d..f1aac87b630f79 100644
--- a/crates/bevy_asset/src/asset_server.rs
+++ b/crates/bevy_asset/src/asset_server.rs
@@ -30,7 +30,7 @@ pub enum AssetServerError {
 }
 
 fn format_missing_asset_ext(exts: &[String]) -> String {
-    if exts.is_empty() {
+    if !exts.is_empty() {
         format!(
             " for the following extension{}: {}",
             if exts.len() > 1 { "s" } else { "" },
@@ -572,6 +572,35 @@ mod test {
         )
     }
 
+    #[test]
+    fn missing_asset_loader_error_messages() {
+        assert_eq!(
+            format!(
+                "{}",
+                AssetServerError::MissingAssetLoader { extensions: vec![] }
+            ),
+            "no `AssetLoader` found"
+        );
+        assert_eq!(
+            format!(
+                "{}",
+                AssetServerError::MissingAssetLoader {
+                    extensions: vec!["png".into()]
+                }
+            ),
+            "no `AssetLoader` found for the following extension: png"
+        );
+        assert_eq!(
+            format!(
+                "{}",
+                AssetServerError::MissingAssetLoader {
+                    extensions: vec!["1.2.png".into(), "2.png".into(), "png".into()]
+                }
+            ),
+            "no `AssetLoader` found for the following extensions: 1.2.png, 2.png, png"
+        );
+    }
+
     #[test]
     fn filename_with_dots() {
         let asset_server = setup();