From da953f06939e91c3c0dae25012a44c3c82ea0182 Mon Sep 17 00:00:00 2001
From: Olivier Goffart <olivier.goffart@slint.dev>
Date: Sun, 24 Dec 2023 08:48:03 +0100
Subject: [PATCH] Don't throw an error when there is no features in Cargo.toml

Because this could happen if the Cargo.toml is "normalized".
Instead, show a note in the documentation

Fixes #20
---
 lib.rs | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/lib.rs b/lib.rs
index 480f3bc..21f6520 100644
--- a/lib.rs
+++ b/lib.rs
@@ -359,7 +359,7 @@ fn process_toml(cargo_toml: &str, args: &Args) -> Result<String, String> {
         return Err("Found comment not associated with a feature".into());
     }
     if features.is_empty() {
-        return Err("Could not find documented features in Cargo.toml".into());
+        return Ok("*No documented features in Cargo.toml*".into());
     }
     let mut result = String::new();
     for (f, top, comment) in features {
@@ -585,26 +585,30 @@ default = ["feat1", "something_else"]
     }
 
     #[test]
-    fn parse_error1() {
-        test_error(
+    fn no_features() {
+        let r = process_toml(
             r#"
 [features]
 [dependencies]
 foo = 4;
 "#,
-            "Could not find documented features",
-        );
+            &Args::default(),
+        )
+        .unwrap();
+        assert_eq!(r, "*No documented features in Cargo.toml*");
     }
 
     #[test]
-    fn parse_error2() {
-        test_error(
+    fn no_features2() {
+        let r = process_toml(
             r#"
 [packages]
 [dependencies]
 "#,
-            "Could not find documented features",
-        );
+            &Args::default(),
+        )
+        .unwrap();
+        assert_eq!(r, "*No documented features in Cargo.toml*");
     }
 
     #[test]