From 94ca87eb05cb8d26bf2cfe58e4c6523ee5c056ba Mon Sep 17 00:00:00 2001
From: hi-rustin <rustin.liu@gmail.com>
Date: Tue, 7 Nov 2023 20:03:35 +0800
Subject: [PATCH] Add test for empty feature name

Signed-off-by: hi-rustin <rustin.liu@gmail.com>
---
 tests/testsuite/features.rs | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/tests/testsuite/features.rs b/tests/testsuite/features.rs
index 236b6f65181f..e44807941d10 100644
--- a/tests/testsuite/features.rs
+++ b/tests/testsuite/features.rs
@@ -35,6 +35,37 @@ Caused by:
         .run();
 }
 
+#[cargo_test]
+fn empty_feature_name() {
+    let p = project()
+        .file(
+            "Cargo.toml",
+            r#"
+                [package]
+                name = "foo"
+                version = "0.0.1"
+                authors = []
+
+                [features]
+                "" = []
+            "#,
+        )
+        .file("src/main.rs", "")
+        .build();
+
+    p.cargo("check")
+        .with_status(101)
+        .with_stderr(
+            "\
+[ERROR] failed to parse manifest at `[..]`
+
+Caused by:
+  feature name cannot be empty
+",
+        )
+        .run();
+}
+
 #[cargo_test]
 fn same_name() {
     // Feature with the same name as a dependency.