1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/check-cfg/empty-values.rs b/tests/ui/check-cfg/empty-values.rs
new file mode 100644
index 00000000000..9bda42e5d15
--- /dev/null
+++ b/tests/ui/check-cfg/empty-values.rs
@@ -0,0 +1,10 @@
+// Check warning for unexpected cfg value
+//
+// check-pass
+// compile-flags: --check-cfg=values() -Z unstable-options
+
+#[cfg(test = "value")]
+//~^ WARNING unexpected `cfg` condition value
+pub fn f() {}
+
+fn main() {}