1 files changed, 10 insertions, 0 deletions
diff --git a/tests/ui/parser/fn-defined-using-def.rs b/tests/ui/parser/fn-defined-using-def.rs
new file mode 100644
index 000000000..21da34c47
--- /dev/null
+++ b/tests/ui/parser/fn-defined-using-def.rs
@@ -0,0 +1,10 @@
+// Check what happens when `def` is used to define a function, instead of `fn`
+// edition:2021
+
+#![allow(dead_code)]
+
+def foo() {}
+//~^ ERROR expected one of `!` or `::`, found `foo`
+//~^^ HELP write `fn` instead of `def` to declare a function
+
+fn main() {}