1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/parser/duplicate-where-clauses.rs b/src/test/ui/parser/duplicate-where-clauses.rs
new file mode 100644
index 000000000..9eb2ffb06
--- /dev/null
+++ b/src/test/ui/parser/duplicate-where-clauses.rs
@@ -0,0 +1,19 @@
+struct A where (): Sized where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+fn b() where (): Sized where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+enum C where (): Sized where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+struct D where (): Sized, where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+fn e() where (): Sized, where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+enum F where (): Sized, where (): Sized {}
+//~^ ERROR cannot define duplicate `where` clauses on an item
+
+fn main() {}