1 files changed, 15 insertions, 0 deletions
diff --git a/tests/ui/compare-method/region-unrelated.rs b/tests/ui/compare-method/region-unrelated.rs
new file mode 100644
index 000000000..9730c9dfe
--- /dev/null
+++ b/tests/ui/compare-method/region-unrelated.rs
@@ -0,0 +1,15 @@
+// Test that we elaborate `Type: 'region` constraints and infer various important things.
+
+trait Master<'a, T: ?Sized, U> {
+    fn foo() where T: 'a;
+}
+
+// `U: 'a` does not imply `V: 'a`
+impl<'a, U, V> Master<'a, U, V> for () {
+    fn foo() where V: 'a { }
+    //~^ ERROR impl has stricter requirements than trait
+}
+
+fn main() {
+    println!("Hello, world!");
+}