1 files changed, 39 insertions, 0 deletions
diff --git a/tests/ui/methods/missing-bound-on-tuple.rs b/tests/ui/methods/missing-bound-on-tuple.rs
new file mode 100644
index 00000000000..25deabf5926
--- /dev/null
+++ b/tests/ui/methods/missing-bound-on-tuple.rs
@@ -0,0 +1,39 @@
+trait WorksOnDefault {
+    fn do_something() {}
+}
+
+impl<T: Default> WorksOnDefault for T {}
+//~^ NOTE the following trait bounds were not satisfied
+//~| NOTE unsatisfied trait bound introduced here
+
+trait Foo {}
+
+trait WorksOnFoo {
+    fn do_be_do() {}
+}
+
+impl<T: Foo> WorksOnFoo for T {}
+//~^ NOTE the following trait bounds were not satisfied
+//~| NOTE unsatisfied trait bound introduced here
+
+impl<A: Foo, B: Foo, C: Foo> Foo for (A, B, C) {}
+//~^ NOTE `Foo` is implemented for `(i32, u32, String)`
+impl Foo for i32 {}
+impl Foo for &i32 {}
+impl Foo for u32 {}
+impl Foo for String {}
+
+fn main() {
+    let _success = <(i32, u32, String)>::do_something();
+    let _failure = <(i32, &u32, String)>::do_something(); //~ ERROR E0599
+    //~^ NOTE `Default` is implemented for `(i32, u32, String)`
+    //~| NOTE function or associated item cannot be called on
+    let _success = <(i32, u32, String)>::do_be_do();
+    let _failure = <(i32, &u32, String)>::do_be_do(); //~ ERROR E0599
+    //~^ NOTE function or associated item cannot be called on
+    let _success = <(i32, u32, String)>::default();
+    let _failure = <(i32, &u32, String)>::default(); //~ ERROR E0599
+    //~^ NOTE `Default` is implemented for `(i32, u32, String)`
+    //~| NOTE function or associated item cannot be called on
+    //~| NOTE the following trait bounds were not satisfied
+}