1 files changed, 25 insertions, 0 deletions
diff --git a/src/test/ui/typeck/typeck-default-trait-impl-cross-crate-coherence.rs b/src/test/ui/typeck/typeck-default-trait-impl-cross-crate-coherence.rs
new file mode 100644
index 000000000..cc75cd490
--- /dev/null
+++ b/src/test/ui/typeck/typeck-default-trait-impl-cross-crate-coherence.rs
@@ -0,0 +1,25 @@
+// aux-build:tdticc_coherence_lib.rs
+#![allow(suspicious_auto_trait_impls)]
+
+// Test that we do not consider associated types to be sendable without
+// some applicable trait bound (and we don't ICE).
+
+#![feature(negative_impls)]
+
+extern crate tdticc_coherence_lib as lib;
+
+use lib::DefaultedTrait;
+
+struct A;
+impl DefaultedTrait for (A,) { } //~ ERROR E0117
+
+struct B;
+impl !DefaultedTrait for (B,) { } //~ ERROR E0117
+
+struct C;
+struct D<T>(T);
+impl DefaultedTrait for Box<C> { } //~ ERROR E0321
+impl DefaultedTrait for lib::Something<C> { } //~ ERROR E0117
+impl DefaultedTrait for D<C> { } // OK
+
+fn main() { }