1 files changed, 64 insertions, 0 deletions
diff --git a/src/test/ui/on-unimplemented/bad-annotation.rs b/src/test/ui/on-unimplemented/bad-annotation.rs
new file mode 100644
index 000000000..f05436b8c
--- /dev/null
+++ b/src/test/ui/on-unimplemented/bad-annotation.rs
@@ -0,0 +1,64 @@
+// ignore-tidy-linelength
+
+#![feature(rustc_attrs)]
+
+#![allow(unused)]
+
+#[rustc_on_unimplemented = "test error `{Self}` with `{Bar}` `{Baz}` `{Quux}`"]
+trait Foo<Bar, Baz, Quux>
+{}
+
+#[rustc_on_unimplemented="a collection of type `{Self}` cannot be built from an iterator over elements of type `{A}`"]
+trait MyFromIterator<A> {
+    /// Builds a container with elements from an external iterator.
+    fn my_from_iter<T: Iterator<Item=A>>(iterator: T) -> Self;
+}
+
+#[rustc_on_unimplemented]
+//~^ ERROR malformed `rustc_on_unimplemented` attribute
+trait BadAnnotation1
+{}
+
+#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{C}>`"]
+//~^ ERROR there is no parameter `C` on trait `BadAnnotation2`
+trait BadAnnotation2<A,B>
+{}
+
+#[rustc_on_unimplemented = "Unimplemented trait error on `{Self}` with params `<{A},{B},{}>`"]
+//~^ only named substitution parameters are allowed
+trait BadAnnotation3<A,B>
+{}
+
+#[rustc_on_unimplemented(lorem="")]
+//~^ this attribute must have a valid
+trait BadAnnotation4 {}
+
+#[rustc_on_unimplemented(lorem(ipsum(dolor)))]
+//~^ this attribute must have a valid
+trait BadAnnotation5 {}
+
+#[rustc_on_unimplemented(message="x", message="y")]
+//~^ this attribute must have a valid
+trait BadAnnotation6 {}
+
+#[rustc_on_unimplemented(message="x", on(desugared, message="y"))]
+//~^ this attribute must have a valid
+trait BadAnnotation7 {}
+
+#[rustc_on_unimplemented(on(), message="y")]
+//~^ empty `on`-clause
+trait BadAnnotation8 {}
+
+#[rustc_on_unimplemented(on="x", message="y")]
+//~^ this attribute must have a valid
+trait BadAnnotation9 {}
+
+#[rustc_on_unimplemented(on(x="y"), message="y")]
+trait BadAnnotation10 {}
+
+#[rustc_on_unimplemented(on(desugared, on(desugared, message="x")), message="y")]
+//~^ this attribute must have a valid
+trait BadAnnotation11 {}
+
+pub fn main() {
+}