diff --git a/tests/ui/test-attrs/test-function-signature.rs b/tests/ui/test-attrs/test-function-signature.rs new file mode 100644 index 0000000000000..9e86e9209e320 --- /dev/null +++ b/tests/ui/test-attrs/test-function-signature.rs @@ -0,0 +1,31 @@ +// compile-flags: --test + +#[test] +fn foo() -> Result<(), ()> { + Ok(()) +} + +#[test] +fn bar() -> i32 { //~ ERROR the trait bound `i32: Termination` is not satisfied + 0 +} + +#[test] +fn baz(val: i32) {} //~ ERROR functions used as tests can not have any arguments + +#[test] +fn lifetime_generic<'a>() -> Result<(), &'a str> { + Err("coerce me to any lifetime") +} + +#[test] +fn type_generic() {} //~ ERROR functions used as tests can not have any non-lifetime generic parameters + +#[test] +fn const_generic() {} //~ ERROR functions used as tests can not have any non-lifetime generic parameters + +// Regression test for . This used to ICE. +fn nested() { + #[test] + fn foo(arg: ()) {} //~ ERROR functions used as tests can not have any arguments +} diff --git a/tests/ui/test-attrs/test-function-signature.stderr b/tests/ui/test-attrs/test-function-signature.stderr new file mode 100644 index 0000000000000..abdb30dc9312b --- /dev/null +++ b/tests/ui/test-attrs/test-function-signature.stderr @@ -0,0 +1,39 @@ +error: functions used as tests can not have any arguments + --> $DIR/test-function-signature.rs:14:1 + | +LL | fn baz(val: i32) {} + | ^^^^^^^^^^^^^^^^^^^ + +error: functions used as tests can not have any non-lifetime generic parameters + --> $DIR/test-function-signature.rs:22:1 + | +LL | fn type_generic() {} + | ^^^^^^^^^^^^^^^^^^^^^^^ + +error: functions used as tests can not have any non-lifetime generic parameters + --> $DIR/test-function-signature.rs:25:1 + | +LL | fn const_generic() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: functions used as tests can not have any arguments + --> $DIR/test-function-signature.rs:30:5 + | +LL | fn foo(arg: ()) {} + | ^^^^^^^^^^^^^^^^^^ + +error[E0277]: the trait bound `i32: Termination` is not satisfied + --> $DIR/test-function-signature.rs:9:13 + | +LL | #[test] + | ------- in this procedural macro expansion +LL | fn bar() -> i32 { + | ^^^ the trait `Termination` is not implemented for `i32` + | +note: required by a bound in `assert_test_result` + --> $SRC_DIR/test/src/lib.rs:LL:COL + = note: this error originates in the attribute macro `test` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 5 previous errors + +For more information about this error, try `rustc --explain E0277`.