Support stable versions in tests

actix-web-codegen/tests/trybuild.rs

@@ -1,4 +1,3 @@
-#[rustversion::attr(not(stable(1.42)), ignore)]
 #[test]
 fn compile_macros() {
     let t = trybuild::TestCases::new();
@@ -7,7 +6,22 @@ fn compile_macros() {
     t.compile_fail("tests/trybuild/simple-fail.rs");
 
     t.pass("tests/trybuild/route-ok.rs");
-    t.compile_fail("tests/trybuild/route-missing-method-fail.rs");
     t.compile_fail("tests/trybuild/route-duplicate-method-fail.rs");
     t.compile_fail("tests/trybuild/route-unexpected-method-fail.rs");
+
+    test_route_missing_method(&t)
 }
+
+#[rustversion::stable(1.42)]
+fn test_route_missing_method(t: &trybuild::TestCases) {
+    t.compile_fail("tests/trybuild/route-missing-method-fail-msrv.rs");
+}
+
+#[rustversion::not(stable(1.42))]
+#[rustversion::not(nightly)]
+fn test_route_missing_method(t: &trybuild::TestCases) {
+    t.compile_fail("tests/trybuild/route-missing-method-fail.rs");
+}
+
+#[rustversion::nightly]
+fn test_route_missing_method(_t: &trybuild::TestCases) {}

actix-web-codegen/tests/trybuild/route-missing-method-fail-msrv.rs

@@ -0,0 +1,15 @@
+use actix_web::*;
+
+#[route("/")]
+async fn index() -> impl Responder {
+    HttpResponse::Ok()
+}
+
+#[actix_web::main]
+async fn main() {
+    let srv = test::start(|| App::new().service(index));
+
+    let request = srv.get("/");
+    let response = request.send().await.unwrap();
+    assert!(response.status().is_success());
+}

actix-web-codegen/tests/trybuild/route-missing-method-fail-msrv.stderr

@@ -0,0 +1,11 @@
+error: The #[route(..)] macro requires at least one `method` attribute
+ --> $DIR/route-missing-method-fail-msrv.rs:3:1
+  |
+3 | #[route("/")]
+  | ^^^^^^^^^^^^^
+
+error[E0425]: cannot find value `index` in this scope
+  --> $DIR/route-missing-method-fail-msrv.rs:10:49
+   |
+10 |     let srv = test::start(|| App::new().service(index));
+   |                                                 ^^^^^ not found in this scope

actix-web-codegen/tests/trybuild/route-missing-method-fail.stderr

@@ -3,6 +3,8 @@ error: The #[route(..)] macro requires at least one `method` attribute
   |
 3 | #[route("/")]
   | ^^^^^^^^^^^^^
+  |
+  = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0425]: cannot find value `index` in this scope
   --> $DIR/route-missing-method-fail.rs:10:49