coverage: Bless coverage attribute tests

Author: Zalathar

tests/ui/coverage-attr/bad-syntax.rs

@@ -18,13 +18,7 @@ fn multiple_inconsistent() {}
 #[coverage] //~ ERROR expected `coverage(off)` or `coverage(on)`
 fn bare_word() {}
 
-// FIXME(#126658): This shows as multiple different errors, one of which suggests
-// writing bare `#[coverage]`, which is not allowed.
-#[coverage = true]
-//~^ ERROR expected `coverage(off)` or `coverage(on)`
-//~| ERROR malformed `coverage` attribute input
-//~| HELP the following are the possible correct uses
-//~| SUGGESTION #[coverage(on|off)]
+#[coverage = true] //~ ERROR expected `coverage(off)` or `coverage(on)`
 fn key_value() {}
 
 #[coverage()] //~ ERROR expected `coverage(off)` or `coverage(on)`

tests/ui/coverage-attr/bad-syntax.stderr

@@ -1,18 +1,5 @@
-error: malformed `coverage` attribute input
-  --> $DIR/bad-syntax.rs:23:1
-   |
-LL | #[coverage = true]
-   | ^^^^^^^^^^^^^^^^^^
-   |
-help: the following are the possible correct uses
-   |
-LL | #[coverage(on|off)]
-   |
-LL | #[coverage]
-   |
-
 error: expected identifier, found `,`
-  --> $DIR/bad-syntax.rs:52:12
+  --> $DIR/bad-syntax.rs:46:12
    |
 LL | #[coverage(,off)]
    |            ^
@@ -51,52 +38,52 @@ LL | #[coverage]
    | ^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:23:1
+  --> $DIR/bad-syntax.rs:21:1
    |
 LL | #[coverage = true]
    | ^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:30:1
+  --> $DIR/bad-syntax.rs:24:1
    |
 LL | #[coverage()]
    | ^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:33:1
+  --> $DIR/bad-syntax.rs:27:1
    |
 LL | #[coverage(off, off)]
    | ^^^^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:36:1
+  --> $DIR/bad-syntax.rs:30:1
    |
 LL | #[coverage(off, on)]
    | ^^^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:39:1
+  --> $DIR/bad-syntax.rs:33:1
    |
 LL | #[coverage(bogus)]
    | ^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:42:1
+  --> $DIR/bad-syntax.rs:36:1
    |
 LL | #[coverage(bogus, off)]
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:45:1
+  --> $DIR/bad-syntax.rs:39:1
    |
 LL | #[coverage(off, bogus)]
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: expected `coverage(off)` or `coverage(on)`
-  --> $DIR/bad-syntax.rs:52:1
+  --> $DIR/bad-syntax.rs:46:1
    |
 LL | #[coverage(,off)]
    | ^^^^^^^^^^^^^^^^^
 
-error: aborting due to 13 previous errors
+error: aborting due to 12 previous errors
 

tests/ui/coverage-attr/name-value.rs

@@ -8,57 +8,62 @@
 // and in places that cannot have a coverage attribute, to demonstrate the
 // interaction between multiple errors.
 
-// FIXME(#126658): The error messages for using this syntax are inconsistent
-// with the error message in other cases. They also sometimes appear together
-// with other errors, and they suggest using the incorrect `#[coverage]` syntax.
-
-#[coverage = "off"] //~ ERROR malformed `coverage` attribute input
+#[coverage = "off"]
+//~^ ERROR expected `coverage(off)` or `coverage(on)`
+//~| ERROR attribute should be applied to a function definition or closure
 mod my_mod {}
 
 mod my_mod_inner {
-    #![coverage = "off"] //~ ERROR malformed `coverage` attribute input
+    #![coverage = "off"]
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
 }
 
 #[coverage = "off"]
-//~^ ERROR `#[coverage]` must be applied to coverable code
-//~| ERROR malformed `coverage` attribute input
+//~^ ERROR expected `coverage(off)` or `coverage(on)`
+//~| ERROR attribute should be applied to a function definition or closure
 struct MyStruct;
 
-#[coverage = "off"] //~ ERROR malformed `coverage` attribute input
+#[coverage = "off"]
+//~^ ERROR expected `coverage(off)` or `coverage(on)`
+//~| ERROR attribute should be applied to a function definition or closure
 impl MyStruct {
     #[coverage = "off"]
-    //~^ ERROR `#[coverage]` must be applied to coverable code
-    //~| ERROR malformed `coverage` attribute input
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
     const X: u32 = 7;
 }
 
-#[coverage = "off"] //~ ERROR malformed `coverage` attribute input
+#[coverage = "off"]
+//~^ ERROR expected `coverage(off)` or `coverage(on)`
+//~| ERROR attribute should be applied to a function definition or closure
 trait MyTrait {
     #[coverage = "off"]
-    //~^ ERROR `#[coverage]` must be applied to coverable code
-    //~| ERROR malformed `coverage` attribute input
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
     const X: u32;
 
     #[coverage = "off"]
-    //~^ ERROR `#[coverage]` must be applied to coverable code
-    //~| ERROR malformed `coverage` attribute input
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
     type T;
 }
 
-#[coverage = "off"] //~ ERROR malformed `coverage` attribute input
+#[coverage = "off"]
+//~^ ERROR expected `coverage(off)` or `coverage(on)`
+//~| ERROR attribute should be applied to a function definition or closure
 impl MyTrait for MyStruct {
     #[coverage = "off"]
-    //~^ ERROR `#[coverage]` must be applied to coverable code
-    //~| ERROR malformed `coverage` attribute input
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
     const X: u32 = 8;
 
     #[coverage = "off"]
-    //~^ ERROR `#[coverage]` must be applied to coverable code
-    //~| ERROR malformed `coverage` attribute input
+    //~^ ERROR expected `coverage(off)` or `coverage(on)`
+    //~| ERROR attribute should be applied to a function definition or closure
     type T = ();
 }
 
 #[coverage = "off"]
 //~^ ERROR expected `coverage(off)` or `coverage(on)`
-//~| ERROR malformed `coverage` attribute input
 fn main() {}