diff --git a/tests/ui/test-attrs/issue-109816.rs b/tests/ui/test-attrs/issue-109816.rs
index c7caae67fefa6..f40f99946da14 100644
--- a/tests/ui/test-attrs/issue-109816.rs
+++ b/tests/ui/test-attrs/issue-109816.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: --test
+//@ reference: attributes.testing.test.allowed-positions
 
 fn align_offset_weird_strides() {
     #[test]
diff --git a/tests/ui/test-attrs/issue-109816.stderr b/tests/ui/test-attrs/issue-109816.stderr
index 270f4e0a66683..118c8d8782905 100644
--- a/tests/ui/test-attrs/issue-109816.stderr
+++ b/tests/ui/test-attrs/issue-109816.stderr
@@ -1,5 +1,5 @@
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/issue-109816.rs:4:5
+  --> $DIR/issue-109816.rs:5:5
    |
 LL |     #[test]
    |     ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
diff --git a/tests/ui/test-attrs/test-attr-non-associated-functions.rs b/tests/ui/test-attrs/test-attr-non-associated-functions.rs
index 4bf337d0f1b3c..9d28f59888a0c 100644
--- a/tests/ui/test-attrs/test-attr-non-associated-functions.rs
+++ b/tests/ui/test-attrs/test-attr-non-associated-functions.rs
@@ -1,4 +1,5 @@
 //@ compile-flags:--test
+//@ reference: attributes.testing.test.allowed-positions
 
 struct A {}
 
diff --git a/tests/ui/test-attrs/test-attr-non-associated-functions.stderr b/tests/ui/test-attrs/test-attr-non-associated-functions.stderr
index 13914971b558a..fda28ee28a07c 100644
--- a/tests/ui/test-attrs/test-attr-non-associated-functions.stderr
+++ b/tests/ui/test-attrs/test-attr-non-associated-functions.stderr
@@ -1,5 +1,5 @@
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-attr-non-associated-functions.rs:6:5
+  --> $DIR/test-attr-non-associated-functions.rs:7:5
    |
 LL |     #[test]
    |     ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -11,7 +11,7 @@ LL +     #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-attr-non-associated-functions.rs:11:5
+  --> $DIR/test-attr-non-associated-functions.rs:12:5
    |
 LL |     #[test]
    |     ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
diff --git a/tests/ui/test-attrs/test-function-signature.rs b/tests/ui/test-attrs/test-function-signature.rs
index 0f43245be6f61..4a6c0e8450ce4 100644
--- a/tests/ui/test-attrs/test-function-signature.rs
+++ b/tests/ui/test-attrs/test-function-signature.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: --test
+//@ reference: attributes.testing.test.allowed-positions
 
 #[test]
 fn foo() -> Result<(), ()> {
diff --git a/tests/ui/test-attrs/test-function-signature.stderr b/tests/ui/test-attrs/test-function-signature.stderr
index 55d09970b3203..7fdaaed1aebc0 100644
--- a/tests/ui/test-attrs/test-function-signature.stderr
+++ b/tests/ui/test-attrs/test-function-signature.stderr
@@ -1,29 +1,29 @@
 error: functions used as tests can not have any arguments
-  --> $DIR/test-function-signature.rs:14:1
+  --> $DIR/test-function-signature.rs:15:1
    |
 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
+  --> $DIR/test-function-signature.rs:23:1
    |
 LL | fn type_generic<T>() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^
 
 error: functions used as tests can not have any non-lifetime generic parameters
-  --> $DIR/test-function-signature.rs:25:1
+  --> $DIR/test-function-signature.rs:26:1
    |
 LL | fn const_generic<const N: usize>() {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: functions used as tests can not have any arguments
-  --> $DIR/test-function-signature.rs:30:5
+  --> $DIR/test-function-signature.rs:31:5
    |
 LL |     fn foo(arg: ()) {}
    |     ^^^^^^^^^^^^^^^^^^
 
 error[E0277]: the trait bound `i32: Termination` is not satisfied
-  --> $DIR/test-function-signature.rs:9:13
+  --> $DIR/test-function-signature.rs:10:13
    |
 LL | #[test]
    | ------- in this attribute macro expansion
diff --git a/tests/ui/test-attrs/test-on-not-fn.rs b/tests/ui/test-attrs/test-on-not-fn.rs
index 16e9cd8d5b8d7..57ae2b19cf5fb 100644
--- a/tests/ui/test-attrs/test-on-not-fn.rs
+++ b/tests/ui/test-attrs/test-on-not-fn.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: --test
+//@ reference: attributes.testing.test.allowed-positions
 
 #[test] //~ ERROR: the `#[test]` attribute may only be used on a free function
 mod test {}
diff --git a/tests/ui/test-attrs/test-on-not-fn.stderr b/tests/ui/test-attrs/test-on-not-fn.stderr
index db8bed100a635..22e4792688563 100644
--- a/tests/ui/test-attrs/test-on-not-fn.stderr
+++ b/tests/ui/test-attrs/test-on-not-fn.stderr
@@ -1,5 +1,5 @@
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:3:1
+  --> $DIR/test-on-not-fn.rs:4:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -13,7 +13,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:6:1
+  --> $DIR/test-on-not-fn.rs:7:1
    |
 LL |   #[test]
    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -33,7 +33,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:20:1
+  --> $DIR/test-on-not-fn.rs:21:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -47,7 +47,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:23:1
+  --> $DIR/test-on-not-fn.rs:24:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -61,7 +61,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:26:1
+  --> $DIR/test-on-not-fn.rs:27:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -75,7 +75,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:29:1
+  --> $DIR/test-on-not-fn.rs:30:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -89,7 +89,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:32:1
+  --> $DIR/test-on-not-fn.rs:33:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -103,7 +103,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:35:1
+  --> $DIR/test-on-not-fn.rs:36:1
    |
 LL |   #[test]
    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -119,7 +119,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:40:1
+  --> $DIR/test-on-not-fn.rs:41:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -133,7 +133,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:43:1
+  --> $DIR/test-on-not-fn.rs:44:1
    |
 LL |   #[test]
    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -150,7 +150,7 @@ LL + #[cfg(test)]
    |
 
 error: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:50:1
+  --> $DIR/test-on-not-fn.rs:51:1
    |
 LL |   #[test]
    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
@@ -168,7 +168,7 @@ LL + #[cfg(test)]
    |
 
 warning: the `#[test]` attribute may only be used on a free function
-  --> $DIR/test-on-not-fn.rs:61:1
+  --> $DIR/test-on-not-fn.rs:62:1
    |
 LL | #[test]
    | ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
diff --git a/tests/ui/test-attrs/test-passed.rs b/tests/ui/test-attrs/test-passed.rs
index 959470adcc422..034051e4eb6d9 100644
--- a/tests/ui/test-attrs/test-passed.rs
+++ b/tests/ui/test-attrs/test-passed.rs
@@ -4,6 +4,7 @@
 //@ run-pass
 //@ check-run-results
 //@ normalize-stdout: "finished in \d+\.\d+s" -> "finished in $$TIME"
+//@ reference: attributes.testing.test.success
 
 // Tests the output of the test harness with only passed tests.
 
diff --git a/tests/ui/test-attrs/test-should-panic-attr.rs b/tests/ui/test-attrs/test-should-panic-attr.rs
index e6de07d009411..b095099daad0f 100644
--- a/tests/ui/test-attrs/test-should-panic-attr.rs
+++ b/tests/ui/test-attrs/test-should-panic-attr.rs
@@ -1,4 +1,5 @@
 //@ compile-flags: --test
+//@ reference: attributes.testing.should_panic.syntax
 
 #[test]
 #[should_panic = "foo"]
diff --git a/tests/ui/test-attrs/test-should-panic-attr.stderr b/tests/ui/test-attrs/test-should-panic-attr.stderr
index 475a55ad0cbc2..48f6b0d37cb10 100644
--- a/tests/ui/test-attrs/test-should-panic-attr.stderr
+++ b/tests/ui/test-attrs/test-should-panic-attr.stderr
@@ -1,5 +1,5 @@
 error[E0539]: malformed `should_panic` attribute input
-  --> $DIR/test-should-panic-attr.rs:10:1
+  --> $DIR/test-should-panic-attr.rs:11:1
    |
 LL | #[should_panic(expected)]
    | ^^^^^^^^^^^^^^^--------^^
@@ -19,7 +19,7 @@ LL + #[should_panic]
    |
 
 error[E0539]: malformed `should_panic` attribute input
-  --> $DIR/test-should-panic-attr.rs:19:1
+  --> $DIR/test-should-panic-attr.rs:20:1
    |
 LL | #[should_panic(expect)]
    | ^^^^^^^^^^^^^^--------^
@@ -39,7 +39,7 @@ LL + #[should_panic]
    |
 
 error[E0539]: malformed `should_panic` attribute input
-  --> $DIR/test-should-panic-attr.rs:28:1
+  --> $DIR/test-should-panic-attr.rs:29:1
    |
 LL | #[should_panic(expected(foo, bar))]
    | ^^^^^^^^^^^^^^^------------------^^
@@ -60,7 +60,7 @@ LL + #[should_panic]
    |
 
 error[E0805]: malformed `should_panic` attribute input
-  --> $DIR/test-should-panic-attr.rs:37:1
+  --> $DIR/test-should-panic-attr.rs:38:1
    |
 LL | #[should_panic(expected = "foo", bar)]
    | ^^^^^^^^^^^^^^-----------------------^
diff --git a/tests/ui/test-attrs/test-should-panic-failed-show-span.rs b/tests/ui/test-attrs/test-should-panic-failed-show-span.rs
index 22a6f4a835e23..f8c1840ab79f1 100644
--- a/tests/ui/test-attrs/test-should-panic-failed-show-span.rs
+++ b/tests/ui/test-attrs/test-should-panic-failed-show-span.rs
@@ -8,6 +8,7 @@
 //@ normalize-stdout: "TypeId\(0x[0-9a-f]+\)" -> "TypeId($$HEX)"
 //@ needs-threads
 //@ needs-unwind (panic)
+//@ reference: attributes.testing.should_panic.expected
 
 #[test]
 #[should_panic]
diff --git a/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stderr b/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stderr
index ab36bc2beb9e6..398479f15fa23 100644
--- a/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stderr
+++ b/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stderr
@@ -1,13 +1,13 @@
 
-thread 'should_panic_with_any_message' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:15:5:
+thread 'should_panic_with_any_message' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:16:5:
 Panic!
 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
-thread 'should_panic_with_message' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:21:5:
+thread 'should_panic_with_message' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:22:5:
 message
 
-thread 'should_panic_with_substring_panics_with_incorrect_string' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:39:5:
+thread 'should_panic_with_substring_panics_with_incorrect_string' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:40:5:
 ZOMGWTFBBQ
 
-thread 'should_panic_with_substring_panics_with_non_string_value' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:46:5:
+thread 'should_panic_with_substring_panics_with_non_string_value' ($TID) panicked at $DIR/test-should-panic-failed-show-span.rs:47:5:
 Box<dyn Any>
diff --git a/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stdout b/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stdout
index 492f54debc829..c28403a11e8ec 100644
--- a/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stdout
+++ b/tests/ui/test-attrs/test-should-panic-failed-show-span.run.stdout
@@ -10,9 +10,9 @@ test should_panic_with_substring_panics_with_non_string_value - should panic ...
 failures:
 
 ---- should_panic_with_any_message_does_not_panic stdout ----
-note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:26:4
+note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:27:4
 ---- should_panic_with_message_does_not_panic stdout ----
-note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:32:4
+note: test did not panic as expected at $DIR/test-should-panic-failed-show-span.rs:33:4
 ---- should_panic_with_substring_panics_with_incorrect_string stdout ----
 note: panic did not contain expected string
       panic message: "ZOMGWTFBBQ"
diff --git a/tests/ui/test-attrs/test-vs-cfg-test.rs b/tests/ui/test-attrs/test-vs-cfg-test.rs
index d7d9e61103c9a..634511fdff392 100644
--- a/tests/ui/test-attrs/test-vs-cfg-test.rs
+++ b/tests/ui/test-attrs/test-vs-cfg-test.rs
@@ -1,5 +1,6 @@
 //@ run-pass
 //@ compile-flags: --cfg test
+//@ reference: cfg.test
 
 // Make sure `--cfg test` does not inject test harness