1 files changed, 24 insertions, 12 deletions
diff --git a/tests/ui/lint/dead-code/unused-adt-impl-pub-trait-with-assoc-const.rs b/tests/ui/lint/dead-code/unused-adt-impl-pub-trait-with-assoc-const.rs
index bf2fc243e81..658cc3d6c61 100644
--- a/tests/ui/lint/dead-code/unused-adt-impl-pub-trait-with-assoc-const.rs
+++ b/tests/ui/lint/dead-code/unused-adt-impl-pub-trait-with-assoc-const.rs
@@ -1,8 +1,9 @@
 #![deny(dead_code)]
 
 struct T1; //~ ERROR struct `T1` is never constructed
-pub struct T2(i32); //~ ERROR struct `T2` is never constructed
-struct T3;
+struct T2; //~ ERROR struct `T2` is never constructed
+pub struct T3(i32); //~ ERROR struct `T3` is never constructed
+pub struct T4(i32); //~ ERROR field `0` is never read
 
 trait Trait1 { //~ ERROR trait `Trait1` is never used
     const UNUSED: i32;
@@ -11,13 +12,13 @@ trait Trait1 { //~ ERROR trait `Trait1` is never used
 }
 
 pub trait Trait2 {
-    const USED: i32;
-    fn used(&self) {}
+    const MAY_USED: i32;
+    fn may_used(&self) {}
 }
 
 pub trait Trait3 {
-    const USED: i32;
-    fn construct_self() -> Self;
+    const MAY_USED: i32;
+    fn may_used() -> Self;
 }
 
 impl Trait1 for T1 {
@@ -30,23 +31,34 @@ impl Trait1 for T1 {
 impl Trait1 for T2 {
     const UNUSED: i32 = 0;
     fn construct_self() -> Self {
-        T2(0)
+        Self
     }
 }
 
 impl Trait2 for T1 {
-    const USED: i32 = 0;
+    const MAY_USED: i32 = 0;
 }
 
 impl Trait2 for T2 {
-    const USED: i32 = 0;
+    const MAY_USED: i32 = 0;
 }
 
-impl Trait3 for T3 {
-    const USED: i32 = 0;
-    fn construct_self() -> Self {
+impl Trait2 for T3 {
+    const MAY_USED: i32 = 0;
+}
+
+impl Trait3 for T2 {
+    const MAY_USED: i32 = 0;
+    fn may_used() -> Self {
         Self
     }
 }
 
+impl Trait3 for T4 {
+    const MAY_USED: i32 = 0;
+    fn may_used() -> Self {
+        T4(0)
+    }
+}
+
 fn main() {}