From 4cd939ad08ddc019610e0e750d751f38dc195a54 Mon Sep 17 00:00:00 2001
From: Young-Flash <871946895@qq.com>
Date: Wed, 20 Dec 2023 19:44:57 +0800
Subject: [PATCH] chore: add test case for nested use tree

---
 .../src/handlers/remove_unused_imports.rs     | 79 ++++++++++++++++++-
 1 file changed, 76 insertions(+), 3 deletions(-)

diff --git a/crates/ide-assists/src/handlers/remove_unused_imports.rs b/crates/ide-assists/src/handlers/remove_unused_imports.rs
index ee44064e7c5..482c36d502e 100644
--- a/crates/ide-assists/src/handlers/remove_unused_imports.rs
+++ b/crates/ide-assists/src/handlers/remove_unused_imports.rs
@@ -423,7 +423,7 @@ fn w() {
 struct X();
 struct Y();
 mod z {
-    use super::{X};
+    use super::X;
 
     fn w() {
         let x = X();
@@ -495,7 +495,7 @@ fn f() {
 mod y {
     struct Y();
     mod z {
-        use crate::{X};
+        use crate::X;
         fn f() {
             let x = X();
         }
@@ -526,7 +526,7 @@ fn f() {
 mod y {
     struct Y();
     mod z {
-        use crate::{y::Y};
+        use crate::y::Y;
         fn f() {
             let y = Y();
         }
@@ -536,6 +536,79 @@ fn f() {
         );
     }
 
+    #[test]
+    fn remove_unused_auto_remove_brace_nested() {
+        check_assist(
+            remove_unused_imports,
+            r#"
+mod a {
+    pub struct A();
+}
+mod b {
+    struct F();
+    mod c {
+        $0use {{super::{{
+            {d::{{{{{{{S, U}}}}}}}},
+            {{{{e::{H, L, {{{R}}}}}}}},
+            F, super::a::A
+        }}}};$0
+        fn f() {
+            let f = F();
+            let l = L();
+            let a = A();
+            let s = S();
+            let h = H();
+        }
+    }
+
+    mod d {
+        pub struct S();
+        pub struct U();
+    }
+
+    mod e {
+        pub struct H();
+        pub struct L();
+        pub struct R();
+    }
+}
+"#,
+            r#"
+mod a {
+    pub struct A();
+}
+mod b {
+    struct F();
+    mod c {
+        use super::{
+            d::S,
+            e::{H, L},
+            F, super::a::A
+        };
+        fn f() {
+            let f = F();
+            let l = L();
+            let a = A();
+            let s = S();
+            let h = H();
+        }
+    }
+
+    mod d {
+        pub struct S();
+        pub struct U();
+    }
+
+    mod e {
+        pub struct H();
+        pub struct L();
+        pub struct R();
+    }
+}
+"#,
+        );
+    }
+
     #[test]
     fn remove_nested_all_unused() {
         check_assist(