1 files changed, 11 insertions, 1 deletions
diff --git a/src/tools/clippy/tests/ui/comparison_to_empty.rs b/src/tools/clippy/tests/ui/comparison_to_empty.rs
index b3489714380..21e65184d50 100644
--- a/src/tools/clippy/tests/ui/comparison_to_empty.rs
+++ b/src/tools/clippy/tests/ui/comparison_to_empty.rs
@@ -1,7 +1,8 @@
 //@run-rustfix
 
 #![warn(clippy::comparison_to_empty)]
-#![allow(clippy::useless_vec)]
+#![allow(clippy::borrow_deref_ref, clippy::needless_if, clippy::useless_vec)]
+#![feature(let_chains)]
 
 fn main() {
     // Disallow comparisons to empty
@@ -12,6 +13,11 @@ fn main() {
     let v = vec![0];
     let _ = v == [];
     let _ = v != [];
+    if let [] = &*v {}
+    let s = [0].as_slice();
+    if let [] = s {}
+    if let [] = &*s {}
+    if let [] = &*s && s == [] {}
 
     // Allow comparisons to non-empty
     let s = String::new();
@@ -21,4 +27,8 @@ fn main() {
     let v = vec![0];
     let _ = v == [0];
     let _ = v != [0];
+    if let [0] = &*v {}
+    let s = [0].as_slice();
+    if let [0] = s {}
+    if let [0] = &*s && s == [0] {}
 }