1 files changed, 25 insertions, 0 deletions
diff --git a/test/compress/evaluate.js b/test/compress/evaluate.js
index b5b74ac0..9f97ba99 100644
--- a/test/compress/evaluate.js
+++ b/test/compress/evaluate.js
@@ -2869,3 +2869,28 @@ issue_4035: {
         "true",
     ]
 }
+
+issue_4067: {
+    options = {
+        evaluate: true,
+        reduce_vars: true,
+        unsafe: true,
+    }
+    input: {
+        (function(a) {
+            (function(b) {
+                b[0] += 0;
+                console.log(+a);
+            })(a);
+        })([]);
+    }
+    expect: {
+        (function(a) {
+            (function(b) {
+                b[0] += 0;
+                console.log(+a);
+            })(a);
+        })([]);
+    }
+    expect_stdout: "NaN"
+}