diff --git a/crates/swc_ecma_minifier/tests/fixture/issues/8643/output.js b/crates/swc_ecma_minifier/tests/fixture/issues/8643/output.js
index 77bd2e581726..2383456174bf 100644
--- a/crates/swc_ecma_minifier/tests/fixture/issues/8643/output.js
+++ b/crates/swc_ecma_minifier/tests/fixture/issues/8643/output.js
@@ -8,6 +8,12 @@ const Cache = {
     get: function(key) {
         if (!1 !== this.enabled) // console.log( 'THREE.Cache', 'Checking key:', key );
         return this.files[key];
+    },
+    remove: function(key) {
+        delete this.files[key];
+    },
+    clear: function() {
+        this.files = {};
     }
 };
 class Loader {
diff --git a/crates/swc_ecma_minifier/tests/fixture/issues/9148/output.js b/crates/swc_ecma_minifier/tests/fixture/issues/9148/output.js
new file mode 100644
index 000000000000..9c6db76fcaaa
--- /dev/null
+++ b/crates/swc_ecma_minifier/tests/fixture/issues/9148/output.js
@@ -0,0 +1,14 @@
+export default (function() {
+    const obj = {
+        clear: function() {
+            console.log('clear');
+        },
+        start: function() {
+            const _this = this;
+            setTimeout(function() {
+                _this.clear();
+            });
+        }
+    };
+    return ()=>obj.start();
+})();
diff --git a/crates/swc_ecma_minifier/tests/terser/compress/hoist_props/contains_this_1/output.js b/crates/swc_ecma_minifier/tests/terser/compress/hoist_props/contains_this_1/output.js
index 76f60763a8db..ca168451f516 100644
--- a/crates/swc_ecma_minifier/tests/terser/compress/hoist_props/contains_this_1/output.js
+++ b/crates/swc_ecma_minifier/tests/terser/compress/hoist_props/contains_this_1/output.js
@@ -1 +1,7 @@
-console.log(1, 1);
+var o = {
+    u: function() {
+        return this === this;
+    },
+    p: 1
+};
+console.log(o.p, o.p);