From 07b7a29f514e691dbf4fac807406c55a68c9d4df Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Thu, 20 Aug 2026 18:54:58 +0800
Subject: [PATCH] Add test for comments in parameter/argument list (#19898)

---
 tests/format/js/comments/in-list/14723.js     | 10 +++
 tests/format/js/comments/in-list/9678.js      | 16 +++++
 .../in-list/__snapshots__/format.test.js.snap | 72 +++++++++++++++++++
 3 files changed, 98 insertions(+)
 create mode 100644 tests/format/js/comments/in-list/14723.js
 create mode 100644 tests/format/js/comments/in-list/9678.js

diff --git a/tests/format/js/comments/in-list/14723.js b/tests/format/js/comments/in-list/14723.js
new file mode 100644
index 000000000..9c4dbea68
--- /dev/null
+++ b/tests/format/js/comments/in-list/14723.js
@@ -0,0 +1,10 @@
+function doSomething(first, second) {
+  	combineLatest([
+            first.watchIt().pipe(
+                  // tap(x => console.log(x))
+                ),
+            second.watchIt().pipe(
+              tap((x) => console.log(x))
+            ),
+        ])
+}
diff --git a/tests/format/js/comments/in-list/9678.js b/tests/format/js/comments/in-list/9678.js
new file mode 100644
index 000000000..6a65f3ed8
--- /dev/null
+++ b/tests/format/js/comments/in-list/9678.js
@@ -0,0 +1,16 @@
+class C11 {
+    constructor(
+        //a
+        //b
+    ){}
+
+    method(
+        //a
+        //b
+    ){}
+
+    get getter(
+        //a
+        //b
+    ){}
+}
diff --git a/tests/format/js/comments/in-list/__snapshots__/format.test.js.snap b/tests/format/js/comments/in-list/__snapshots__/format.test.js.snap
index ddad5515d..4d231f67c 100644
--- a/tests/format/js/comments/in-list/__snapshots__/format.test.js.snap
+++ b/tests/format/js/comments/in-list/__snapshots__/format.test.js.snap
@@ -1,5 +1,77 @@
 // Jest Snapshot v1, https://jestjs.io/docs/snapshot-testing
 
+exports[`9678.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "flow", "typescript"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+class C11 {
+    constructor(
+        //a
+        //b
+    ){}
+
+    method(
+        //a
+        //b
+    ){}
+
+    get getter(
+        //a
+        //b
+    ){}
+}
+
+=====================================output=====================================
+class C11 {
+  constructor(
+    //a
+    //b
+  ) {}
+
+  method(
+    //a
+    //b
+  ) {}
+
+  get getter(
+    //a
+    //b
+  ) {}
+}
+
+================================================================================
+`;
+
+exports[`14723.js format 1`] = `
+====================================options=====================================
+parsers: ["babel", "flow", "typescript"]
+                                                      printWidth: 80 (default) |
+=====================================input======================================
+function doSomething(first, second) {
+  	combineLatest([
+            first.watchIt().pipe(
+                  // tap(x => console.log(x))
+                ),
+            second.watchIt().pipe(
+              tap((x) => console.log(x))
+            ),
+        ])
+}
+
+=====================================output=====================================
+function doSomething(first, second) {
+  combineLatest([
+    first.watchIt().pipe(
+      // tap(x => console.log(x))
+    ),
+    second.watchIt().pipe(tap((x) => console.log(x))),
+  ]);
+}
+
+================================================================================
+`;
+
 exports[`dangling-comment-in-list.js format 1`] = `
 ====================================options=====================================
 parsers: ["babel", "flow", "typescript"]