Backported /tests from macros-2.0. (#4842)

* Backported `/tests` from `macros-2.0`.

* Added `eslint-plugin-playwright`

* Improve formatting

---------

Co-authored-by: user <user@exmaple.com>
Co-authored-by: Cohee <18619528+Cohee1207@users.noreply.github.com>

package-lock.json

@@ -134,7 +134,8 @@
                 "@types/yauzl": "^2.10.3",
                 "eslint": "^8.57.1",
                 "eslint-plugin-jest": "^27.9.0",
-                "eslint-plugin-jsdoc": "^48.10.0"
+                "eslint-plugin-jsdoc": "^48.10.0",
+                "eslint-plugin-playwright": "^2.3.0"
             },
             "engines": {
                 "node": ">= 18"
@@ -4559,6 +4560,35 @@
             "dev": true,
             "license": "MIT"
         },
+        "node_modules/eslint-plugin-playwright": {
+            "version": "2.3.0",
+            "resolved": "https://registry.npmjs.org/eslint-plugin-playwright/-/eslint-plugin-playwright-2.3.0.tgz",
+            "integrity": "sha512-7UeUuIb5SZrNkrUGb2F+iwHM97kn33/huajcVtAaQFCSMUYGNFvjzRPil5C0OIppslPfuOV68M/zsisXx+/ZvQ==",
+            "dev": true,
+            "license": "MIT",
+            "dependencies": {
+                "globals": "^16.4.0"
+            },
+            "engines": {
+                "node": ">=16.9.0"
+            },
+            "peerDependencies": {
+                "eslint": ">=8.40.0"
+            }
+        },
+        "node_modules/eslint-plugin-playwright/node_modules/globals": {
+            "version": "16.5.0",
+            "resolved": "https://registry.npmjs.org/globals/-/globals-16.5.0.tgz",
+            "integrity": "sha512-c/c15i26VrJ4IRt5Z89DnIzCGDn9EcebibhAOjw5ibqEHsE1wLUgkPn9RDmNcUKyU87GeaL633nyJ+pplFR2ZQ==",
+            "dev": true,
+            "license": "MIT",
+            "engines": {
+                "node": ">=18"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/sindresorhus"
+            }
+        },
         "node_modules/eslint-scope": {
             "version": "7.2.2",
             "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-7.2.2.tgz",