feat: migrate paginator to jest

core/paginator/.gitignore

@@ -3,6 +3,6 @@ node_modules
 build
 package-lock.json
 docs/
-.coverage
+coverage/
 __pycache__
 .DS_Store

core/paginator/jest.config.js

@@ -0,0 +1,21 @@
+// Copyright 2026 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+module.exports = {
+  testMatch: ['<rootDir>/test/**/*.ts'],
+  transform: {
+    '^.+\\.tsx?$': ['ts-jest', {tsconfig: 'tsconfig.json'}],
+  },
+  clearMocks: true,
+};

core/paginator/package.json

@@ -10,7 +10,7 @@
     "url": "https://github.com/googleapis/google-cloud-node.git"
   },
   "scripts": {
-    "test": "c8 mocha build/test",
+    "test": "jest --coverage",
     "compile": "tsc -p .",
     "fix": "gts fix",
     "lint": "gts check",
@@ -31,21 +31,19 @@
   "license": "Apache-2.0",
   "devDependencies": {
     "@types/extend": "^3.0.4",
-    "@types/mocha": "^10.0.10",
+    "@types/jest": "^30.0.0",
     "@types/node": "^22.13.8",
-    "@types/proxyquire": "^1.3.31",
-    "@types/sinon": "^17.0.4",
-    "c8": "^10.1.3",
-    "codecov": "^3.8.3",
+    "@types/uuid": "^10.0.0",
     "gts": "^6.0.2",
+    "jest": "^30.4.2",
     "jsdoc": "^4.0.4",
     "jsdoc-fresh": "^6.0.0",
     "jsdoc-region-tag": "^5.0.0",
-    "mocha": "^11.1.0",
+    "linkinator": "^6.1.2",
     "path-to-regexp": "^8.2.0",
-    "proxyquire": "^2.1.3",
-    "sinon": "^19.0.2",
-    "typescript": "^5.8.2"
+    "ts-jest": "^29.4.10",
+    "typescript": "^5.8.2",
+    "uuid": "^11.1.0"
   },
   "dependencies": {
     "extend": "^3.0.2"