test: mock fetch

jest.config.js

@@ -2,6 +2,7 @@
 module.exports = {
   preset: 'ts-jest',
   silent: true,
+  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
   testPathIgnorePatterns: ['/node_modules/', '/dist/', '/esm/', '/example/'],
   transform: {
     '^.+\\.(ts|tsx)$': 'ts-jest',

jest.setup.js

@@ -0,0 +1,3 @@
+const fetchMock = require('jest-fetch-mock');
+
+fetchMock.enableMocks();

package.json

@@ -183,6 +183,7 @@
     "husky": "8.0.2",
     "is-ci": "3.0.1",
     "jest": "29.3.1",
+    "jest-fetch-mock": "^3.0.3",
     "prettier": "2.8.0",
     "release-it": "15.5.0",
     "rimraf": "3.0.2",

yarn.lock

@@ -1232,6 +1232,7 @@ __metadata:
     husky: 8.0.2
     is-ci: 3.0.1
     jest: 29.3.1
+    jest-fetch-mock: ^3.0.3
     prettier: 2.8.0
     release-it: 15.5.0
     rimraf: 3.0.2
@@ -3264,6 +3265,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"cross-fetch@npm:^3.0.4":
+  version: 3.1.8
+  resolution: "cross-fetch@npm:3.1.8"
+  dependencies:
+    node-fetch: ^2.6.12
+  checksum: 78f993fa099eaaa041122ab037fe9503ecbbcb9daef234d1d2e0b9230a983f64d645d088c464e21a247b825a08dc444a6e7064adfa93536d3a9454b4745b3632
+  languageName: node
+  linkType: hard
+
 "cross-fetch@npm:^3.1.5":
   version: 3.1.5
   resolution: "cross-fetch@npm:3.1.5"
@@ -5866,6 +5876,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"jest-fetch-mock@npm:^3.0.3":
+  version: 3.0.3
+  resolution: "jest-fetch-mock@npm:3.0.3"
+  dependencies:
+    cross-fetch: ^3.0.4
+    promise-polyfill: ^8.1.3
+  checksum: fb052f7e0ef1c8192a9c15efdd1b18d281ab68fc6b1648b30bff8880fe24418bdf12190ea79b1996932dc15417c3c01f5b2d77ef7104a7e7943e7cbe8d61071d
+  languageName: node
+  linkType: hard
+
 "jest-get-type@npm:^29.4.3":
   version: 29.4.3
   resolution: "jest-get-type@npm:29.4.3"
@@ -6998,6 +7018,20 @@ __metadata:
   languageName: node
   linkType: hard
 
+"node-fetch@npm:^2.6.12":
+  version: 2.7.0
+  resolution: "node-fetch@npm:2.7.0"
+  dependencies:
+    whatwg-url: ^5.0.0
+  peerDependencies:
+    encoding: ^0.1.0
+  peerDependenciesMeta:
+    encoding:
+      optional: true
+  checksum: d76d2f5edb451a3f05b15115ec89fc6be39de37c6089f1b6368df03b91e1633fd379a7e01b7ab05089a25034b2023d959b47e59759cb38d88341b2459e89d6e5
+  languageName: node
+  linkType: hard
+
 "node-gyp@npm:latest":
   version: 9.3.1
   resolution: "node-gyp@npm:9.3.1"
@@ -7611,6 +7645,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"promise-polyfill@npm:^8.1.3":
+  version: 8.3.0
+  resolution: "promise-polyfill@npm:8.3.0"
+  checksum: 206373802076c77def0805758d0a8ece64120dfa6603f092404a1004211f8f2f67f33cadbc35953fc2a8ed0b0d38c774e88bdf01e20ce7a920723a60df84b7a5
+  languageName: node
+  linkType: hard
+
 "promise-retry@npm:^2.0.1":
   version: 2.0.1
   resolution: "promise-retry@npm:2.0.1"