Add Node.js CI to check this adapter supports newer Node.js

.github/workflows/ci.yml

@@ -0,0 +1,21 @@
+name: CI
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # fetch was added in Node.js 17.5
+        node-version: ['18.x', '20.x']
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: npm
+      - run: npm ci
+      - run: npm test

README.md

@@ -49,4 +49,4 @@ axios.request({
 
 # Note
 
-- Since, this adapter relies on fetch API so it won't work in Node environment
+- Node 17.5 or later is required to use this adapter in Node environment.

index.test.js

@@ -0,0 +1,22 @@
+import {expect, test, describe, beforeEach, afterEach} from 'vitest'
+import axios from "axios";
+import fetchAdapter from "./index";
+import {getLocal} from "mockttp";
+
+describe('fetchAdapter', () => {
+    const mockServer = getLocal();
+
+    beforeEach(() => mockServer.start(18080));
+    afterEach(() => mockServer.stop());
+
+    test('basic', async () => {
+        const axiosInstance = axios.create({
+            baseURL: 'http://localhost:18080',
+            timeout: 1000,
+            adapter: fetchAdapter,
+        });
+        await mockServer.forGet("/hello").thenReply(200, "A mocked response");
+        const response = await axiosInstance.get("/hello");
+        expect(response.data).to.equal("A mocked response");
+    });
+});