Re-unify the test suite

setupTest.js

@@ -2,12 +2,24 @@ import '@testing-library/jest-dom';
 import { vi } from 'vitest';
 import { setupIntersectionMocking } from 'react-intersection-observer/test-utils';
 import i18next from 'i18next';
+import createFetchMock from 'vitest-fetch-mock';
 import en from './src/locales/en/translation.json';
 
 // vitest doesn't set a default
 window.origin = 'http://localhost';
 
 vi.setConfig({ testTimeout: 10_000 });
+const fetchMocker = createFetchMock(vi);
+
+// changes default behavior of fetchMock to use the real 'fetch' implementation and not mock responses
+beforeEach((context) => {
+  if (context.task.file.name.includes('/integration')) {
+    fetchMocker.disableMocks();
+  } else {
+    // sets globalThis.fetch and globalThis.fetchMock to our mocked version
+    fetchMocker.enableMocks();
+  }
+});
 
 /** */
 class Path2D {

vitest.config.ts

@@ -32,4 +32,14 @@ export default defineConfig({
       '@tests': fileURLToPath(new URL('./__tests__', import.meta.url)),
     },
   },
+  test: {
+    environment: 'happy-dom',
+    exclude: ['node_modules'],
+    fileParallelism: false,
+    globals: true,
+    include: ['**/*.test.js', '**/*.test.jsx'],
+    maxConcurrency: 1,
+    name: 'unit',
+    setupFiles: ['./setupTest.js'],
+  },
 });