only include productGroups in main context on homepage (#31640)

tests/rendering/homepage.js

@@ -0,0 +1,31 @@
+import { expect, jest } from '@jest/globals'
+
+import { getDOM } from '../helpers/e2etest.js'
+
+describe('rendering the home page(s)', () => {
+  jest.setTimeout(5 * 60 * 1000)
+
+  test('homepage has product links', async () => {
+    const $ = await getDOM('/en')
+    const products = $('[data-testid=product]')
+    expect(products.length).toBe(1)
+  })
+
+  test('homepage in non-default language has product links', async () => {
+    const $ = await getDOM('/ja')
+    const products = $('[data-testid=product]')
+    expect(products.length).toBe(1)
+  })
+
+  test('homepage in non-default product', async () => {
+    const $ = await getDOM('/en/enterprise-cloud@latest')
+    const products = $('[data-testid=product]')
+    expect(products.length).toBe(1)
+  })
+
+  test('homepage in non-default product in non-default language', async () => {
+    const $ = await getDOM('/ja/enterprise-cloud@latest')
+    const products = $('[data-testid=product]')
+    expect(products.length).toBe(1)
+  })
+})