Adding TEST_HOST logic

Author: Ian Walter

.github/workflows/ci.yml

@@ -9,8 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     container:
       image: node:13.6
+      options: --network-alias testHost
     env:
       SELENIUM_HUB_HOST: hub
+      TEST_HOST: testHost
     services:
       hub:
         image: selenium/hub:3.141.59-gold

tests.js

@@ -15,6 +15,10 @@ test('test server', async ({ browser, expect }) => {
       </html>
     `
   })
-  await browser.url(server.url)
+  const url = new URL(server.url)
+  if (process.env.TEST_HOST) {
+    url.host = process.env.TEST_HOST
+  }
+  await browser.url(url.href)
   expect(await browser.getTitle()).toBe('Hello World!')
 })