Open en.wikipedia.org. Verify the main page renders: it has the Wikipedia logo (link to /wiki/Main_Page), a 'Search Wikipedia' input, and at least 5 'In the news' / 'On this day' / 'Did you know' sidebar links. Then use the search input: type 'Behavior-driven development' and submit. Verify the resulting article page shows an h1 'Behavior-driven development', a paragraph containing the word 'BDD', and a 'References' section heading further down the page.
