test(create-next-app): increase coverage (#17507)
test(create-next-app): increase coverage (#17507)

Added a test case to make sure that creating a new project within the current directory works as expected.
flybayer/next.js,JeromeFitz/next.js,flybayer/next.js,zeit/next.js,flybayer/next.js,zeit/next.js,flybayer/next.js,azukaru/next.js,azukaru/next.js,JeromeFitz/next.js,zeit/next.js,azukaru/next.js,JeromeFitz/next.js,azukaru/next.js,JeromeFitz/next.js