In Node, how do I require files inside eval?

I have two files test.js and x.js, in the same directory:

• test.js:

  console.log(eval( "require('x.js')" ));
  
  

• x.js is empty.

Expected: require returns undefined, so nothing is logged.

Actual: node test.js gives me Error: Cannot find module 'x.js' (stack-trace omitted for brevity).

The situation sounds similar to this other question, with the differences that I've used eval rather than new Function, and require is defined, just working unexpectedly.

---

Why is this?

How do I correctly require a module in eval'd code?