Modern Vim

Tip 9

Jumping to an Alternate File

When you’re test-driving code, it’s helpful to be able to quickly switch between the implementation file and its corresponding unit test. Imagine a sheet of card that has the implementation code printed on one side, and the unit test printed on the other side. Switching between the model and its unit test would be as simple as turning over the card. Your text editor should make it as easy as that to switch between related files. That’s where the Projectionist plugin comes to the rescue, with its :A (for alternate) command.

Preparation

This tip builds upon the material in the previous tip. If you haven’t already done so, I recommend that you go back and read that tip before this one. You’ll also find instructions ...