Note: test doesn't fail on master. I cannot reproduce the glitches with
-u NONE, probably it requires interfering events. But add some coverage
for these checks at least.
Problem: Relative cursor position is not calculated correctly.
Solution: Always set topline, also when window is one line only.
(Robert Webb) Add more info to getwininfo() for testing.
8fcb60f961
Why?
- Because we can.
- Because the TUI is just another GUI™
- Because it looks kinda nice, and provides useful context like 1 out of 100
times
Complies with "don't pay for what you don't use".
Some crashes for resizing were unfolded, add tests for those.
Problem: Incorrect adjusting the popup menu for the preview window.
Solution: Compute position and height properl. (Ronan Pigott) Also show at
least ten items. (closesvim/vim#3414)
