https://invisible-island.net/vttest/
vttest - test VT100-type terminal
vttest [options] [24x80.132]
Vttest is a program designed to test the functionality of a VT100
terminal (or emulator thereof). It tests both display (escape sequence
handling) and keyboard.
The program is menu-driven and contains full on-line operating
instructions.
o To run a given menu-item, you must enter its number.
o Menu items start at zero; this is the "Exit" item in almost all
cases.
o You can run all menu-items (for a given level) by entering an
asterisk, i.e, "*'.
o You can force a repaint of the menu items by entering "?".
o A few menus can be more than one page. Use "n" and "p" to switch
to the next or previous page.
You can specify the screen geometry in the form [24x80.132], i.e.,
o 24 lines,
o 80 minimum columns, and
o 132 maximum columns.
If your terminal does not switch between 80 and 132 columns you may
specify 24x80.80, for example, to avoid a misleading display.
Other options are:
-V print the program version, and exit.
-f fontfile
specify a file containing a DRCS (soft character definition)
string.
-l log test results to vttest.log.
-p use padding, e.g., for a VT100 connected to a high-speed line.
-q show only the most recent part of a continuous response, e.g.,
any-event mouse tests, to improve readability of the test.
-s add time-delay in selected panning/scrolling options to show
details.
-8 use 8-bit controls (this can be changed with a menu option).
Per Lindberg (mcvax,seismo)!enea!suadb!lindberg sometime 1985.
Modified by Thomas Dickey from June 1996, to support nonstandard screen
geometry, VT220-VT520, ISO color and xterm-specific tests.
2020-09-20 VTTEST(1)