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#!/usr/bin/env lua
local VISUALDELAY = os.getenv("VISUALDELAY")
local visual = VISUALDELAY or false
local visual_delay = VISUALDELAY and (tonumber(VISUALDELAY)) or 0.1
local signal = require("posix.signal")
local unistd = require("posix.unistd")
local time = require("posix.time")
local curses = require("posix.curses")
local rote = require("rote")
local rt = rote.RoteTerm(24, 80)
os.execute("make coverage")
os.execute("rm -f *.gcda */*.gcda")
os.execute("rm -f coverage.info test.htoprc")
os.execute("rm -rf lcov")
rt:forkPty("HTOPRC=./test.htoprc ./htop")
local stdscr, term_win
-- Curses initalization needed even when not in visual mode
-- because luaposix only initializes KEY_* constants after initscr().
stdscr = curses.initscr()
if visual then
curses.echo(false)
curses.start_color()
curses.raw(true)
curses.halfdelay(1)
stdscr:keypad(true)
term_win = curses.newwin(24, 80, 0, 0)
local function makePair(foreground, background)
return background * 8 + 7 - foreground
end
-- initialize the color pairs the way rt:draw() expects it
for foreground = 0, 7 do
for background = 0, 7 do
if foreground ~= 7 or background ~= 0 then
local pair = makePair(foreground, background)
curses.init_pair(pair, foreground, background)
end
end
end
else
curses.endwin()
end
local function delay(t)
time.nanosleep({ tv_sec = math.floor(t), tv_nsec = (t - math.floor(t)) * 1000000000 })
end
local function show(key)
rt:update()
if visual then
rt:draw(term_win, 0, 0)
if key then
term_win:mvaddstr(0, 0, tostring(key))
end
term_win:refresh()
delay(visual_delay)
end
end
local function send(key, times)
for i = 1, times or 1 do
delay(0.003) -- 30ms delay to avoid clobbering Esc sequences
if type(key) == "string" then
for c in key:gmatch('.') do
rt:keyPress(string.byte(c))
end
else
rt:keyPress(key)
end
show(key)
end
end
local function string_at(x, y, len)
rt:update()
local out = {}
for i = 1, len do
out[#out+1] = rt:cellChar(y-1, x+i-2)
end
return table.concat(out)
end
local function is_string_at(x, y, str)
return string_at(x, y, #str) == str
end
local function check_string_at(x, y, str)
return { str, string_at(x, y, #str) }
end
local ESC = 27
time.nanosleep({ tv_sec = 0, tv_nsec = 150000000 }) -- give some time for htop to initialize.
local pos_panelhdr = (function()
for i = 1, 24 do
if is_string_at(3, i, "PID") then
return i
end
end
end)() or 1
show()
local terminated = false
signal.signal(signal.SIGCHLD, function(_)
terminated = true
end)
local function running_it(desc, fn)
it(desc, function()
assert(not terminated)
show()
fn()
assert(not terminated)
end)
end
local function check(t)
return t[1], t[2]
end
describe("htop test suite", function()
running_it("visits each setup screen", function()
send("S")
send(curses.KEY_DOWN, 3)
send(curses.KEY_F10)
end)
running_it("adds and removes PPID column", function()
send("S")
send(curses.KEY_DOWN, 3)
send(curses.KEY_RIGHT, 2)
send(curses.KEY_DOWN, 2)
send("\n")
send(curses.KEY_F10)
delay(0.2)
local ppid = check_string_at(2, pos_panelhdr, "PPID")
send("S")
send(curses.KEY_DOWN, 3)
send(curses.KEY_RIGHT, 1)
send(curses.KEY_DC)
send(curses.KEY_F10)
delay(0.2)
local not_ppid = check_string_at(2, pos_panelhdr, "PPID")
assert.equal(check(ppid))
assert.not_equal(check(not_ppid))
end)
running_it("changes CPU affinity for a process", function()
send("a")
send(" \n")
send(ESC)
end)
running_it("adds and removes a clock widget", function()
send("S")
send(curses.KEY_RIGHT, 3)
send("\n")
send(curses.KEY_UP, 4)
send("\n")
local time = check_string_at(41, 2, "Time")
send(curses.KEY_DC)
delay(0.3)
local not_time = check_string_at(41, 2, "Time")
send(ESC)
assert.equal(check(time))
assert.not_equal(check(not_time))
end)
running_it("adds a hostname widget", function()
send("S")
send(curses.KEY_RIGHT, 3)
send(curses.KEY_DOWN, 8)
send("\n")
send("\n")
send(ESC)
end)
it("finally quits", function()
assert(not terminated)
send("q")
while not terminated do
unistd.sleep(1)
end
assert(terminated)
if visual then
curses.endwin()
end
os.execute("make lcov && xdg-open lcov/index.html")
end)
end)
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