liberty/tools/wdye/test.lua
Přemysl Eric Janouch e40d56152d
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Add an Expect-like tool
This is to provide an Expect utility with a minimal dependency tree
for C-based projects.  It also addresses some Tcl Expect design issues,
as perceived by me.
2025-01-06 08:30:14 +01:00

25 lines
922 B
Lua

for k, v in pairs(wdye) do _G[k] = v end
-- The terminal echoes back, we don't want to read the same stuff twice.
local cat = spawn {"sh", "-c", "cat > /dev/null", environ={TERM="xterm"}}
assert(cat, "failed to spawn process")
assert(cat.term.key_left, "bad terminfo")
cat:send("Hello\r")
local m = expect(cat:exact {"Hello\r", function (p) return p[0] end})
assert(m == "Hello\r", "exact match failed, or value expansion mismatch")
local t = table.pack(expect(timeout {.5, 42}))
assert(#t == 1 and t[1] == 42, "timeout match failed, or value mismatch")
cat:send("abc123\r")
expect(cat:regex {"A(.*)3", nocase=true, function (p)
assert(p[0] == "abc123", "wrong regex group #0")
assert(p[1] == "bc12", "wrong regex group #1")
end})
-- Send EOF (^D), test method chaining.
cat:send("Closing...\r"):send("\004")
local v = expect(cat:eof {true},
cat:default {.5, function (p) error "expected EOF, got a timeout" end})