ref: 3b15a12f797b9b8c3d0d47d5576afcceccc18fe3
dir: /test.lua/
#!/bin/lu9
local p9 = require "p9"
local dump = (function()
local ok, inspect = pcall(require, "inspect")
if ok then return function(v) print(inspect(v)) end end
return print
end)()
local function tmp()
return string.format("/tmp/lua.%x", math.random(1e10))
end
local function rc()
os.execute("prompt='p9; ' rc -i")
end
p9.rfork("env name")
os.execute("ramfs")
-- File I/O
do
local s = string.rep("ABCD", 2048*2) -- 16k > standard 8k buffer
local f = tmp()
local fd = p9.create(f, "w")
fd:write(s)
fd:close()
fd = p9.open(f)
assert(fd:slurp() == s)
fd:close()
fd = p9.open(f, "r")
assert(fd:slurp(2048) == string.rep("ABCD", 512))
fd:close()
fd = p9.open(f, "r")
assert(fd:slurp(16*1024 + 999) == s)
fd:close()
fd = p9.open(f, "r")
assert(fd:seek(0, "end") == 16*1024)
assert(fd:seek(8192, "set") == 8192
and fd:slurp() == string.rep("ABCD", 2*1024))
fd:seek(0)
assert(fd:seek(16*1024 - 4, "cur") == 16*1024 - 4
and fd:slurp() == "ABCD")
fd:close()
end
-- File objects
-- Closing
-- Make sure it's closed
local fd
do
local f <close> = p9.create(tmp())
fd = f.fd
end
assert(p9.file(fd):close() == nil)
-- Make sure it's not closed
local fd
do
local f = p9.create(tmp())
fd = f.fd
end
assert(p9.file(fd):seek(0))
p9.file(fd):close()
-- file:path()
do
local f = p9.create("/tmp/fd2path")
assert(f:path() == "/tmp/fd2path")
f:close()
end
-- file:iounit()
do
local f = assert(p9.open("/srv/slashmnt"))
assert(f:iounit() ~= 0)
f:close()
end
-- file:dup()
do
local a, b = assert(p9.pipe())
local c = assert(a:dup())
a:write("hello")
assert(b:read() == "hello")
c:write("world")
assert(b:read() == "world")
a:close() b:close() c:close()
a = assert(p9.open("/lib/glass"))
local buf = a:read()
b = assert(p9.open("/lib/bullshit"))
b = assert(a:dup(b))
b:seek(0)
assert(b:read() == buf)
end
-- access
do
assert(p9.access("/dev/null"))
assert(p9.access("/dev/null", "read write"))
assert(p9.access("/bin/rc", "exec"))
end
-- pipe
do
local p₀, p₁ = assert(p9.pipe())
p₀:write("ABCD")
assert(p₁:read() == "ABCD")
p₀:close(); p₁:close()
end
-- wstat
do
local name = tmp()
assert(p9.create(name, nil, "644")):close()
assert(p9.wstat(name, {name = "notyourbusiness", mode = "append 777"}))
local st = assert(p9.stat("/tmp/notyourbusiness"))
assert(st.mode.file and st.mode.append and st.mode.perm == "rwxrwxrwx")
end
-- Filesystem
do
-- Create a test tree
local function File(data) return {
type = "file", perm = "644", data = data
} end
local function Dir(children) return {
type = "dir", perm = "dir 755", children = children
} end
local function mkfs(path, d)
assert(p9.create(path, nil, d.perm))
for name, c in pairs(d.children) do
local new = path .. "/" .. name
if c.type == "dir" then
mkfs(new, c)
else
local f <close> = assert(p9.create(new, "w", c.perm))
f:write(c.data)
end
end
end
local fs = Dir {
a = File "a",
b = Dir {},
c = Dir {
ca = File "ca",
cb = Dir {
cba = File "cba",
},
cc = File "cc",
},
d = File "d",
}
local function walk(fs)
dump(fs.perm)
for _, e in pairs(fs.children) do
if e.type == "dir" then
walk(e)
end
end
end
local ok, err = pcall(mkfs, "/tmp/fs", fs)
if not ok then print(err) end
-- Stat a file
assert(p9.stat("/tmp/fs/a").mode.file)
-- Walking
-- Walking a file (or any other error) must report an error
local e = {}
for w in p9.walk("/tmp/fs/a", e) do
assert(false)
end
assert(e.error == "walk in a non-directory")
-- Without error object an error must be thrown
assert(false == pcall(function()
for w in p9.walk("tmp/fs/a") do end
end))
-- Same should happen if the iterator function fails inside
-- the loop because of dirread(2) failure, but this kind of
-- failure is hard to simulate.
-- Walking a directory
local function compare(path, fs)
assert(fs.type == "dir")
for f in p9.walk(path) do
local new = path .. "/" .. f.name
if f.mode.dir then
if compare(new, fs.children[f.name]) == false then
return false
end
else
if fs.children[f.name] == nil then
error("file does not exist in proto")
end
end
end
return true
end
assert(compare("/tmp/fs", fs) == true)
end
-- Namespaces
-- bind and unmount work
do
local f
assert(p9.bind("#|", "/n/pipe"))
f = assert(p9.open("/n/pipe/data"))
assert(p9.unmount("/n/pipe"))
assert(p9.open("/n/pipe/data") == nil)
end
-- mount works
do
assert(p9.mount("/srv/cwfs", "/n/test"))
assert(p9.open("/n/test/lib/glass"))
end
-- Process control
-- No idea how to test this properly.
-- Environment variables
do
local e
assert(p9.env["sure-is-empty"] == nil)
-- Set and get a string variable
p9.env.test = "ABC"; assert(p9.env.test == "ABC")
-- Delete a variable
p9.env.test = nil; assert(p9.env.test == nil)
-- Set and get a list variable
p9.env.test = {"a", "b", "c"}
e = p9.env.test
assert(type(e) == "table"
and #e == 3 and e[1] == "a" and e[2] == "b" and e[3] == "c")
-- Ensure it's understood by rc
os.execute("echo -n $#test $test >/env/res")
assert(p9.env.res == "3 a b c")
-- Ensure we understand rc
os.execute("test=(d e f)")
e = p9.env.test
assert(type(e) == "table"
and #e == 3 and e[1] == "d" and e[2] == "e" and e[3] == "f")
p9.env.test = nil
end