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lunit = require "lunit"
bit = bit32 or require "bit"
module("test_fcntl", lunit.testcase, package.seeall)
function test_sane_getfl()
local posix = require "posix"
local fd = posix.fileno(io.stdin)
local flags = posix.fcntl(fd, posix.F_GETFL)
assert_number(flags)
assert(flags >= 0, "returned flags are negative")
end
function test_setfl_works()
local posix = require "posix"
local fd = posix.fileno(io.stdin)
local flags = posix.fcntl(fd, posix.F_GETFL)
-- Remove NONBLOCK, if any
posix.fcntl(fd, posix.F_SETFL, bit.band(flags, bit.bnot(posix.O_NONBLOCK)))
flags = posix.fcntl(fd, posix.F_GETFL)
assert(bit.band(flags, posix.O_NONBLOCK) == 0, "Removal of O_NONBLOCK failed")
posix.fcntl(fd, posix.F_SETFL, bit.bor(flags, posix.O_NONBLOCK))
flags = posix.fcntl(fd, posix.F_GETFL)
assert(bit.band(flags, posix.O_NONBLOCK) ~= 0, "Set of O_NONBLOCK failed")
end
function test_negative_fd_fails()
local posix = require "posix"
ret, msg, errno = posix.fcntl(-7, posix.F_GETFL)
assert_nil(ret)
end
function test_nonopen_fd_fails()
local posix = require "posix"
ret, msg, errno = posix.fcntl(666, posix.F_GETFL)
assert_nil(ret)
end
function test_wrong_userdata_fails()
local posix = require "posix"
assert_error("Passing wrong type instead of fd does not bomb out",
function()
posix.fcntl("foobar", posix.F_GETFL)
end)
end
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