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# coding: UTF-8
require 'test/unit'
require 'posix-spawn'
class ChildTest < Test::Unit::TestCase
include POSIX::Spawn
def test_sanity
assert_same POSIX::Spawn::Child, Child
end
def test_argv_array_execs
p = Child.new('printf', '%s %s %s', '1', '2', '3 4')
assert p.success?
assert_equal "1 2 3 4", p.out
end
def test_argv_string_uses_sh
p = Child.new("echo via /bin/sh")
assert p.success?
assert_equal "via /bin/sh\n", p.out
end
def test_stdout
p = Child.new('echo', 'boom')
assert_equal "boom\n", p.out
assert_equal "", p.err
end
def test_stderr
p = Child.new('echo boom 1>&2')
assert_equal "", p.out
assert_equal "boom\n", p.err
end
def test_status
p = Child.new('exit 3')
assert !p.status.success?
assert_equal 3, p.status.exitstatus
end
def test_env
p = Child.new({ 'FOO' => 'BOOYAH' }, 'echo $FOO')
assert_equal "BOOYAH\n", p.out
end
def test_chdir
p = Child.new("pwd", :chdir => File.dirname(Dir.pwd))
assert_equal File.dirname(Dir.pwd) + "\n", p.out
end
def test_input
input = "HEY NOW\n" * 100_000 # 800K
p = Child.new('wc', '-l', :input => input)
assert_equal 100_000, p.out.strip.to_i
end
def test_max
assert_raise MaximumOutputExceeded do
Child.new('yes', :max => 100_000)
end
end
def test_max_with_child_hierarchy
assert_raise MaximumOutputExceeded do
Child.new('/bin/sh', '-c', 'yes', :max => 100_000)
end
end
def test_max_with_stubborn_child
assert_raise MaximumOutputExceeded do
Child.new("trap '' TERM; yes", :max => 100_000)
end
end
def test_timeout
start = Time.now
assert_raise TimeoutExceeded do
Child.new('sleep', '1', :timeout => 0.05)
end
assert (Time.now-start) <= 0.2
end
def test_timeout_with_child_hierarchy
assert_raise TimeoutExceeded do
Child.new('/bin/sh', '-c', 'sleep 1', :timeout => 0.05)
end
end
def test_lots_of_input_and_lots_of_output_at_the_same_time
input = "stuff on stdin \n" * 1_000
command = "
while read line
do
echo stuff on stdout;
echo stuff on stderr 1>&2;
done
"
p = Child.new(command, :input => input)
assert_equal input.size, p.out.size
assert_equal input.size, p.err.size
assert p.success?
end
def test_input_cannot_be_written_due_to_broken_pipe
input = "1" * 100_000
p = Child.new('false', :input => input)
assert !p.success?
end
def test_utf8_input
input = "hålø"
p = Child.new('cat', :input => input)
assert p.success?
end
end
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