ruby-lxc/test/tc_lxc_running.rb

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require 'test/unit'
require 'tempfile'
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require './lxc'
LXC_TEMPLATE = 'ubuntu'
CONTAINER_NAME = 'test'
CLONE_NAME = 'test_clone'
class TestLXCRunning < Test::Unit::TestCase
def setup
if Process::Sys::geteuid != 0
raise 'This test must be ran as root'
end
@name = CONTAINER_NAME
@container = LXC::Container.new(@name)
@container.create(LXC_TEMPLATE) unless @container.defined?
@container.start
end
def teardown
@container.shutdown(3)
if @container.running?
@container.stop
@container.wait('STOPPED', 3)
end
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end
def test_container_running
@container.wait('RUNNING', 3)
assert(@container.init_pid > 1)
assert(@container.running?)
assert_equal('RUNNING', @container.state)
end
def test_container_interfaces
assert_equal(['eth0', 'lo'], @container.interfaces.sort)
end
def test_container_ip_addresses
ips = nil
10.times do
ips = @container.ip_addresses
break unless ips.empty?
sleep 1
end
assert(ips.length > 0)
path = "/tmp/tc_lxc_running_ifconfig_eth0.#{Process.pid}"
file = File.open(path, 'w+')
begin
opts = {
:wait => true,
:stdout => file,
:namespaces => LXC::CLONE_NEWNET | LXC::CLONE_NEWUTS,
}
@container.attach(opts) do
LXC.run_command('ifconfig eth0')
end
file.rewind
assert_match(/^eth0\s+Link\sencap:Ethernet\s+HWaddr\s/, file.readline)
ensure
file.close
File.unlink(path)
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end
end
def test_container_cgroups
max_mem = @container.cgroup_item('memory.max_usage_in_bytes')
cur_lim = @container.cgroup_item('memory.limit_in_bytes')
assert_not_nil(@container.set_cgroup_item('memory.limit_in_bytes', max_mem))
assert_not_equal(cur_lim, @container.cgroup_item('memory.limit_in_bytes'))
end
def test_container_freeze
@container.freeze
@container.wait('FROZEN', 3)
assert(@container.init_pid > 1)
assert(@container.running?)
assert_equal('FROZEN', @container.state)
@container.unfreeze
@container.wait('RUNNING', 3)
assert(@container.init_pid > 1)
assert(@container.running?)
assert_equal('RUNNING', @container.state)
end
def test_container_clone
teardown
assert_nil(@container.init_pid)
assert(!@container.running?)
assert_equal('STOPPED', @container.state)
assert_nothing_raised do
begin
clone = @container.clone(CLONE_NAME)
clone.start
clone.stop
ensure
clone.destroy
end
end
end
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end