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require 'spec_helper'
require 'timeout'
require "tmpdir"
class TestServer
include Logging
include Daemonizable
def stop
end
def name
'Thin test server'
end
end
describe 'Daemonizing' do
let(:log_file) {File.join(@root, "test_server.log")}
let(:pid_file) {File.join(@root, "test.pid")}
around do |example|
Dir.mktmpdir do |root|
@root = root
# Ensure the log file exists with the correct permissions:
File.open(log_file, "w+") {}
example.run
@root = nil
end
end
subject(:server) do
raise "No root directory" unless @root
TestServer.new.tap do |server|
server.log_file = log_file
server.pid_file = pid_file
end
end
it 'should have a pid file' do
expect(subject).to respond_to(:pid_file)
expect(subject).to respond_to(:pid_file=)
end
it 'should create a pid file' do
fork do
subject.daemonize
sleep
end
wait_for_server_to_start
subject.kill
end
it 'should redirect stdio to a log file' do
pid = fork do
subject.daemonize
puts "simple puts"
STDERR.puts "STDERR.puts"
STDOUT.puts "STDOUT.puts"
sleep
end
wait_for_server_to_start
log = File.read(log_file)
expect(log).to include('simple puts', 'STDERR.puts', 'STDOUT.puts')
server.kill
end
xit 'should change privilege' do
pid = fork do
subject.change_privilege('root', 'admin')
end
_, status = Process.wait2(pid)
expect(status).to be_a_success
end
it 'should kill process in pid file' do
expect(File.exist?(subject.pid_file)).to be_falsey
pid = fork do
subject.daemonize
sleep
end
wait_for_server_to_start
expect(File.exist?(subject.pid_file)).to be_truthy
silence_stream STDOUT do
subject.kill(1)
end
Process.wait(pid)
expect(File.exist?(subject.pid_file)).to be_falsey
end
it 'should force kill process in pid file' do
fork do
subject.daemonize
sleep
end
wait_for_server_to_start
subject.kill(0)
expect(File.exist?(subject.pid_file)).to be_falsey
end
it 'should send kill signal if timeout' do
fork do
subject.daemonize
sleep
end
wait_for_server_to_start
pid = subject.pid
subject.kill(10)
expect(File.exist?(subject.pid_file)).to be_falsey
expect(Process.running?(pid)).to be_falsey
end
it "should restart" do
fork do
subject.on_restart {}
subject.daemonize
sleep 5
end
wait_for_server_to_start
silence_stream STDOUT do
TestServer.restart(subject.pid_file)
end
expect { sleep 0.1 while File.exist?(subject.pid_file) }.to take_less_then(20)
end
it "should ignore if no restart block specified" do
subject.restart
end
it "should not restart when not running" do
silence_stream STDOUT do
subject.restart
end
end
it "should exit and raise if pid file already exist" do
fork do
subject.daemonize
sleep 5
end
wait_for_server_to_start
expect { subject.daemonize }.to raise_error(PidFileExist)
expect(File.exist?(subject.pid_file)).to be_truthy
end
it "should raise if no pid file" do
expect do
TestServer.kill("donotexist", 0)
end.to raise_error(PidFileNotFound)
end
it "should should delete pid file if stale" do
# Create a file w/ a PID that does not exist
File.open(subject.pid_file, 'w') { |f| f << 999999999 }
subject.send(:remove_stale_pid_file)
expect(File.exist?(subject.pid_file)).to be_falsey
end
private
def wait_for_server_to_start
count = 1
while true
break if File.exist?(subject.pid_file)
sleep(count * 0.1)
if count > 10
$stderr.puts "Dumping log file #{subject.log_file}:"
File.foreach(subject.log_file) do |line|
$stderr.puts line
end
raise "Server did not start"
end
count += 1
end
end
end
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