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# coding: US-ASCII
require 'test/unit'
require 'logger'
require 'tempfile'
require 'tmpdir'
require_relative '../ruby/envutil'
class TestLogDevice < Test::Unit::TestCase
class LogExcnRaiser
def write(*arg)
raise 'disk is full'
end
def close
end
def stat
Object.new
end
end
def setup
@tempfile = Tempfile.new("logger")
@tempfile.close
@filename = @tempfile.path
File.unlink(@filename)
end
def teardown
@tempfile.close(true)
end
def d(log, opt = {})
Logger::LogDevice.new(log, opt)
end
def test_initialize
logdev = d(STDERR)
assert_equal(STDERR, logdev.dev)
assert_nil(logdev.filename)
assert_raises(TypeError) do
d(nil)
end
#
logdev = d(@filename)
begin
assert(File.exist?(@filename))
assert(logdev.dev.sync)
assert_equal(@filename, logdev.filename)
logdev.write('hello')
ensure
logdev.close
end
# create logfile whitch is already exist.
logdev = d(@filename)
begin
logdev.write('world')
logfile = File.read(@filename)
assert_equal(2, logfile.split(/\n/).size)
assert_match(/^helloworld$/, logfile)
ensure
logdev.close
end
end
def test_write
r, w = IO.pipe
logdev = d(w)
logdev.write("msg2\n\n")
IO.select([r], nil, nil, 0.1)
w.close
msg = r.read
r.close
assert_equal("msg2\n\n", msg)
#
logdev = d(LogExcnRaiser.new)
class << (stderr = '')
alias write <<
end
$stderr, stderr = stderr, $stderr
begin
assert_nothing_raised do
logdev.write('hello')
end
ensure
logdev.close
$stderr, stderr = stderr, $stderr
end
assert_equal "log writing failed. disk is full\n", stderr
end
def test_close
r, w = IO.pipe
logdev = d(w)
logdev.write("msg2\n\n")
IO.select([r], nil, nil, 0.1)
assert(!w.closed?)
logdev.close
assert(w.closed?)
r.close
end
def test_shifting_size
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_1.log'])
logfile = tmpfile.path
logfile0 = logfile + '.0'
logfile1 = logfile + '.1'
logfile2 = logfile + '.2'
logfile3 = logfile + '.3'
tmpfile.close(true)
File.unlink(logfile) if File.exist?(logfile)
File.unlink(logfile0) if File.exist?(logfile0)
File.unlink(logfile1) if File.exist?(logfile1)
File.unlink(logfile2) if File.exist?(logfile2)
logger = Logger.new(logfile, 4, 100)
logger.error("0" * 15)
assert(File.exist?(logfile))
assert(!File.exist?(logfile0))
logger.error("0" * 15)
assert(File.exist?(logfile0))
assert(!File.exist?(logfile1))
logger.error("0" * 15)
assert(File.exist?(logfile1))
assert(!File.exist?(logfile2))
logger.error("0" * 15)
assert(File.exist?(logfile2))
assert(!File.exist?(logfile3))
logger.error("0" * 15)
assert(!File.exist?(logfile3))
logger.error("0" * 15)
assert(!File.exist?(logfile3))
logger.close
File.unlink(logfile)
File.unlink(logfile0)
File.unlink(logfile1)
File.unlink(logfile2)
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_2.log'])
logfile = tmpfile.path
logfile0 = logfile + '.0'
logfile1 = logfile + '.1'
logfile2 = logfile + '.2'
logfile3 = logfile + '.3'
tmpfile.close(true)
logger = Logger.new(logfile, 4, 150)
logger.error("0" * 15)
assert(File.exist?(logfile))
assert(!File.exist?(logfile0))
logger.error("0" * 15)
assert(!File.exist?(logfile0))
logger.error("0" * 15)
assert(File.exist?(logfile0))
assert(!File.exist?(logfile1))
logger.error("0" * 15)
assert(!File.exist?(logfile1))
logger.error("0" * 15)
assert(File.exist?(logfile1))
assert(!File.exist?(logfile2))
logger.error("0" * 15)
assert(!File.exist?(logfile2))
logger.error("0" * 15)
assert(File.exist?(logfile2))
assert(!File.exist?(logfile3))
logger.error("0" * 15)
assert(!File.exist?(logfile3))
logger.error("0" * 15)
assert(!File.exist?(logfile3))
logger.error("0" * 15)
assert(!File.exist?(logfile3))
logger.close
File.unlink(logfile)
File.unlink(logfile0)
File.unlink(logfile1)
File.unlink(logfile2)
end
def test_shifting_age_variants
logger = Logger.new(@filename, 'daily')
logger.info('daily')
logger.close
logger = Logger.new(@filename, 'weekly')
logger.info('weekly')
logger.close
logger = Logger.new(@filename, 'monthly')
logger.info('monthly')
logger.close
end
def test_shifting_age
# shift_age other than 'daily', 'weekly', and 'monthly' means 'everytime'
yyyymmdd = Time.now.strftime("%Y%m%d")
filename1 = @filename + ".#{yyyymmdd}"
filename2 = @filename + ".#{yyyymmdd}.1"
filename3 = @filename + ".#{yyyymmdd}.2"
begin
logger = Logger.new(@filename, 'now')
assert(File.exist?(@filename))
assert(!File.exist?(filename1))
assert(!File.exist?(filename2))
assert(!File.exist?(filename3))
logger.info("0" * 15)
assert(File.exist?(@filename))
assert(File.exist?(filename1))
assert(!File.exist?(filename2))
assert(!File.exist?(filename3))
logger.warn("0" * 15)
assert(File.exist?(@filename))
assert(File.exist?(filename1))
assert(File.exist?(filename2))
assert(!File.exist?(filename3))
logger.error("0" * 15)
assert(File.exist?(@filename))
assert(File.exist?(filename1))
assert(File.exist?(filename2))
assert(File.exist?(filename3))
ensure
logger.close if logger
[filename1, filename2, filename3].each do |filename|
File.unlink(filename) if File.exist?(filename)
end
end
end
def test_shifting_size_in_multiprocess
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_1.log'])
logfile = tmpfile.path
logfile0 = logfile + '.0'
logfile1 = logfile + '.1'
logfile2 = logfile + '.2'
tmpfile.close(true)
File.unlink(logfile) if File.exist?(logfile)
File.unlink(logfile0) if File.exist?(logfile0)
File.unlink(logfile1) if File.exist?(logfile1)
File.unlink(logfile2) if File.exist?(logfile2)
begin
stderr = run_children(2, [logfile], <<-'END')
logger = Logger.new(ARGV[0], 4, 10)
10.times do
logger.info '0' * 15
end
END
assert_no_match(/log shifting failed/, stderr)
assert_no_match(/log writing failed/, stderr)
assert_no_match(/log rotation inter-process lock failed/, stderr)
ensure
File.unlink(logfile) if File.exist?(logfile)
File.unlink(logfile0) if File.exist?(logfile0)
File.unlink(logfile1) if File.exist?(logfile1)
File.unlink(logfile2) if File.exist?(logfile2)
end
end
def test_shifting_age_in_multiprocess
yyyymmdd = Time.now.strftime("%Y%m%d")
begin
stderr = run_children(2, [@filename], <<-'END')
logger = Logger.new(ARGV[0], 'now')
10.times do
logger.info '0' * 15
end
END
assert_no_match(/log shifting failed/, stderr)
assert_no_match(/log writing failed/, stderr)
assert_no_match(/log rotation inter-process lock failed/, stderr)
ensure
Dir.glob("#{@filename}.#{yyyymmdd}{,.[1-9]*}") do |filename|
File.unlink(filename) if File.exist?(filename)
end
end
end
def test_open_logfile_in_multiprocess
tmpfile = Tempfile.new([File.basename(__FILE__, '.*'), '_1.log'])
logfile = tmpfile.path
tmpfile.close(true)
begin
20.times do
run_children(2, [logfile], <<-'END')
logfile = ARGV[0]
logdev = Logger::LogDevice.new(logfile)
logdev.send(:open_logfile, logfile)
END
assert_equal(1, File.readlines(logfile).grep(/# Logfile created on/).size)
File.unlink(logfile)
end
ensure
File.unlink(logfile) if File.exist?(logfile)
end
end
def test_shifting_size_not_rotate_too_much
d(@filename).__send__(:add_log_header, @tempfile)
header_size = @tempfile.size
message = "*" * 99 + "\n"
shift_size = header_size + message.size * 3 - 1
opt = {shift_age: 1, shift_size: shift_size}
Dir.mktmpdir do |tmpdir|
begin
log = File.join(tmpdir, "log")
logdev1 = d(log, opt)
logdev2 = d(log, opt)
assert_file.identical?(log, logdev1.dev)
assert_file.identical?(log, logdev2.dev)
3.times{logdev1.write(message)}
assert_file.identical?(log, logdev1.dev)
assert_file.identical?(log, logdev2.dev)
logdev1.write(message)
assert_file.identical?(log, logdev1.dev)
assert_file.identical?(log + ".0", logdev2.dev)
logdev2.write(message)
assert_file.identical?(log, logdev1.dev)
assert_file.identical?(log, logdev2.dev)
logdev1.write(message)
assert_file.identical?(log, logdev1.dev)
assert_file.identical?(log, logdev2.dev)
ensure
logdev1.close if logdev1
logdev2.close if logdev2
end
end
end unless /mswin|mingw/ =~ RUBY_PLATFORM
private
def run_children(n, args, src)
r, w = IO.pipe
[w, *(1..n).map do
f = IO.popen([EnvUtil.rubybin, *%w[--disable=gems -rlogger -], *args], "w", err: w)
f.puts(src)
f
end].each(&:close)
stderr = r.read
r.close
stderr
end
end
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