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require 'abstract_unit'
require 'action_controller/cgi_process'
require 'action_controller/cgi_ext'
class CGI::Session
def cache
dbman.instance_variable_get(:@cache)
end
end
uses_mocha 'MemCacheStore tests' do
if defined? MemCache::MemCacheError
class MemCacheStoreTest < Test::Unit::TestCase
SESSION_KEY_RE = /^session:[0-9a-z]+/
CONN_TEST_KEY = 'connection_test'
MULTI_TEST_KEY = '0123456789'
TEST_DATA = 'Hello test'
def self.get_mem_cache_if_available
begin
require 'memcache'
cache = MemCache.new('127.0.0.1')
# Test availability of the connection
cache.set(CONN_TEST_KEY, 1)
unless cache.get(CONN_TEST_KEY) == 1
puts 'Warning: memcache server available but corrupted.'
return nil
end
rescue LoadError, MemCache::MemCacheError
return nil
end
return cache
end
CACHE = get_mem_cache_if_available
def test_initialization
assert_raise(ArgumentError) { new_session('session_id' => '!invalid_id') }
new_session do |s|
assert_equal Hash.new, s.cache.get('session:' + s.session_id)
end
end
def test_storage
d = rand(0xffff)
new_session do |s|
session_key = 'session:' + s.session_id
unless CACHE
s.cache.expects(:get).with(session_key) \
.returns(:test => d)
s.cache.expects(:set).with(session_key,
has_entry(:test, d),
0)
end
s[:test] = d
s.close
assert_equal d, s.cache.get(session_key)[:test]
assert_equal d, s[:test]
end
end
def test_deletion
new_session do |s|
session_key = 'session:' + s.session_id
unless CACHE
s.cache.expects(:delete)
s.cache.expects(:get).with(session_key) \
.returns(nil)
end
s[:test] = rand(0xffff)
s.delete
assert_nil s.cache.get(session_key)
end
end
def test_other_session_retrieval
new_session do |sa|
unless CACHE
sa.cache.expects(:set).with('session:' + sa.session_id,
has_entry(:test, TEST_DATA),
0)
end
sa[:test] = TEST_DATA
sa.close
new_session('session_id' => sa.session_id) do |sb|
unless CACHE
sb.cache.expects(:[]).with('session:' + sb.session_id) \
.returns(:test => TEST_DATA)
end
assert_equal(TEST_DATA, sb[:test])
end
end
end
def test_multiple_sessions
s_slots = Array.new(10)
operation = :write
last_data = nil
reads = writes = 0
50.times do
current = rand(10)
s_slots[current] ||= new_session('session_id' => MULTI_TEST_KEY,
'new_session' => true)
s = s_slots[current]
case operation
when :write
last_data = rand(0xffff)
unless CACHE
s.cache.expects(:set).with('session:' + MULTI_TEST_KEY,
{ :test => last_data },
0)
end
s[:test] = last_data
s.close
writes += 1
when :read
# Make CGI::Session#[] think there was no data retrieval yet.
# Normally, the session caches the data during its lifetime.
s.instance_variable_set(:@data, nil)
unless CACHE
s.cache.expects(:[]).with('session:' + MULTI_TEST_KEY) \
.returns(:test => last_data)
end
d = s[:test]
assert_equal(last_data, d, "OK reads: #{reads}, OK writes: #{writes}")
reads += 1
end
operation = rand(5) == 0 ? :write : :read
end
end
private
def obtain_session_options
options = { 'database_manager' => CGI::Session::MemCacheStore,
'session_key' => '_test_app_session'
}
# if don't have running memcache server we use mock instead
unless CACHE
options['cache'] = c = mock
c.stubs(:[]).with(regexp_matches(SESSION_KEY_RE))
c.stubs(:get).with(regexp_matches(SESSION_KEY_RE)) \
.returns(Hash.new)
c.stubs(:add).with(regexp_matches(SESSION_KEY_RE),
instance_of(Hash),
0)
end
options
end
def new_session(options = {})
with_cgi do |cgi|
@options = obtain_session_options.merge(options)
session = CGI::Session.new(cgi, @options)
yield session if block_given?
return session
end
end
def with_cgi
ENV['REQUEST_METHOD'] = 'GET'
ENV['HTTP_HOST'] = 'example.com'
ENV['QUERY_STRING'] = ''
cgi = CGI.new('query', StringIO.new(''))
yield cgi if block_given?
cgi
end
end
end # defined? MemCache
end # uses_mocha
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