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| | # -*- encoding: binary -*-
require 'test/unit'
$TESTING = true
require 'mogilefs'
require 'mogilefs/pool'
class MogileFS::Pool
attr_reader :objects, :queue
end
class Resource; end
class ResourceWithArgs
def initialize(args)
end
end
class TestPool < Test::Unit::TestCase
def setup
@pool = MogileFS::Pool.new Resource
end
def test_get
o1 = @pool.get
o2 = @pool.get
assert_kind_of Resource, o1
assert_kind_of Resource, o2
assert_not_equal o1, o2
end
def test_get_with_args
@pool = MogileFS::Pool.new ResourceWithArgs, 'my arg'
o = @pool.get
assert_kind_of ResourceWithArgs, o
end
def test_put
o = @pool.get
@pool.put o
assert_raises(MogileFS::Pool::BadObjectError) { @pool.put nil }
assert_raises(MogileFS::Pool::BadObjectError) { @pool.put Resource.new }
end
def test_put_destroy
objs = (0...7).map { @pool.get } # pool full
assert_equal 7, @pool.objects.length
assert_equal 0, @pool.queue.length
4.times { @pool.put objs.shift }
assert_equal 7, @pool.objects.length
assert_equal 4, @pool.queue.length
@pool.put objs.shift # trip threshold
assert_equal 4, @pool.objects.length
assert_equal 2, @pool.queue.length
@pool.put objs.shift # don't need to remove any more
assert_equal 4, @pool.objects.length
assert_equal 3, @pool.queue.length
@pool.put objs.shift until objs.empty?
assert_equal 4, @pool.objects.length
assert_equal 4, @pool.queue.length
end
def test_use
val = @pool.use { |o| assert_kind_of Resource, o }
assert_equal nil, val, "Don't return object from pool"
end
def test_use_with_exception
@pool.use { |o| raise } rescue nil
assert_equal 1, @pool.queue.length, "Resource not returned to pool"
end
def test_use_reuse
o1 = nil
o2 = nil
@pool.use { |o| o1 = o }
@pool.use { |o| o2 = o }
assert_equal o1, o2, "Objects must be reused"
end
end
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