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connection_pool/test/test_connection_pool_timed_stack.rb
Eric Hodel 708ab9a6c4 ConnectionPool::TimedStack is now lazy
Now TimedStack only creates connections when the internal queue is empty
and the number of connections is less than the maximum set.  By default
no connections are created when the pool is created.

This required some changes to the TimedStack tests because I wrote poor
tests the first time around.  The new tests better exercise the intended
behavior of TimedStack.

This required some changes to the ConnectionPool tests to use up
connections because now an unused pool has no connections.
2014-02-17 16:25:22 -08:00

123 lines
1.9 KiB
Ruby

Thread.abort_on_exception = true
require 'helper'
class TestConnectionPoolTimedStack < Minitest::Test
def setup
@stack = ConnectionPool::TimedStack.new { Object.new }
end
def test_empty_eh
stack = ConnectionPool::TimedStack.new(1) { Object.new }
refute_empty stack
popped = stack.pop
assert_empty stack
stack.push popped
refute_empty stack
end
def test_length
stack = ConnectionPool::TimedStack.new(1) { Object.new }
assert_equal 1, stack.length
popped = stack.pop
assert_equal 0, stack.length
stack.push popped
assert_equal 1, stack.length
end
def test_pop
object = Object.new
@stack.push object
popped = @stack.pop
assert_same object, popped
end
def test_pop_empty
e = assert_raises Timeout::Error do
@stack.pop 0
end
assert_equal 'Waited 0 sec', e.message
end
def test_pop_full
stack = ConnectionPool::TimedStack.new(1) { Object.new }
popped = stack.pop
refute_nil popped
assert_empty stack
end
def test_pop_wait
thread = Thread.start do
@stack.pop
end
Thread.pass while thread.status == 'run'
object = Object.new
@stack.push object
assert_same object, thread.value
end
def test_pop_shutdown
@stack.shutdown { }
assert_raises ConnectionPool::PoolShuttingDownError do
@stack.pop
end
end
def test_push
stack = ConnectionPool::TimedStack.new(1) { Object.new }
conn = stack.pop
stack.push conn
refute_empty stack
end
def test_push_shutdown
called = []
@stack.shutdown do |object|
called << object
end
@stack.push Object.new
refute_empty called
assert_empty @stack
end
def test_shutdown
@stack.push Object.new
called = []
@stack.shutdown do |object|
called << object
end
refute_empty called
assert_empty @stack
end
end