151 lines
3.5 KiB
Ruby
151 lines
3.5 KiB
Ruby
require_relative 'test_helper'
|
|
|
|
class StreamingTest < Minitest::Test
|
|
Stream = Sinatra::Helpers::Stream
|
|
|
|
it 'returns the concatenated body' do
|
|
mock_app do
|
|
get('/') do
|
|
stream do |out|
|
|
out << "Hello" << " "
|
|
out << "World!"
|
|
end
|
|
end
|
|
end
|
|
|
|
get('/')
|
|
assert_body "Hello World!"
|
|
end
|
|
|
|
it 'always yields strings' do
|
|
stream = Stream.new { |out| out << :foo }
|
|
stream.each { |str| assert_equal 'foo', str }
|
|
end
|
|
|
|
it 'postpones body generation' do
|
|
step = 0
|
|
|
|
stream = Stream.new do |out|
|
|
10.times do
|
|
out << step
|
|
step += 1
|
|
end
|
|
end
|
|
|
|
stream.each do |s|
|
|
assert_equal s, step.to_s
|
|
step += 1
|
|
end
|
|
end
|
|
|
|
it 'calls the callback after it is done' do
|
|
step = 0
|
|
final = 0
|
|
stream = Stream.new { |_| 10.times { step += 1 }}
|
|
stream.callback { final = step }
|
|
stream.each {|_|}
|
|
assert_equal 10, final
|
|
end
|
|
|
|
it 'does not trigger the callback if close is set to :keep_open' do
|
|
step = 0
|
|
final = 0
|
|
stream = Stream.new(Stream, :keep_open) { |_| 10.times { step += 1 } }
|
|
stream.callback { final = step }
|
|
stream.each {|_|}
|
|
assert_equal 0, final
|
|
end
|
|
|
|
it 'allows adding more than one callback' do
|
|
a = b = false
|
|
stream = Stream.new { }
|
|
stream.callback { a = true }
|
|
stream.callback { b = true }
|
|
stream.each {|_| }
|
|
assert a, 'should trigger first callback'
|
|
assert b, 'should trigger second callback'
|
|
end
|
|
|
|
class MockScheduler
|
|
def initialize(*) @schedule, @defer = [], [] end
|
|
def schedule(&block) @schedule << block end
|
|
def defer(&block) @defer << block end
|
|
def schedule!(*) @schedule.pop.call until @schedule.empty? end
|
|
def defer!(*) @defer.pop.call until @defer.empty? end
|
|
end
|
|
|
|
it 'allows dropping in another scheduler' do
|
|
scheduler = MockScheduler.new
|
|
processing = sending = done = false
|
|
|
|
stream = Stream.new(scheduler) do |out|
|
|
processing = true
|
|
out << :foo
|
|
end
|
|
|
|
stream.each { sending = true}
|
|
stream.callback { done = true }
|
|
|
|
scheduler.schedule!
|
|
assert !processing
|
|
assert !sending
|
|
assert !done
|
|
|
|
scheduler.defer!
|
|
assert processing
|
|
assert !sending
|
|
assert !done
|
|
|
|
scheduler.schedule!
|
|
assert sending
|
|
assert done
|
|
end
|
|
|
|
it 'schedules exceptions to be raised on the main thread/event loop/...' do
|
|
scheduler = MockScheduler.new
|
|
Stream.new(scheduler) { fail 'should be caught' }.each { }
|
|
scheduler.defer!
|
|
assert_raises(RuntimeError) { scheduler.schedule! }
|
|
end
|
|
|
|
it 'does not trigger an infinite loop if you call close in a callback' do
|
|
stream = Stream.new { |out| out.callback { out.close }}
|
|
stream.each { |_| }
|
|
end
|
|
|
|
it 'gives access to route specific params' do
|
|
mock_app do
|
|
get('/:name') do
|
|
stream { |o| o << params[:name] }
|
|
end
|
|
end
|
|
get '/foo'
|
|
assert_body 'foo'
|
|
end
|
|
|
|
it 'sets up async.close if available' do
|
|
ran = false
|
|
mock_app do
|
|
get('/') do
|
|
close = Object.new
|
|
def close.callback; yield end
|
|
def close.errback; end
|
|
env['async.close'] = close
|
|
stream(:keep_open) do |out|
|
|
out.callback { ran = true }
|
|
out.close
|
|
end
|
|
end
|
|
end
|
|
get '/'
|
|
assert ran
|
|
end
|
|
|
|
it 'has a public interface to inspect its open/closed state' do
|
|
stream = Stream.new(Stream) { |out| out << :foo }
|
|
assert !stream.closed?
|
|
stream.close
|
|
assert stream.closed?
|
|
end
|
|
end
|