101 lines
2.4 KiB
Ruby
101 lines
2.4 KiB
Ruby
require File.expand_path('../helper', __FILE__)
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class StreamingTest < Test::Unit::TestCase
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Stream = Sinatra::Helpers::Stream
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it 'returns the concatinated body' do
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mock_app do
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get '/' do
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stream do |out|
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out << "Hello" << " "
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out << "World!"
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end
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end
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end
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get('/')
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assert_body "Hello World!"
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end
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it 'always yields strings' do
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stream = Stream.new { |out| out << :foo }
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stream.each { |str| assert_equal 'foo', str }
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end
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it 'postpones body generation' do
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step = 0
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stream = Stream.new do |out|
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10.times do
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out << step
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step += 1
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end
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end
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stream.each do |s|
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assert_equal s, step.to_s
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step += 1
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end
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end
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it 'calls the callback after it is done' do
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step = 0
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final = 0
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stream = Stream.new { |o| 10.times { step += 1 }}
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stream.callback { final = step }
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stream.each { |str| }
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assert_equal 10, final
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end
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it 'does not trigger the callback if close is set to :keep_open' do
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step = 0
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final = 0
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stream = Stream.new(Stream, :keep_open) { |o| 10.times { step += 1 } }
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stream.callback { final = step }
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stream.each { |str| }
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assert_equal 0, final
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end
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class MockScheduler
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def initialize(*) @schedule, @defer = [], [] end
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def schedule(&block) @schedule << block end
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def defer(&block) @defer << block end
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def schedule!(*) @schedule.pop.call until @schedule.empty? end
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def defer!(*) @defer.pop.call until @defer.empty? end
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end
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it 'allows dropping in another scheduler' do
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scheduler = MockScheduler.new
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processing = sending = done = false
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stream = Stream.new(scheduler) do |out|
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processing = true
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out << :foo
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end
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stream.each { sending = true}
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stream.callback { done = true }
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scheduler.schedule!
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assert !processing
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assert !sending
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assert !done
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scheduler.defer!
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assert processing
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assert !sending
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assert !done
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scheduler.schedule!
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assert sending
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assert done
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end
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it 'schedules exceptions to be raised on the main thread/event loop/...' do
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scheduler = MockScheduler.new
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Stream.new(scheduler) { fail 'should be caught' }.each { }
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scheduler.defer!
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assert_raise(RuntimeError) { scheduler.schedule! }
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end
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end
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