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rails--rails/actionpack/test/dispatch/live_response_test.rb
2018-01-25 23:32:59 -05:00

98 lines
2.6 KiB
Ruby

# frozen_string_literal: true
require "abstract_unit"
require "concurrent/atomic/count_down_latch"
module ActionController
module Live
class ResponseTest < ActiveSupport::TestCase
def setup
@response = Live::Response.new
@response.request = ActionDispatch::Request.empty
end
def test_header_merge
header = @response.header.merge("Foo" => "Bar")
assert_kind_of(ActionController::Live::Response::Header, header)
assert_not_equal header, @response.header
end
def test_initialize_with_default_headers
r = Class.new(Live::Response) do
def self.default_headers
{ "omg" => "g" }
end
end
header = r.new.header
assert_kind_of(ActionController::Live::Response::Header, header)
end
def test_parallel
latch = Concurrent::CountDownLatch.new
t = Thread.new {
@response.stream.write "foo"
latch.wait
@response.stream.close
}
@response.await_commit
@response.each do |part|
assert_equal "foo", part
latch.count_down
end
assert t.join
end
def test_setting_body_populates_buffer
@response.body = "omg"
@response.close
assert_equal ["omg"], @response.body_parts
end
def test_cache_control_is_set
@response.stream.write "omg"
assert_equal "no-cache", @response.headers["Cache-Control"]
end
def test_content_length_is_removed
@response.headers["Content-Length"] = "1234"
@response.stream.write "omg"
assert_nil @response.headers["Content-Length"]
end
def test_headers_cannot_be_written_after_webserver_reads
@response.stream.write "omg"
latch = Concurrent::CountDownLatch.new
t = Thread.new {
@response.each do
latch.count_down
end
}
latch.wait
assert_predicate @response.headers, :frozen?
e = assert_raises(ActionDispatch::IllegalStateError) do
@response.headers["Content-Length"] = "zomg"
end
assert_equal "header already sent", e.message
@response.stream.close
t.join
end
def test_headers_cannot_be_written_after_close
@response.stream.close
# we can add data until it's actually written, which happens on `each`
@response.each { |x| }
e = assert_raises(ActionDispatch::IllegalStateError) do
@response.headers["Content-Length"] = "zomg"
end
assert_equal "header already sent", e.message
end
end
end
end