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# frozen_string_literal: true
require "test_helper"
class RedisClient
class SubscriptionsTest < RedisClientTestCase
include ClientTestHelper
def setup
super
@subscription = @redis.pubsub
end
def test_subscribe
assert_nil @subscription.call("SUBSCRIBE", "mychannel")
@redis.pipelined do |pipeline|
3.times do |i|
pipeline.call("PUBLISH", "mychannel", "event-#{i}")
end
end
events = []
while event = @subscription.next_event
events << event
end
assert_equal [
["subscribe", "mychannel", 1],
["message", "mychannel", "event-0"],
["message", "mychannel", "event-1"],
["message", "mychannel", "event-2"],
], events
end
def test_psubscribe
assert_nil @subscription.call("PSUBSCRIBE", "my*")
@redis.pipelined do |pipeline|
3.times do |i|
pipeline.call("PUBLISH", "mychannel", "event-#{i}")
end
end
events = []
while event = @subscription.next_event
events << event
end
assert_equal [
["psubscribe", "my*", 1],
["pmessage", "my*", "mychannel", "event-0"],
["pmessage", "my*", "mychannel", "event-1"],
["pmessage", "my*", "mychannel", "event-2"],
], events
end
def test_connection_lost
assert_nil @subscription.call("SUBSCRIBE", "mychannel")
@redis.call("PUBLISH", "mychannel", "event-0")
assert_equal ["subscribe", "mychannel", 1], @subscription.next_event
assert_equal ["message", "mychannel", "event-0"], @subscription.next_event
assert_nil @subscription.next_event(0.2)
assert_nil @subscription.next_event(0.2)
end
def test_close
assert_nil @subscription.call("SUBSCRIBE", "mychannel")
@redis.pipelined do |pipeline|
3.times do |i|
pipeline.call("PUBLISH", "mychannel", "event-#{i}")
end
end
assert_equal ["subscribe", "mychannel", 1], @subscription.next_event
assert_equal @subscription, @subscription.close
assert_raises ConnectionError do
@subscription.next_event
end
end
def test_next_event_timeout
assert_nil @subscription.next_event(0.01)
end
def test_pubsub_with_disabled_reconnection
@redis.send(:ensure_connected, retryable: false) do
refute_nil @redis.pubsub
end
end
def test_pubsub_timeout_retry
assert_nil @subscription.call("SUBSCRIBE", "mychannel")
refute_nil @subscription.next_event # subscribed event
assert_nil @subscription.next_event(0.01)
@redis.call("PUBLISH", "mychannel", "test")
1.times.each do # rubocop:disable Lint/UselessTimes
# We use 1.times.each to change the stack depth.
# See https://github.com/redis-rb/redis-client/issues/221
refute_nil @subscription.next_event
end
end
end
end
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