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# encoding: UTF-8
require File.expand_path("helper", File.dirname(__FILE__))
class SentinalTest < Test::Unit::TestCase
include Helper::Client
def test_sentinel_connection
sentinels = [{:host => "127.0.0.1", :port => 26381},
{:host => "127.0.0.1", :port => 26382}]
commands = {
:s1 => [],
:s2 => [],
}
handler = lambda do |id|
{
:sentinel => lambda do |command, *args|
commands[id] << [command, *args]
["127.0.0.1", "6381"]
end
}
end
RedisMock.start(handler.call(:s1)) do |s1_port|
RedisMock.start(handler.call(:s2)) do |s2_port|
sentinels[0][:port] = s1_port
sentinels[1][:port] = s2_port
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master)
assert redis.ping
end
end
assert_equal commands[:s1], [%w[get-master-addr-by-name master1]]
assert_equal commands[:s2], []
end
def test_sentinel_failover
sentinels = [{:host => "127.0.0.1", :port => 26381},
{:host => "127.0.0.1", :port => 26382}]
commands = {
:s1 => [],
:s2 => [],
}
s1 = {
:sentinel => lambda do |command, *args|
commands[:s1] << [command, *args]
"$-1" # Nil
end
}
s2 = {
:sentinel => lambda do |command, *args|
commands[:s2] << [command, *args]
["127.0.0.1", "6381"]
end
}
RedisMock.start(s1) do |s1_port|
RedisMock.start(s2) do |s2_port|
sentinels[0][:port] = s1_port
sentinels[1][:port] = s2_port
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master)
assert redis.ping
end
end
assert_equal commands[:s1], [%w[get-master-addr-by-name master1]]
assert_equal commands[:s2], [%w[get-master-addr-by-name master1]]
end
def test_sentinel_failover_prioritize_healthy_sentinel
sentinels = [{:host => "127.0.0.1", :port => 26381},
{:host => "127.0.0.1", :port => 26382}]
commands = {
:s1 => [],
:s2 => [],
}
s1 = {
:sentinel => lambda do |command, *args|
commands[:s1] << [command, *args]
"$-1" # Nil
end
}
s2 = {
:sentinel => lambda do |command, *args|
commands[:s2] << [command, *args]
["127.0.0.1", "6381"]
end
}
RedisMock.start(s1) do |s1_port|
RedisMock.start(s2) do |s2_port|
sentinels[0][:port] = s1_port
sentinels[1][:port] = s2_port
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master)
assert redis.ping
redis.quit
assert redis.ping
end
end
assert_equal commands[:s1], [%w[get-master-addr-by-name master1]]
assert_equal commands[:s2], [%w[get-master-addr-by-name master1], %w[get-master-addr-by-name master1]]
end
def test_sentinel_with_non_sentinel_options
sentinels = [{:host => "127.0.0.1", :port => 26381}]
commands = {
:s1 => [],
:m1 => []
}
sentinel = lambda do |port|
{
:auth => lambda do |pass|
commands[:s1] << ["auth", pass]
"-ERR unknown command 'auth'"
end,
:select => lambda do |db|
commands[:s1] << ["select", db]
"-ERR unknown command 'select'"
end,
:sentinel => lambda do |command, *args|
commands[:s1] << [command, *args]
["127.0.0.1", port.to_s]
end
}
end
master = {
:auth => lambda do |pass|
commands[:m1] << ["auth", pass]
"+OK"
end,
:role => lambda do
commands[:m1] << ["role"]
["master"]
end
}
RedisMock.start(master) do |master_port|
RedisMock.start(sentinel.call(master_port)) do |sen_port|
sentinels[0][:port] = sen_port
redis = Redis.new(:url => "redis://:foo@master1/15", :sentinels => sentinels, :role => :master)
assert redis.ping
end
end
assert_equal [%w[get-master-addr-by-name master1]], commands[:s1]
assert_equal [%w[auth foo], %w[role]], commands[:m1]
end
def test_sentinel_role_mismatch
sentinels = [{:host => "127.0.0.1", :port => 26381}]
sentinel = lambda do |port|
{
:sentinel => lambda do |command, *args|
["127.0.0.1", port.to_s]
end
}
end
master = {
:role => lambda do
["slave"]
end
}
ex = assert_raise(Redis::ConnectionError) do
RedisMock.start(master) do |master_port|
RedisMock.start(sentinel.call(master_port)) do |sen_port|
sentinels[0][:port] = sen_port
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master)
assert redis.ping
end
end
end
assert_match(/Instance role mismatch/, ex.message)
end
def test_sentinel_retries
sentinels = [{:host => "127.0.0.1", :port => 26381},
{:host => "127.0.0.1", :port => 26382}]
connections = []
handler = lambda do |id, port|
{
:sentinel => lambda do |command, *args|
connections << id
if connections.count(id) < 2
:close
else
["127.0.0.1", port.to_s]
end
end
}
end
master = {
:role => lambda do
["master"]
end
}
RedisMock.start(master) do |master_port|
RedisMock.start(handler.call(:s1, master_port)) do |s1_port|
RedisMock.start(handler.call(:s2, master_port)) do |s2_port|
sentinels[0][:port] = s1_port
sentinels[1][:port] = s2_port
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master, :reconnect_attempts => 1)
assert redis.ping
end
end
end
assert_equal [:s1, :s2, :s1], connections
connections.clear
ex = assert_raise(Redis::CannotConnectError) do
RedisMock.start(master) do |master_port|
RedisMock.start(handler.call(:s1, master_port)) do |s1_port|
RedisMock.start(handler.call(:s2, master_port)) do |s2_port|
redis = Redis.new(:url => "redis://master1", :sentinels => sentinels, :role => :master, :reconnect_attempts => 0)
assert redis.ping
end
end
end
end
assert_match(/No sentinels available/, ex.message)
end
end
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