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# frozen_string_literal: true
require_relative '../helper'
describe Dalli::Protocol::ServerConfigParser do
describe 'parse' do
let(:port) { rand(9999..99_999) }
let(:weight) { rand(1..5) }
describe 'when the string is not an memcached URI' do
describe 'tcp' do
describe 'when the hostname is a domain name' do
let(:hostname) { "a#{SecureRandom.hex(5)}.b#{SecureRandom.hex(3)}.#{%w[net com edu].sample}" }
it 'parses a hostname by itself' do
assert_equal Dalli::Protocol::ServerConfigParser.parse(hostname), [hostname, 11_211, :tcp, 1, {}]
end
it 'parses hostname with a port' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{port}"),
[hostname, port, :tcp, 1, {}]
end
it 'parses hostname with a port and weight' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{port}:#{weight}"),
[hostname, port, :tcp, weight, {}]
end
end
describe 'when the hostname is an IPv4 address' do
let(:hostname) { '203.0.113.28' }
it 'parses a hostname by itself' do
assert_equal Dalli::Protocol::ServerConfigParser.parse(hostname), [hostname, 11_211, :tcp, 1, {}]
end
it 'parses hostname with a port' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{port}"),
[hostname, port, :tcp, 1, {}]
end
it 'parses hostname with a port and weight' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{port}:#{weight}"),
[hostname, port, :tcp, weight, {}]
end
end
describe 'when the hostname is an IPv6 address' do
let(:hostname) { ['2001:db8:ffff:ffff:ffff:ffff:ffff:ffff', '2001:db8::'].sample }
it 'parses a hostname by itself' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("[#{hostname}]"),
[hostname, 11_211, :tcp, 1, {}]
end
it 'parses hostname with a port' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("[#{hostname}]:#{port}"),
[hostname, port, :tcp, 1, {}]
end
it 'parses hostname with a port and weight' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("[#{hostname}]:#{port}:#{weight}"),
[hostname, port, :tcp, weight, {}]
end
end
end
describe 'unix' do
let(:hostname) { "/tmp/#{SecureRandom.hex(5)}" }
it 'parses a socket by itself' do
assert_equal Dalli::Protocol::ServerConfigParser.parse(hostname), [hostname, nil, :unix, 1, {}]
end
it 'parses socket with a weight' do
assert_equal Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{weight}"),
[hostname, nil, :unix, weight, {}]
end
it 'produces an error with a port and weight' do
err = assert_raises Dalli::DalliError do
Dalli::Protocol::ServerConfigParser.parse("#{hostname}:#{port}:#{weight}")
end
assert_equal err.message, "Could not parse hostname #{hostname}:#{port}:#{weight}"
end
end
end
describe 'when the string is a memcached URI' do
let(:user) { SecureRandom.hex(5) }
let(:password) { SecureRandom.hex(5) }
let(:port) { rand(15_000..16_023) }
let(:hostname) { "a#{SecureRandom.hex(3)}.b#{SecureRandom.hex(3)}.com" }
describe 'when the URI is properly formed and includes all values' do
let(:uri) { "memcached://#{user}:#{password}@#{hostname}:#{port}" }
it 'parses correctly' do
assert_equal Dalli::Protocol::ServerConfigParser.parse(uri),
[hostname, port, :tcp, 1, { username: user, password: password }]
end
end
describe 'when the URI does not include a port' do
let(:uri) { "memcached://#{user}:#{password}@#{hostname}" }
it 'parses correctly' do
assert_equal Dalli::Protocol::ServerConfigParser.parse(uri),
[hostname, 11_211, :tcp, 1, { username: user, password: password }]
end
end
end
describe 'errors' do
describe 'when the string is empty' do
it 'produces an error' do
err = assert_raises Dalli::DalliError do
Dalli::Protocol::ServerConfigParser.parse('')
end
assert_equal('Could not parse hostname ', err.message)
end
end
describe 'when the string starts with a colon' do
it 'produces an error' do
err = assert_raises Dalli::DalliError do
Dalli::Protocol::ServerConfigParser.parse(':1:2')
end
assert_equal('Could not parse hostname :1:2', err.message)
end
end
describe 'when the string ends with a colon' do
it 'produces an error' do
err = assert_raises Dalli::DalliError do
Dalli::Protocol::ServerConfigParser.parse('abc.com:')
end
assert_equal('Could not parse hostname abc.com:', err.message)
end
end
end
end
end
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