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rails--rails/activesupport/test/key_generator_test.rb

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# frozen_string_literal: true
require_relative "abstract_unit"
begin
require "openssl"
OpenSSL::PKCS5
rescue LoadError, NameError
$stderr.puts "Skipping KeyGenerator test: broken OpenSSL install"
else
class KeyGeneratorTest < ActiveSupport::TestCase
def setup
@secret = SecureRandom.hex(64)
@generator = ActiveSupport::KeyGenerator.new(@secret, iterations: 2)
end
test "Generating a key of the default length" do
derived_key = @generator.generate_key("some_salt")
assert_kind_of String, derived_key
assert_equal 64, derived_key.length, "Should have generated a key of the default size"
end
test "Generating a key of an alternative length" do
derived_key = @generator.generate_key("some_salt", 32)
assert_kind_of String, derived_key
assert_equal 32, derived_key.length, "Should have generated a key of the right size"
end
test "Expected results" do
# For any given set of inputs, this method must continue to return
# the same output: if it changes, any existing values relying on a
# key would break.
expected = "b129376f68f1ecae788d7433310249d65ceec090ecacd4c872a3a9e9ec78e055739be5cc6956345d5ae38e7e1daa66f1de587dc8da2bf9e8b965af4b3918a122"
assert_equal expected, ActiveSupport::KeyGenerator.new("0" * 64).generate_key("some_salt").unpack1("H*")
expected = "b129376f68f1ecae788d7433310249d65ceec090ecacd4c872a3a9e9ec78e055"
assert_equal expected, ActiveSupport::KeyGenerator.new("0" * 64).generate_key("some_salt", 32).unpack1("H*")
expected = "cbea7f7f47df705967dc508f4e446fd99e7797b1d70011c6899cd39bbe62907b8508337d678505a7dc8184e037f1003ba3d19fc5d829454668e91d2518692eae"
assert_equal expected, ActiveSupport::KeyGenerator.new("0" * 64, iterations: 2).generate_key("some_salt").unpack1("H*")
end
end
class CachingKeyGeneratorTest < ActiveSupport::TestCase
def setup
@secret = SecureRandom.hex(64)
@generator = ActiveSupport::KeyGenerator.new(@secret, iterations: 2)
@caching_generator = ActiveSupport::CachingKeyGenerator.new(@generator)
end
test "Generating a cached key for same salt and key size" do
derived_key = @caching_generator.generate_key("some_salt", 32)
cached_key = @caching_generator.generate_key("some_salt", 32)
assert_equal derived_key, cached_key
assert_equal derived_key.object_id, cached_key.object_id
end
test "Does not cache key for different salt" do
derived_key = @caching_generator.generate_key("some_salt", 32)
different_salt_key = @caching_generator.generate_key("other_salt", 32)
assert_not_equal derived_key, different_salt_key
end
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test "Does not cache key for different length" do
derived_key = @caching_generator.generate_key("some_salt", 32)
different_length_key = @caching_generator.generate_key("some_salt", 64)
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assert_not_equal derived_key, different_length_key
end
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end
end