# frozen_string_literal: true require "abstract_unit" require "openssl" class DigestTest < ActiveSupport::TestCase class InvalidDigest; end def test_with_default_hash_digest_class assert_equal ::Digest::MD5.hexdigest("hello friend"), ActiveSupport::Digest.hexdigest("hello friend") end def test_with_custom_hash_digest_class original_hash_digest_class = ActiveSupport::Digest.hash_digest_class ActiveSupport::Digest.hash_digest_class = ::Digest::SHA1 digest = ActiveSupport::Digest.hexdigest("hello friend") assert_equal 32, digest.length assert_equal ::Digest::SHA1.hexdigest("hello friend")[0...32], digest ensure ActiveSupport::Digest.hash_digest_class = original_hash_digest_class end def test_should_raise_argument_error_if_custom_digest_is_missing_hexdigest_method assert_raises(ArgumentError) { ActiveSupport::Digest.hash_digest_class = InvalidDigest } end end