rails--rails/activejob/test/cases/argument_serialization_test.rb

# frozen_string_literal: true

require "helper"
require "active_job/arguments"
require "models/person"
require "active_support/core_ext/hash/indifferent_access"
require "jobs/kwargs_job"

class ArgumentSerializationTest < ActiveSupport::TestCase
  setup do
    @person = Person.find("5")
  end

  [ nil, 1, 1.0, 1_000_000_000_000_000_000_000,
    "a", true, false, BigDecimal(5),
    :a, 1.day, Date.new(2001, 2, 3), Time.new(2002, 10, 31, 2, 2, 2, "+02:00"),
    DateTime.new(2001, 2, 3, 4, 5, 6, "+03:00"),
    ActiveSupport::TimeWithZone.new(Time.utc(1999, 12, 31, 23, 59, 59), ActiveSupport::TimeZone["UTC"]),
    [ 1, "a" ],
    { "a" => 1 }
  ].each do |arg|
    test "serializes #{arg.class} - #{arg} verbatim" do
      assert_arguments_unchanged arg
    end
  end

  [ Object.new, self, Person.find("5").to_gid ].each do |arg|
    test "does not serialize #{arg.class}" do
      assert_raises ActiveJob::SerializationError do
        ActiveJob::Arguments.serialize [ arg ]
      end

      assert_raises ActiveJob::DeserializationError do
        ActiveJob::Arguments.deserialize [ arg ]
      end
    end
  end

  test "should convert records to Global IDs" do
    assert_arguments_roundtrip [@person]
  end

  test "should dive deep into arrays and hashes" do
    assert_arguments_roundtrip [3, [@person]]
    assert_arguments_roundtrip [{ "a" => @person }]
  end

  test "should maintain string and symbol keys" do
    assert_arguments_roundtrip([a: 1, "b" => 2])
  end

  test "serialize a hash" do
    symbol_key = { a: 1 }
    string_key = { "a" => 1 }
    indifferent_access = { a: 1 }.with_indifferent_access

    assert_equal(
      { "a" => 1, "_aj_symbol_keys" => ["a"] },
      ActiveJob::Arguments.serialize([symbol_key]).first
    )
    assert_equal(
      { "a" => 1, "_aj_symbol_keys" => [] },
      ActiveJob::Arguments.serialize([string_key]).first
    )
    assert_equal(
      { "a" => 1, "_aj_hash_with_indifferent_access" => true },
      ActiveJob::Arguments.serialize([indifferent_access]).first
    )
  end

  test "deserialize a hash" do
    symbol_key = { "a" => 1, "_aj_symbol_keys" => ["a"] }
    string_key = { "a" => 1, "_aj_symbol_keys" => [] }
    another_string_key = { "a" => 1 }
    indifferent_access = { "a" => 1, "_aj_hash_with_indifferent_access" => true }
    indifferent_access_symbol_key = symbol_key.with_indifferent_access

    assert_equal(
      { a: 1 },
      ActiveJob::Arguments.deserialize([symbol_key]).first
    )
    assert_equal(
      { "a" => 1 },
      ActiveJob::Arguments.deserialize([string_key]).first
    )
    assert_equal(
      { "a" => 1 },
      ActiveJob::Arguments.deserialize([another_string_key]).first
    )
    assert_equal(
      { "a" => 1 },
      ActiveJob::Arguments.deserialize([indifferent_access]).first
    )
    assert_equal(
      { a: 1 },
      ActiveJob::Arguments.deserialize([indifferent_access_symbol_key]).first
    )
  end

  test "should maintain hash with indifferent access" do
    symbol_key = { a: 1 }
    string_key = { "a" => 1 }
    indifferent_access = { a: 1 }.with_indifferent_access

    assert_not_instance_of ActiveSupport::HashWithIndifferentAccess, perform_round_trip([symbol_key]).first
    assert_not_instance_of ActiveSupport::HashWithIndifferentAccess, perform_round_trip([string_key]).first
    assert_instance_of ActiveSupport::HashWithIndifferentAccess, perform_round_trip([indifferent_access]).first
  end

  test "should maintain time with zone" do
    Time.use_zone "Alaska" do
      time_with_zone = Time.new(2002, 10, 31, 2, 2, 2).in_time_zone
      assert_instance_of ActiveSupport::TimeWithZone, perform_round_trip([time_with_zone]).first
      assert_arguments_unchanged time_with_zone
    end
  end

  test "should disallow non-string/symbol hash keys" do
    assert_raises ActiveJob::SerializationError do
      ActiveJob::Arguments.serialize [ { 1 => 2 } ]
    end

    assert_raises ActiveJob::SerializationError do
      ActiveJob::Arguments.serialize [ { a: [{ 2 => 3 }] } ]
    end
  end

  test "should not allow reserved hash keys" do
    ["_aj_globalid", :_aj_globalid,
     "_aj_symbol_keys", :_aj_symbol_keys,
     "_aj_hash_with_indifferent_access", :_aj_hash_with_indifferent_access,
     "_aj_serialized", :_aj_serialized].each do |key|
      assert_raises ActiveJob::SerializationError do
        ActiveJob::Arguments.serialize [key => 1]
      end
    end
  end

  test "should not allow non-primitive objects" do
    assert_raises ActiveJob::SerializationError do
      ActiveJob::Arguments.serialize [Object.new]
    end

    assert_raises ActiveJob::SerializationError do
      ActiveJob::Arguments.serialize [1, [Object.new]]
    end
  end

  test "allows for keyword arguments" do
    KwargsJob.perform_later(argument: 2)

    assert_equal "Job with argument: 2", JobBuffer.last_value
  end

  test "raises a friendly SerializationError for records without ids" do
    err = assert_raises ActiveJob::SerializationError do
      ActiveJob::Arguments.serialize [Person.new(nil)]
    end
    assert_match "Unable to serialize Person without an id.", err.message
  end

  private
    def assert_arguments_unchanged(*args)
      assert_arguments_roundtrip args
    end

    def assert_arguments_roundtrip(args)
      assert_equal args, perform_round_trip(args)
    end

    def perform_round_trip(args)
      ActiveJob::Arguments.deserialize(ActiveJob::Arguments.serialize(args))
    end
end