14 files changed, 1173 insertions, 0 deletions
diff --git a/activejob/test/cases/adapter_test.rb b/activejob/test/cases/adapter_test.rb
new file mode 100644
index 0000000000..6d75ae9a7c
--- /dev/null
+++ b/activejob/test/cases/adapter_test.rb
@@ -0,0 +1,7 @@
+require 'helper'
+
+class AdapterTest < ActiveSupport::TestCase
+  test "should load #{ENV['AJ_ADAPTER']} adapter" do
+    assert_equal "active_job/queue_adapters/#{ENV['AJ_ADAPTER']}_adapter".classify, ActiveJob::Base.queue_adapter.class.name
+  end
+end
diff --git a/activejob/test/cases/argument_serialization_test.rb b/activejob/test/cases/argument_serialization_test.rb
new file mode 100644
index 0000000000..933972a52b
--- /dev/null
+++ b/activejob/test/cases/argument_serialization_test.rb
@@ -0,0 +1,110 @@
+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,
+    [ 1, 'a' ],
+    { 'a' => 1 }
+  ].each do |arg|
+    test "serializes #{arg.class} verbatim" do
+      assert_arguments_unchanged arg
+    end
+  end
+
+  [ :a, 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 '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 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
+
+    assert_raises ActiveJob::SerializationError do
+      ActiveJob::Arguments.serialize [ '_aj_globalid' => 1 ]
+    end
+
+    assert_raises ActiveJob::SerializationError do
+      ActiveJob::Arguments.serialize [ :_aj_globalid => 1 ]
+    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
diff --git a/activejob/test/cases/async_job_test.rb b/activejob/test/cases/async_job_test.rb
new file mode 100644
index 0000000000..2642cfc608
--- /dev/null
+++ b/activejob/test/cases/async_job_test.rb
@@ -0,0 +1,42 @@
+require 'helper'
+require 'jobs/hello_job'
+require 'jobs/queue_as_job'
+
+class AsyncJobTest < ActiveSupport::TestCase
+  def using_async_adapter?
+    ActiveJob::Base.queue_adapter.is_a? ActiveJob::QueueAdapters::AsyncAdapter
+  end
+
+  setup do
+    ActiveJob::AsyncJob.perform_asynchronously!
+  end
+
+  teardown do
+    ActiveJob::AsyncJob::QUEUES.clear
+    ActiveJob::AsyncJob.perform_immediately!
+  end
+
+  test "#create_thread_pool returns a thread_pool" do
+    thread_pool = ActiveJob::AsyncJob.create_thread_pool
+    assert thread_pool.is_a? Concurrent::ExecutorService
+    assert_not thread_pool.is_a? Concurrent::ImmediateExecutor
+  end
+
+  test "#create_thread_pool returns an ImmediateExecutor after #perform_immediately! is called" do
+    ActiveJob::AsyncJob.perform_immediately!
+    thread_pool = ActiveJob::AsyncJob.create_thread_pool
+    assert thread_pool.is_a? Concurrent::ImmediateExecutor
+  end
+
+  test "enqueuing without specifying a queue uses the default queue" do
+    skip unless using_async_adapter?
+    HelloJob.perform_later
+    assert ActiveJob::AsyncJob::QUEUES.key? 'default'
+  end
+
+  test "enqueuing to a queue that does not exist creates the queue" do
+    skip unless using_async_adapter?
+    QueueAsJob.perform_later
+    assert ActiveJob::AsyncJob::QUEUES.key? QueueAsJob::MY_QUEUE.to_s
+  end
+end
diff --git a/activejob/test/cases/callbacks_test.rb b/activejob/test/cases/callbacks_test.rb
new file mode 100644
index 0000000000..9af2380767
--- /dev/null
+++ b/activejob/test/cases/callbacks_test.rb
@@ -0,0 +1,23 @@
+require 'helper'
+require 'jobs/callback_job'
+
+require 'active_support/core_ext/object/inclusion'
+
+class CallbacksTest < ActiveSupport::TestCase
+  test 'perform callbacks' do
+    performed_callback_job = CallbackJob.new("A-JOB-ID")
+    performed_callback_job.perform_now
+    assert "CallbackJob ran before_perform".in? performed_callback_job.history
+    assert "CallbackJob ran after_perform".in? performed_callback_job.history
+    assert "CallbackJob ran around_perform_start".in? performed_callback_job.history
+    assert "CallbackJob ran around_perform_stop".in? performed_callback_job.history
+  end
+
+  test 'enqueue callbacks' do
+    enqueued_callback_job = CallbackJob.perform_later
+    assert "CallbackJob ran before_enqueue".in? enqueued_callback_job.history
+    assert "CallbackJob ran after_enqueue".in? enqueued_callback_job.history
+    assert "CallbackJob ran around_enqueue_start".in? enqueued_callback_job.history
+    assert "CallbackJob ran around_enqueue_stop".in? enqueued_callback_job.history
+  end
+end
diff --git a/activejob/test/cases/job_serialization_test.rb b/activejob/test/cases/job_serialization_test.rb
new file mode 100644
index 0000000000..229517774e
--- /dev/null
+++ b/activejob/test/cases/job_serialization_test.rb
@@ -0,0 +1,32 @@
+require 'helper'
+require 'jobs/gid_job'
+require 'jobs/hello_job'
+require 'models/person'
+
+class JobSerializationTest < ActiveSupport::TestCase
+  setup do
+    JobBuffer.clear
+    @person = Person.find(5)
+  end
+
+  test 'serialize job with gid' do
+    GidJob.perform_later @person
+    assert_equal "Person with ID: 5", JobBuffer.last_value
+  end
+
+  test 'serialize includes current locale' do
+    assert_equal :en, HelloJob.new.serialize['locale']
+  end
+
+  test 'deserialize sets locale' do
+    job = HelloJob.new
+    job.deserialize 'locale' => :es
+    assert_equal :es, job.locale
+  end
+
+  test 'deserialize sets default locale' do
+    job = HelloJob.new
+    job.deserialize({})
+    assert_equal :en, job.locale
+  end
+end
diff --git a/activejob/test/cases/logging_test.rb b/activejob/test/cases/logging_test.rb
new file mode 100644
index 0000000000..820e9112de
--- /dev/null
+++ b/activejob/test/cases/logging_test.rb
@@ -0,0 +1,122 @@
+require 'helper'
+require "active_support/log_subscriber/test_helper"
+require 'active_support/core_ext/numeric/time'
+require 'jobs/hello_job'
+require 'jobs/logging_job'
+require 'jobs/nested_job'
+require 'models/person'
+
+class LoggingTest < ActiveSupport::TestCase
+  include ActiveSupport::LogSubscriber::TestHelper
+  include ActiveSupport::Logger::Severity
+
+  class TestLogger < ActiveSupport::Logger
+    def initialize
+      @file = StringIO.new
+      super(@file)
+    end
+
+    def messages
+      @file.rewind
+      @file.read
+    end
+  end
+
+  def setup
+    super
+    JobBuffer.clear
+    @old_logger = ActiveJob::Base.logger
+    @logger = ActiveSupport::TaggedLogging.new(TestLogger.new)
+    set_logger @logger
+    ActiveJob::Logging::LogSubscriber.attach_to :active_job
+  end
+
+  def teardown
+    super
+    ActiveJob::Logging::LogSubscriber.log_subscribers.pop
+    set_logger @old_logger
+  end
+
+  def set_logger(logger)
+    ActiveJob::Base.logger = logger
+  end
+
+
+  def test_uses_active_job_as_tag
+    HelloJob.perform_later "Cristian"
+    assert_match(/\[ActiveJob\]/, @logger.messages)
+  end
+
+  def test_uses_job_name_as_tag
+    LoggingJob.perform_later "Dummy"
+    assert_match(/\[LoggingJob\]/, @logger.messages)
+  end
+
+  def test_uses_job_id_as_tag
+    LoggingJob.perform_later "Dummy"
+    assert_match(/\[LOGGING-JOB-ID\]/, @logger.messages)
+  end
+
+  def test_logs_correct_queue_name
+    original_queue_name = LoggingJob.queue_name
+    LoggingJob.queue_as :php_jobs
+    LoggingJob.perform_later("Dummy")
+    assert_match(/to .*?\(php_jobs\).*/, @logger.messages)
+  ensure
+    LoggingJob.queue_name = original_queue_name
+  end
+
+  def test_globalid_parameter_logging
+    person = Person.new(123)
+    LoggingJob.perform_later person
+    assert_match(%r{Enqueued.*gid://aj/Person/123}, @logger.messages)
+    assert_match(%r{Dummy, here is it: #<Person:.*>}, @logger.messages)
+    assert_match(%r{Performing.*gid://aj/Person/123}, @logger.messages)
+  end
+
+  def test_globalid_nested_parameter_logging
+    person = Person.new(123)
+    LoggingJob.perform_later(person: person)
+    assert_match(%r{Enqueued.*gid://aj/Person/123}, @logger.messages)
+    assert_match(%r{Dummy, here is it: .*#<Person:.*>}, @logger.messages)
+    assert_match(%r{Performing.*gid://aj/Person/123}, @logger.messages)
+  end
+
+  def test_enqueue_job_logging
+    HelloJob.perform_later "Cristian"
+    assert_match(/Enqueued HelloJob \(Job ID: .*?\) to .*?:.*Cristian/, @logger.messages)
+  end
+
+  def test_perform_job_logging
+    LoggingJob.perform_later "Dummy"
+    assert_match(/Performing LoggingJob from .*? with arguments:.*Dummy/, @logger.messages)
+    assert_match(/Dummy, here is it: Dummy/, @logger.messages)
+    assert_match(/Performed LoggingJob from .*? in .*ms/, @logger.messages)
+  end
+
+  def test_perform_nested_jobs_logging
+    NestedJob.perform_later
+    assert_match(/\[LoggingJob\] \[.*?\]/, @logger.messages)
+    assert_match(/\[ActiveJob\] Enqueued NestedJob \(Job ID: .*\) to/, @logger.messages)
+    assert_match(/\[ActiveJob\] \[NestedJob\] \[NESTED-JOB-ID\] Performing NestedJob from/, @logger.messages)
+    assert_match(/\[ActiveJob\] \[NestedJob\] \[NESTED-JOB-ID\] Enqueued LoggingJob \(Job ID: .*?\) to .* with arguments: "NestedJob"/, @logger.messages)
+    assert_match(/\[ActiveJob\].*\[LoggingJob\] \[LOGGING-JOB-ID\] Performing LoggingJob from .* with arguments: "NestedJob"/, @logger.messages)
+    assert_match(/\[ActiveJob\].*\[LoggingJob\] \[LOGGING-JOB-ID\] Dummy, here is it: NestedJob/, @logger.messages)
+    assert_match(/\[ActiveJob\].*\[LoggingJob\] \[LOGGING-JOB-ID\] Performed LoggingJob from .* in/, @logger.messages)
+    assert_match(/\[ActiveJob\] \[NestedJob\] \[NESTED-JOB-ID\] Performed NestedJob from .* in/, @logger.messages)
+  end
+
+  def test_enqueue_at_job_logging
+    HelloJob.set(wait_until: 24.hours.from_now).perform_later "Cristian"
+    assert_match(/Enqueued HelloJob \(Job ID: .*\) to .*? at.*Cristian/, @logger.messages)
+  rescue NotImplementedError
+    skip
+  end
+
+  def test_enqueue_in_job_logging
+    HelloJob.set(wait: 2.seconds).perform_later "Cristian"
+    assert_match(/Enqueued HelloJob \(Job ID: .*\) to .*? at.*Cristian/, @logger.messages)
+  rescue NotImplementedError
+    skip
+  end
+end
diff --git a/activejob/test/cases/queue_adapter_test.rb b/activejob/test/cases/queue_adapter_test.rb
new file mode 100644
index 0000000000..fb3fdc392f
--- /dev/null
+++ b/activejob/test/cases/queue_adapter_test.rb
@@ -0,0 +1,56 @@
+require 'helper'
+
+module ActiveJob
+  module QueueAdapters
+    class StubOneAdapter
+      def enqueue(*); end
+      def enqueue_at(*); end
+    end
+
+    class StubTwoAdapter
+      def enqueue(*); end
+      def enqueue_at(*); end
+    end
+  end
+end
+
+class QueueAdapterTest < ActiveJob::TestCase
+  test 'should forbid nonsense arguments' do
+    assert_raises(ArgumentError) { ActiveJob::Base.queue_adapter = Mutex }
+    assert_raises(ArgumentError) { ActiveJob::Base.queue_adapter = Mutex.new }
+  end
+
+  test 'should warn on passing an adapter class' do
+    klass = Class.new do
+      def self.name
+        'fake'
+      end
+
+      def enqueue(*); end
+      def enqueue_at(*); end
+    end
+
+    assert_deprecated { ActiveJob::Base.queue_adapter = klass }
+  end
+
+  test 'should allow overriding the queue_adapter at the child class level without affecting the parent or its sibling' do
+    base_queue_adapter = ActiveJob::Base.queue_adapter
+
+    child_job_one = Class.new(ActiveJob::Base)
+    child_job_one.queue_adapter = :stub_one
+
+    assert_not_equal ActiveJob::Base.queue_adapter, child_job_one.queue_adapter
+    assert_kind_of ActiveJob::QueueAdapters::StubOneAdapter, child_job_one.queue_adapter
+
+    child_job_two = Class.new(ActiveJob::Base)
+    child_job_two.queue_adapter = :stub_two
+
+    assert_kind_of ActiveJob::QueueAdapters::StubTwoAdapter, child_job_two.queue_adapter
+    assert_kind_of ActiveJob::QueueAdapters::StubOneAdapter, child_job_one.queue_adapter, "child_job_one's queue adapter should remain unchanged"
+    assert_equal base_queue_adapter, ActiveJob::Base.queue_adapter, "ActiveJob::Base's queue adapter should remain unchanged"
+
+    child_job_three = Class.new(ActiveJob::Base)
+
+    assert_not_nil child_job_three.queue_adapter
+  end
+end
diff --git a/activejob/test/cases/queue_naming_test.rb b/activejob/test/cases/queue_naming_test.rb
new file mode 100644
index 0000000000..898016a704
--- /dev/null
+++ b/activejob/test/cases/queue_naming_test.rb
@@ -0,0 +1,102 @@
+require 'helper'
+require 'jobs/hello_job'
+require 'jobs/logging_job'
+require 'jobs/nested_job'
+
+class QueueNamingTest < ActiveSupport::TestCase
+  test 'name derived from base' do
+    assert_equal "default", HelloJob.queue_name
+  end
+
+  test 'uses given queue name job' do
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      HelloJob.queue_as :greetings
+      assert_equal "greetings", HelloJob.new.queue_name
+    ensure
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'allows a blank queue name' do
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      HelloJob.queue_as ""
+      assert_equal "", HelloJob.new.queue_name
+    ensure
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'does not use a nil queue name' do
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      HelloJob.queue_as nil
+      assert_equal "default", HelloJob.new.queue_name
+    ensure
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'evals block given to queue_as to determine queue' do
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      HelloJob.queue_as { :another }
+      assert_equal "another", HelloJob.new.queue_name
+    ensure
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'can use arguments to determine queue_name in queue_as block' do
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      HelloJob.queue_as { self.arguments.first=='1' ? :one : :two }
+      assert_equal "one", HelloJob.new('1').queue_name
+      assert_equal "two", HelloJob.new('3').queue_name
+    ensure
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'queue_name_prefix prepended to the queue name with default delimiter' do
+    original_queue_name_prefix = ActiveJob::Base.queue_name_prefix
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      ActiveJob::Base.queue_name_prefix = 'aj'
+      HelloJob.queue_as :low
+      assert_equal 'aj_low', HelloJob.queue_name
+    ensure
+      ActiveJob::Base.queue_name_prefix = original_queue_name_prefix
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'queue_name_prefix prepended to the queue name with custom delimiter' do
+    original_queue_name_prefix = ActiveJob::Base.queue_name_prefix
+    original_queue_name_delimiter = ActiveJob::Base.queue_name_delimiter
+    original_queue_name = HelloJob.queue_name
+
+    begin
+      ActiveJob::Base.queue_name_delimiter = '.'
+      ActiveJob::Base.queue_name_prefix = 'aj'
+      HelloJob.queue_as :low
+      assert_equal 'aj.low', HelloJob.queue_name
+    ensure
+      ActiveJob::Base.queue_name_prefix = original_queue_name_prefix
+      ActiveJob::Base.queue_name_delimiter = original_queue_name_delimiter
+      HelloJob.queue_name = original_queue_name
+    end
+  end
+
+  test 'uses queue passed to #set' do
+    job = HelloJob.set(queue: :some_queue).perform_later
+    assert_equal "some_queue", job.queue_name
+  end
+end
diff --git a/activejob/test/cases/queue_priority_test.rb b/activejob/test/cases/queue_priority_test.rb
new file mode 100644
index 0000000000..ca17b51dad
--- /dev/null
+++ b/activejob/test/cases/queue_priority_test.rb
@@ -0,0 +1,47 @@
+require 'helper'
+require 'jobs/hello_job'
+
+class QueuePriorityTest < ActiveSupport::TestCase
+  test 'priority unset by default' do
+    assert_equal nil, HelloJob.priority
+  end
+
+  test 'uses given priority' do
+    original_priority = HelloJob.priority
+
+    begin
+      HelloJob.queue_with_priority 90
+      assert_equal 90, HelloJob.new.priority
+    ensure
+      HelloJob.priority = original_priority
+    end
+  end
+
+  test 'evals block given to priority to determine priority' do
+    original_priority = HelloJob.priority
+
+    begin
+      HelloJob.queue_with_priority { 25 }
+      assert_equal 25, HelloJob.new.priority
+    ensure
+      HelloJob.priority = original_priority
+    end
+  end
+
+  test 'can use arguments to determine priority in priority block' do
+    original_priority = HelloJob.priority
+
+    begin
+      HelloJob.queue_with_priority { self.arguments.first=='1' ? 99 : 11 }
+      assert_equal 99, HelloJob.new('1').priority
+      assert_equal 11, HelloJob.new('3').priority
+    ensure
+      HelloJob.priority = original_priority
+    end
+  end
+
+  test 'uses priority passed to #set' do
+    job = HelloJob.set(priority: 123).perform_later
+    assert_equal 123, job.priority
+  end
+end
diff --git a/activejob/test/cases/queuing_test.rb b/activejob/test/cases/queuing_test.rb
new file mode 100644
index 0000000000..0eeabbf693
--- /dev/null
+++ b/activejob/test/cases/queuing_test.rb
@@ -0,0 +1,44 @@
+require 'helper'
+require 'jobs/hello_job'
+require 'active_support/core_ext/numeric/time'
+
+
+class QueuingTest < ActiveSupport::TestCase
+  setup do
+    JobBuffer.clear
+  end
+
+  test 'run queued job' do
+    HelloJob.perform_later
+    assert_equal "David says hello", JobBuffer.last_value
+  end
+
+  test 'run queued job with arguments' do
+    HelloJob.perform_later "Jamie"
+    assert_equal "Jamie says hello", JobBuffer.last_value
+  end
+
+  test 'run queued job later' do
+    begin
+      result = HelloJob.set(wait_until: 1.second.ago).perform_later "Jamie"
+      assert result
+    rescue NotImplementedError
+      skip
+    end
+  end
+
+  test 'job returned by enqueue has the arguments available' do
+    job = HelloJob.perform_later "Jamie"
+    assert_equal [ "Jamie" ], job.arguments
+  end
+
+
+  test 'job returned by perform_at has the timestamp available' do
+    begin
+      job = HelloJob.set(wait_until: Time.utc(2014, 1, 1)).perform_later
+      assert_equal Time.utc(2014, 1, 1).to_f, job.scheduled_at
+    rescue NotImplementedError
+      skip
+    end
+  end
+end
diff --git a/activejob/test/cases/rescue_test.rb b/activejob/test/cases/rescue_test.rb
new file mode 100644
index 0000000000..58c9ca8992
--- /dev/null
+++ b/activejob/test/cases/rescue_test.rb
@@ -0,0 +1,34 @@
+require 'helper'
+require 'jobs/rescue_job'
+require 'models/person'
+
+class RescueTest < ActiveSupport::TestCase
+  setup do
+    JobBuffer.clear
+  end
+
+  test 'rescue perform exception with retry' do
+    job = RescueJob.new("david")
+    job.perform_now
+    assert_equal [ "rescued from ArgumentError", "performed beautifully" ], JobBuffer.values
+  end
+
+  test 'let through unhandled perform exception' do
+    job = RescueJob.new("other")
+    assert_raises(RescueJob::OtherError) do
+      job.perform_now
+    end
+  end
+
+  test 'rescue from deserialization errors' do
+    RescueJob.perform_later Person.new(404)
+    assert_includes JobBuffer.values, 'rescued from DeserializationError'
+    assert_includes JobBuffer.values, 'DeserializationError original exception was Person::RecordNotFound'
+    assert_not_includes JobBuffer.values, 'performed beautifully'
+  end
+
+  test "should not wrap DeserializationError in DeserializationError" do
+    RescueJob.perform_later [Person.new(404)]
+    assert_includes JobBuffer.values, 'DeserializationError original exception was Person::RecordNotFound'
+  end
+end
diff --git a/activejob/test/cases/test_case_test.rb b/activejob/test/cases/test_case_test.rb
new file mode 100644
index 0000000000..616454a4b6
--- /dev/null
+++ b/activejob/test/cases/test_case_test.rb
@@ -0,0 +1,23 @@
+require 'helper'
+require 'jobs/hello_job'
+require 'jobs/logging_job'
+require 'jobs/nested_job'
+
+class ActiveJobTestCaseTest < ActiveJob::TestCase
+  # this tests that this job class doesn't get its adapter set.
+  # that's the correct behavior since we don't want to break
+  # the `class_attribute` inheritance
+  class TestClassAttributeInheritanceJob < ActiveJob::Base
+    def self.queue_adapter=(*)
+      raise 'Attempting to break `class_attribute` inheritance, bad!'
+    end
+  end
+
+  def test_include_helper
+    assert_includes self.class.ancestors, ActiveJob::TestHelper
+  end
+
+  def test_set_test_adapter
+    assert_kind_of ActiveJob::QueueAdapters::TestAdapter, self.queue_adapter
+  end
+end
diff --git a/activejob/test/cases/test_helper_test.rb b/activejob/test/cases/test_helper_test.rb
new file mode 100644
index 0000000000..f7ee763e8a
--- /dev/null
+++ b/activejob/test/cases/test_helper_test.rb
@@ -0,0 +1,511 @@
+require 'helper'
+require 'active_support/core_ext/time'
+require 'active_support/core_ext/date'
+require 'jobs/hello_job'
+require 'jobs/logging_job'
+require 'jobs/nested_job'
+require 'jobs/rescue_job'
+require 'models/person'
+
+class EnqueuedJobsTest < ActiveJob::TestCase
+  def test_assert_enqueued_jobs
+    assert_nothing_raised do
+      assert_enqueued_jobs 1 do
+        HelloJob.perform_later('david')
+      end
+    end
+  end
+
+  def test_repeated_enqueued_jobs_calls
+    assert_nothing_raised do
+      assert_enqueued_jobs 1 do
+        HelloJob.perform_later('abdelkader')
+      end
+    end
+
+    assert_nothing_raised do
+      assert_enqueued_jobs 2 do
+        HelloJob.perform_later('sean')
+        HelloJob.perform_later('yves')
+      end
+    end
+  end
+
+  def test_assert_enqueued_jobs_message
+    HelloJob.perform_later('sean')
+    e = assert_raises Minitest::Assertion do
+      assert_enqueued_jobs 2 do
+        HelloJob.perform_later('sean')
+      end
+    end
+    assert_match "Expected: 2", e.message
+    assert_match "Actual: 1", e.message
+  end
+
+  def test_assert_enqueued_jobs_with_no_block
+    assert_nothing_raised do
+      HelloJob.perform_later('rafael')
+      assert_enqueued_jobs 1
+    end
+
+    assert_nothing_raised do
+      HelloJob.perform_later('aaron')
+      HelloJob.perform_later('matthew')
+      assert_enqueued_jobs 3
+    end
+  end
+
+  def test_assert_no_enqueued_jobs_with_no_block
+    assert_nothing_raised do
+      assert_no_enqueued_jobs
+    end
+  end
+
+  def test_assert_no_enqueued_jobs
+    assert_nothing_raised do
+      assert_no_enqueued_jobs do
+        HelloJob.perform_now
+      end
+    end
+  end
+
+  def test_assert_enqueued_jobs_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 2 do
+        HelloJob.perform_later('xavier')
+      end
+    end
+
+    assert_match(/2 .* but 1/, error.message)
+  end
+
+  def test_assert_enqueued_jobs_too_many_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 1 do
+        HelloJob.perform_later('cristian')
+        HelloJob.perform_later('guillermo')
+      end
+    end
+
+    assert_match(/1 .* but 2/, error.message)
+  end
+
+  def test_assert_no_enqueued_jobs_failure
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_no_enqueued_jobs do
+        HelloJob.perform_later('jeremy')
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_enqueued_jobs_with_only_option
+    assert_nothing_raised do
+      assert_enqueued_jobs 1, only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_enqueued_jobs_with_only_option_and_none_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 1, only: HelloJob do
+        LoggingJob.perform_later
+      end
+    end
+
+    assert_match(/1 .* but 0/, error.message)
+  end
+
+  def test_assert_enqueued_jobs_with_only_option_and_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 5, only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        4.times { LoggingJob.perform_later }
+      end
+    end
+
+    assert_match(/5 .* but 1/, error.message)
+  end
+
+  def test_assert_enqueued_jobs_with_only_option_and_too_many_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 1, only: HelloJob do
+        2.times { HelloJob.perform_later('jeremy') }
+      end
+    end
+
+    assert_match(/1 .* but 2/, error.message)
+  end
+
+  def test_assert_enqueued_jobs_with_only_option_as_array
+    assert_nothing_raised do
+      assert_enqueued_jobs 2, only: [HelloJob, LoggingJob] do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later('stewie')
+        RescueJob.perform_later('david')
+      end
+    end
+  end
+
+  def test_assert_no_enqueued_jobs_with_only_option
+    assert_nothing_raised do
+      assert_no_enqueued_jobs only: HelloJob do
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_no_enqueued_jobs_with_only_option_failure
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_no_enqueued_jobs only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_no_enqueued_jobs_with_only_option_as_array
+    assert_nothing_raised do
+      assert_no_enqueued_jobs only: [HelloJob, RescueJob] do
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_enqueued_job
+    assert_enqueued_with(job: LoggingJob, queue: 'default') do
+      LoggingJob.set(wait_until: Date.tomorrow.noon).perform_later
+    end
+  end
+
+  def test_assert_enqueued_job_returns
+    job = assert_enqueued_with(job: LoggingJob) do
+      LoggingJob.set(wait_until: 5.minutes.from_now).perform_later(1, 2, 3)
+    end
+
+    assert_instance_of LoggingJob, job
+    assert_in_delta 5.minutes.from_now, job.scheduled_at, 1
+    assert_equal 'default', job.queue_name
+    assert_equal [1, 2, 3], job.arguments
+  end
+
+  def test_assert_enqueued_job_failure
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_with(job: LoggingJob, queue: 'default') do
+        NestedJob.perform_later
+      end
+    end
+
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_with(job: NestedJob, queue: 'low') do
+        NestedJob.perform_later
+      end
+    end
+
+    assert_equal 'No enqueued job found with {:job=>NestedJob, :queue=>"low"}', error.message
+  end
+
+  def test_assert_enqueued_job_args
+    assert_raise ArgumentError do
+      assert_enqueued_with(class: LoggingJob) do
+        NestedJob.set(wait_until: Date.tomorrow.noon).perform_later
+      end
+    end
+  end
+
+  def test_assert_enqueued_job_with_at_option
+    assert_enqueued_with(job: HelloJob, at: Date.tomorrow.noon) do
+      HelloJob.set(wait_until: Date.tomorrow.noon).perform_later
+    end
+  end
+
+  def test_assert_enqueued_job_with_global_id_args
+    ricardo = Person.new(9)
+    assert_enqueued_with(job: HelloJob, args: [ricardo]) do
+      HelloJob.perform_later(ricardo)
+    end
+  end
+
+  def test_assert_enqueued_job_failure_with_global_id_args
+    ricardo = Person.new(9)
+    wilma = Person.new(11)
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_with(job: HelloJob, args: [wilma]) do
+        HelloJob.perform_later(ricardo)
+      end
+    end
+
+    assert_equal "No enqueued job found with {:job=>HelloJob, :args=>[#{wilma.inspect}]}", error.message
+  end
+
+  def test_assert_enqueued_job_does_not_change_jobs_count
+    HelloJob.perform_later
+    assert_enqueued_with(job: HelloJob) do
+      HelloJob.perform_later
+    end
+
+    assert_equal 2, ActiveJob::Base.queue_adapter.enqueued_jobs.count
+  end
+end
+
+class PerformedJobsTest < ActiveJob::TestCase
+  def test_performed_enqueue_jobs_with_only_option_doesnt_leak_outside_the_block
+    assert_equal nil, queue_adapter.filter
+    perform_enqueued_jobs only: HelloJob do
+      assert_equal HelloJob, queue_adapter.filter
+    end
+    assert_equal nil, queue_adapter.filter
+  end
+
+  def test_assert_performed_jobs
+    assert_nothing_raised do
+      assert_performed_jobs 1 do
+        HelloJob.perform_later('david')
+      end
+    end
+  end
+
+  def test_repeated_performed_jobs_calls
+    assert_nothing_raised do
+      assert_performed_jobs 1 do
+        HelloJob.perform_later('abdelkader')
+      end
+    end
+
+    assert_nothing_raised do
+      assert_performed_jobs 2 do
+        HelloJob.perform_later('sean')
+        HelloJob.perform_later('yves')
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_message
+    HelloJob.perform_later('sean')
+    e = assert_raises Minitest::Assertion do
+      assert_performed_jobs 2 do
+        HelloJob.perform_later('sean')
+      end
+    end
+    assert_match "Expected: 2", e.message
+    assert_match "Actual: 1", e.message
+  end
+
+  def test_assert_performed_jobs_with_no_block
+    assert_nothing_raised do
+      perform_enqueued_jobs do
+        HelloJob.perform_later('rafael')
+      end
+      assert_performed_jobs 1
+    end
+
+    assert_nothing_raised do
+      perform_enqueued_jobs do
+        HelloJob.perform_later('aaron')
+        HelloJob.perform_later('matthew')
+        assert_performed_jobs 3
+      end
+    end
+  end
+
+  def test_assert_no_performed_jobs_with_no_block
+    assert_nothing_raised do
+      assert_no_performed_jobs
+    end
+  end
+
+  def test_assert_no_performed_jobs
+    assert_nothing_raised do
+      assert_no_performed_jobs do
+        # empty block won't perform jobs
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 2 do
+        HelloJob.perform_later('xavier')
+      end
+    end
+
+    assert_match(/2 .* but 1/, error.message)
+  end
+
+  def test_assert_performed_jobs_too_many_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 1 do
+        HelloJob.perform_later('cristian')
+        HelloJob.perform_later('guillermo')
+      end
+    end
+
+    assert_match(/1 .* but 2/, error.message)
+  end
+
+  def test_assert_no_performed_jobs_failure
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_no_performed_jobs do
+        HelloJob.perform_later('jeremy')
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_performed_jobs_with_only_option
+    assert_nothing_raised do
+      assert_performed_jobs 1, only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_with_only_option_as_array
+    assert_nothing_raised do
+      assert_performed_jobs 2, only: [HelloJob, LoggingJob] do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later('stewie')
+        RescueJob.perform_later('david')
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_with_only_option_and_none_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 1, only: HelloJob do
+        LoggingJob.perform_later
+      end
+    end
+
+    assert_match(/1 .* but 0/, error.message)
+  end
+
+  def test_assert_performed_jobs_with_only_option_and_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 5, only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        4.times { LoggingJob.perform_later }
+      end
+    end
+
+    assert_match(/5 .* but 1/, error.message)
+  end
+
+  def test_assert_performed_jobs_with_only_option_and_too_many_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 1, only: HelloJob do
+        2.times { HelloJob.perform_later('jeremy') }
+      end
+    end
+
+    assert_match(/1 .* but 2/, error.message)
+  end
+
+  def test_assert_no_performed_jobs_with_only_option
+    assert_nothing_raised do
+      assert_no_performed_jobs only: HelloJob do
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_no_performed_jobs_with_only_option_as_array
+    assert_nothing_raised do
+      assert_no_performed_jobs only: [HelloJob, RescueJob] do
+        LoggingJob.perform_later
+      end
+    end
+  end
+
+  def test_assert_no_performed_jobs_with_only_option_failure
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_no_performed_jobs only: HelloJob do
+        HelloJob.perform_later('jeremy')
+        LoggingJob.perform_later
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_performed_job
+    assert_performed_with(job: NestedJob, queue: 'default') do
+      NestedJob.perform_later
+    end
+  end
+
+  def test_assert_performed_job_returns
+    job = assert_performed_with(job: NestedJob, queue: 'default') do
+      NestedJob.perform_later
+    end
+
+    assert_instance_of NestedJob, job
+    assert_nil job.scheduled_at
+    assert_equal [], job.arguments
+    assert_equal 'default', job.queue_name
+  end
+
+  def test_assert_performed_job_failure
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: LoggingJob) do
+        HelloJob.perform_later
+      end
+    end
+
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: HelloJob, queue: 'low') do
+        HelloJob.set(queue: 'important').perform_later
+      end
+    end
+  end
+
+  def test_assert_performed_job_with_at_option
+    assert_performed_with(job: HelloJob, at: Date.tomorrow.noon) do
+      HelloJob.set(wait_until: Date.tomorrow.noon).perform_later
+    end
+
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: HelloJob, at: Date.today.noon) do
+        HelloJob.set(wait_until: Date.tomorrow.noon).perform_later
+      end
+    end
+  end
+
+  def test_assert_performed_job_with_global_id_args
+    ricardo = Person.new(9)
+    assert_performed_with(job: HelloJob, args: [ricardo]) do
+      HelloJob.perform_later(ricardo)
+    end
+  end
+
+  def test_assert_performed_job_failure_with_global_id_args
+    ricardo = Person.new(9)
+    wilma = Person.new(11)
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: HelloJob, args: [wilma]) do
+        HelloJob.perform_later(ricardo)
+      end
+    end
+
+    assert_equal "No performed job found with {:job=>HelloJob, :args=>[#{wilma.inspect}]}", error.message
+  end
+
+  def test_assert_performed_job_does_not_change_jobs_count
+    assert_performed_with(job: HelloJob) do
+      HelloJob.perform_later
+    end
+
+    assert_performed_with(job: HelloJob) do
+      HelloJob.perform_later
+    end
+
+    assert_equal 2, ActiveJob::Base.queue_adapter.performed_jobs.count
+  end
+end
diff --git a/activejob/test/cases/translation_test.rb b/activejob/test/cases/translation_test.rb
new file mode 100644
index 0000000000..d5e3aaf9e3
--- /dev/null
+++ b/activejob/test/cases/translation_test.rb
@@ -0,0 +1,20 @@
+require 'helper'
+require 'jobs/translated_hello_job'
+
+class TranslationTest < ActiveSupport::TestCase
+  setup do
+    JobBuffer.clear
+    I18n.available_locales = [:en, :de]
+    @job = TranslatedHelloJob.new('Johannes')
+  end
+
+  teardown do
+    I18n.available_locales = [:en]
+  end
+
+  test 'it performs the job in the given locale' do
+    @job.locale = :de
+    @job.perform_now
+    assert_equal "Johannes says Guten Tag", JobBuffer.last_value
+  end
+end