Merge pull request #16724 from seuros/testcase

[ActiveJob] TestCase

10 files changed, 531 insertions, 16 deletions

diff --git a/activejob/lib/active_job.rb b/activejob/lib/active_job.rb
index 29123170b8..93d9d1b2d8 100644
--- a/activejob/lib/active_job.rb
+++ b/activejob/lib/active_job.rb
@@ -31,4 +31,6 @@ module ActiveJob
 
   autoload :Base
   autoload :QueueAdapters
+  autoload :TestCase
+  autoload :TestHelper
 end
diff --git a/activejob/lib/active_job/base.rb b/activejob/lib/active_job/base.rb
index d5ba253016..1b54786303 100644
--- a/activejob/lib/active_job/base.rb
+++ b/activejob/lib/active_job/base.rb
@@ -8,8 +8,7 @@ require 'active_job/logging'
 
 module ActiveJob
   class Base
-    extend QueueAdapter
-
+    include QueueAdapter
     include QueueName
     include Enqueuing
     include Execution
diff --git a/activejob/lib/active_job/queue_adapter.rb b/activejob/lib/active_job/queue_adapter.rb
index 13c23abce4..fb54aec75e 100644
--- a/activejob/lib/active_job/queue_adapter.rb
+++ b/activejob/lib/active_job/queue_adapter.rb
@@ -3,21 +3,27 @@ require 'active_support/core_ext/string/inflections'
 
 module ActiveJob
   module QueueAdapter
-    mattr_reader(:queue_adapter) { ActiveJob::QueueAdapters::InlineAdapter }
+    extend ActiveSupport::Concern
 
-    def queue_adapter=(name_or_adapter)
-      @@queue_adapter = \
-        case name_or_adapter
-        when Symbol, String
-          load_adapter(name_or_adapter)
-        when Class
-          name_or_adapter
-        end
-    end
+    module ClassMethods
+      mattr_reader(:queue_adapter) { ActiveJob::QueueAdapters::InlineAdapter }
 
-    private
-      def load_adapter(name)
-        "ActiveJob::QueueAdapters::#{name.to_s.camelize}Adapter".constantize
+      def queue_adapter=(name_or_adapter)
+        @@queue_adapter = \
+          case name_or_adapter
+          when :test
+            ActiveJob::QueueAdapters::TestAdapter.new
+          when Symbol, String
+            load_adapter(name_or_adapter)
+          when Class
+            name_or_adapter
+          end
       end
+
+      private
+        def load_adapter(name)
+          "ActiveJob::QueueAdapters::#{name.to_s.camelize}Adapter".constantize
+        end
+    end
   end
 end
\ No newline at end of file
diff --git a/activejob/lib/active_job/queue_adapters.rb b/activejob/lib/active_job/queue_adapters.rb
index 007068ff0a..345b01ef00 100644
--- a/activejob/lib/active_job/queue_adapters.rb
+++ b/activejob/lib/active_job/queue_adapters.rb
@@ -12,5 +12,6 @@ module ActiveJob
     autoload :SidekiqAdapter
     autoload :SneakersAdapter
     autoload :SuckerPunchAdapter
+    autoload :TestAdapter
   end
 end
diff --git a/activejob/lib/active_job/queue_adapters/test_adapter.rb b/activejob/lib/active_job/queue_adapters/test_adapter.rb
new file mode 100644
index 0000000000..971db9d7de
--- /dev/null
+++ b/activejob/lib/active_job/queue_adapters/test_adapter.rb
@@ -0,0 +1,75 @@
+module ActiveJob
+  module QueueAdapters
+    class TestAdapter
+      attr_accessor(:perform_enqueued_jobs) { false }
+      attr_accessor(:perform_enqueued_at_jobs) { false }
+
+      # Provides a store of all the enqueued jobs with the TestAdapter so you can check them.
+      def enqueued_jobs
+        @enqueued_jobs ||= []
+      end
+
+      # Allows you to overwrite the default enqueued jobs store from an array to some
+      # other object.  If you just want to clear the store,
+      # call ActiveJob::QueueAdapters::TestAdapter.enqueued_jobs.clear.
+      #
+      # If you place another object here, please make sure it responds to:
+      #
+      # * << (message)
+      # * clear
+      # * length
+      # * size
+      # * and other common Array methods
+      def enqueued_jobs=(val)
+        @enqueued_jobs = val
+      end
+
+      # Provides a store of all the performed jobs with the TestAdapter so you can check them.
+      def performed_jobs
+        @performed_jobs ||= []
+      end
+
+      # Allows you to overwrite the default performed jobs store from an array to some
+      # other object.  If you just want to clear the store,
+      # call ActiveJob::QueueAdapters::TestAdapter.performed_jobs.clear.
+      #
+      # If you place another object here, please make sure it responds to:
+      #
+      # * << (message)
+      # * clear
+      # * length
+      # * size
+      # * and other common Array methods
+      def performed_jobs=(val)
+        @performed_jobs = val
+      end
+
+      def enqueue(job, *args)
+        if perform_enqueued_jobs?
+          performed_jobs << {job: job, args: args, queue: job.queue_name}
+          job.new.execute(*args)
+        else
+          enqueued_jobs << {job: job, args: args, queue: job.queue_name}
+        end
+      end
+
+      def enqueue_at(job, timestamp, *args)
+        if perform_enqueued_at_jobs?
+          performed_jobs << {job: job, args: args, queue: job.queue_name, run_at: timestamp}
+          job.new.execute(*args)
+        else
+          enqueued_jobs << {job: job, args: args, queue: job.queue_name, run_at: timestamp}
+        end
+      end
+
+      private
+        def perform_enqueued_jobs?
+          perform_enqueued_jobs
+        end
+
+        def perform_enqueued_at_jobs?
+          perform_enqueued_at_jobs
+        end
+    end
+  end
+end
diff --git a/activejob/lib/active_job/test_case.rb b/activejob/lib/active_job/test_case.rb
new file mode 100644
index 0000000000..d894a7b5cd
--- /dev/null
+++ b/activejob/lib/active_job/test_case.rb
@@ -0,0 +1,7 @@
+require 'active_support/test_case'
+
+module ActiveJob
+  class TestCase < ActiveSupport::TestCase
+    include ActiveJob::TestHelper
+  end
+end
diff --git a/activejob/lib/active_job/test_helper.rb b/activejob/lib/active_job/test_helper.rb
new file mode 100644
index 0000000000..767619097c
--- /dev/null
+++ b/activejob/lib/active_job/test_helper.rb
@@ -0,0 +1,196 @@
+module ActiveJob
+  # Provides helper methods for testing Active Job
+  module TestHelper
+    extend ActiveSupport::Concern
+
+    included do
+      def before_setup
+        @old_queue_adapter  = queue_adapter
+        ActiveJob::Base.queue_adapter = :test
+        clear_enqueued_jobs
+        clear_performed_jobs
+        super
+      end
+
+      def after_teardown
+        super
+        ActiveJob::Base.queue_adapter = @old_queue_adapter
+      end
+
+      # Asserts that the number of enqueued jobs matches the given number.
+      #
+      #   def test_jobs
+      #     assert_enqueued_jobs 0
+      #     HelloJob.enqueue('david')
+      #     assert_enqueued_jobs 1
+      #     HelloJob.enqueue('abdelkader')
+      #     assert_enqueued_jobs 2
+      #   end
+      #
+      # If a block is passed, that block should cause the specified number of
+      # jobs to be enqueued.
+      #
+      #   def test_jobs_again
+      #     assert_enqueued_jobs 1 do
+      #       HelloJob.enqueue('cristian')
+      #     end
+      #
+      #     assert_enqueued_jobs 2 do
+      #       HelloJob.enqueue('aaron')
+      #       HelloJob.enqueue('rafael')
+      #     end
+      #   end
+      def assert_enqueued_jobs(number)
+        if block_given?
+          original_count = enqueued_jobs.size
+          yield
+          new_count = enqueued_jobs.size
+          assert_equal original_count + number, new_count,
+                       "#{number} jobs expected, but #{new_count - original_count} were enqueued"
+        else
+          enqueued_jobs_size = enqueued_jobs.size
+          assert_equal number, enqueued_jobs_size, "#{number} jobs expected, but #{enqueued_jobs_size} were enqueued"
+        end
+      end
+
+      # Assert that no job have been enqueued.
+      #
+      #   def test_jobs
+      #     assert_no_enqueued_jobs
+      #     HelloJob.enqueue('jeremy')
+      #     assert_enqueued_jobs 1
+      #   end
+      #
+      # If a block is passed, that block should not cause any job to be enqueued.
+      #
+      #   def test_jobs_again
+      #     assert_no_enqueued_jobs do
+      #       # No job should be enqueued from this block
+      #     end
+      #   end
+      #
+      # Note: This assertion is simply a shortcut for:
+      #
+      #   assert_enqueued_jobs 0
+      def assert_no_enqueued_jobs(&block)
+        assert_enqueued_jobs 0, &block
+      end
+
+      # Asserts that the number of performed jobs matches the given number.
+      #
+      #   def test_jobs
+      #     assert_performed_jobs 0
+      #     HelloJob.enqueue('xavier')
+      #     assert_performed_jobs 1
+      #     HelloJob.enqueue('yves')
+      #     assert_performed_jobs 2
+      #   end
+      #
+      # If a block is passed, that block should cause the specified number of
+      # jobs to be performed.
+      #
+      #   def test_jobs_again
+      #     assert_performed_jobs 1 do
+      #       HelloJob.enqueue('robin')
+      #     end
+      #
+      #     assert_performed_jobs 2 do
+      #       HelloJob.enqueue('carlos')
+      #       HelloJob.enqueue('sean')
+      #     end
+      #   end
+      def assert_performed_jobs(number)
+        if block_given?
+          original_count = performed_jobs.size
+          yield
+          new_count = performed_jobs.size
+          assert_equal original_count + number, new_count,
+                       "#{number} jobs expected, but #{new_count - original_count} were performed"
+        else
+          performed_jobs_size = performed_jobs.size
+          assert_equal number, performed_jobs_size, "#{number} jobs expected, but #{performed_jobs_size} were performed"
+        end
+      end
+
+      # Asserts that no jobs have been performed.
+      #
+      #   def test_jobs
+      #     assert_no_performed_jobs
+      #     HelloJob.enqueue('matthew')
+      #     assert_performed_jobs 1
+      #   end
+      #
+      # If a block is passed, that block should not cause any job to be performed.
+      #
+      #   def test_jobs_again
+      #     assert_no_performed_jobs do
+      #       # No job should be performed from this block
+      #     end
+      #   end
+      #
+      # Note: This assertion is simply a shortcut for:
+      #
+      #   assert_performed_jobs 0
+      def assert_no_performed_jobs(&block)
+        assert_performed_jobs 0, &block
+      end
+
+      # Asserts that the job passed in the block has been enqueued with the given arguments.
+      #
+      #   def assert_enqueued_job
+      #     assert_enqueued_with(job: MyJob, args: [1,2,3], queue: 'low') do
+      #       MyJob.enqueue(1,2,3)
+      #     end
+      #   end
+      def assert_enqueued_with(args = {}, &_block)
+        original_enqueued_jobs = enqueued_jobs.dup
+        clear_enqueued_jobs
+        args.assert_valid_keys(:job, :args, :at, :queue)
+        yield
+        matching_job = enqueued_jobs.any? do |job|
+          args.all? { |key, value| value == job[key] }
+        end
+        assert matching_job
+      ensure
+        queue_adapter.enqueued_jobs = original_enqueued_jobs + enqueued_jobs
+      end
+
+      # Asserts that the job passed in the block has been performed with the given arguments.
+      #
+      #   def test_assert_performed_with
+      #     assert_performed_with(job: MyJob, args: [1,2,3], queue: 'high') do
+      #       MyJob.enqueue(1,2,3)
+      #     end
+      #   end
+      def assert_performed_with(args = {}, &_block)
+        original_performed_jobs = performed_jobs.dup
+        clear_performed_jobs
+        args.assert_valid_keys(:job, :args, :at, :queue)
+        yield
+        matching_job = performed_jobs.any? do |job|
+          args.all? { |key, value| value == job[key] }
+        end
+        assert matching_job, "No performed job found with #{args}"
+      ensure
+        queue_adapter.performed_jobs = original_performed_jobs + performed_jobs
+      end
+
+      def queue_adapter
+        ActiveJob::Base.queue_adapter
+      end
+
+      delegate :enqueued_jobs, :enqueued_jobs=,
+               :performed_jobs, :performed_jobs=,
+               to: :queue_adapter
+
+      private
+        def clear_enqueued_jobs
+          enqueued_jobs.clear
+        end
+
+        def clear_performed_jobs
+          performed_jobs.clear
+        end
+    end
+  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..1d0fdbd22d
--- /dev/null
+++ b/activejob/test/cases/test_case_test.rb
@@ -0,0 +1,14 @@
+require 'helper'
+require 'jobs/hello_job'
+require 'jobs/logging_job'
+require 'jobs/nested_job'
+
+class ActiveJobTestCaseTest < ActiveJob::TestCase
+  def test_include_helper
+    assert_includes self.class.ancestors, ActiveJob::TestHelper
+  end
+
+  def test_set_test_adapter
+    assert_instance_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..240aa23ce3
--- /dev/null
+++ b/activejob/test/cases/test_helper_test.rb
@@ -0,0 +1,214 @@
+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'
+
+class EnqueuedJobsTest < ActiveJob::TestCase
+  setup { queue_adapter.perform_enqueued_at_jobs = true }
+
+  def test_assert_enqueued_jobs
+    assert_nothing_raised do
+      assert_enqueued_jobs 1 do
+        HelloJob.enqueue('david')
+      end
+    end
+  end
+
+  def test_repeated_enqueued_jobs_calls
+    assert_nothing_raised do
+      assert_enqueued_jobs 1 do
+        HelloJob.enqueue('abdelkader')
+      end
+    end
+
+    assert_nothing_raised do
+      assert_enqueued_jobs 2 do
+        HelloJob.enqueue('sean')
+        HelloJob.enqueue('yves')
+      end
+    end
+  end
+
+  def test_assert_enqueued_jobs_with_no_block
+    assert_nothing_raised do
+      HelloJob.enqueue('rafael')
+      assert_enqueued_jobs 1
+    end
+
+    assert_nothing_raised do
+      HelloJob.enqueue('aaron')
+      HelloJob.enqueue('matthew')
+      assert_enqueued_jobs 3
+    end
+  end
+
+  def test_assert_no_enqueued_jobs
+    assert_nothing_raised do
+      assert_no_enqueued_jobs do
+        # Scheduled jobs are being performed in this context
+        HelloJob.enqueue_at(Date.tomorrow.noon, 'godfrey')
+      end
+    end
+  end
+
+  def test_assert_enqueued_jobs_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_jobs 2 do
+        HelloJob.enqueue('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.enqueue('cristian')
+        HelloJob.enqueue('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.enqueue('jeremy')
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_enqueued_job
+    assert_enqueued_with(job: LoggingJob, queue: 'default') do
+      NestedJob.enqueue_at(Date.tomorrow.noon)
+    end
+  end
+
+  def test_assert_enqueued_job_failure
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_with(job: LoggingJob, queue: 'default') do
+        NestedJob.enqueue
+      end
+    end
+
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_enqueued_with(job: NestedJob, queue: 'low') do
+        NestedJob.enqueue
+      end
+    end
+  end
+
+  def test_assert_enqueued_job_args
+    assert_raise ArgumentError do
+      assert_enqueued_with(class: LoggingJob) do
+        NestedJob.enqueue_at(Date.tomorrow.noon)
+      end
+    end
+  end
+end
+
+class PerformedJobsTest < ActiveJob::TestCase
+  setup { queue_adapter.perform_enqueued_jobs = true }
+
+  def test_assert_performed_jobs
+    assert_nothing_raised do
+      assert_performed_jobs 1 do
+        HelloJob.enqueue('david')
+      end
+    end
+  end
+
+  def test_repeated_performed_jobs_calls
+    assert_nothing_raised do
+      assert_performed_jobs 1 do
+        HelloJob.enqueue('abdelkader')
+      end
+    end
+
+    assert_nothing_raised do
+      assert_performed_jobs 2 do
+        HelloJob.enqueue('sean')
+        HelloJob.enqueue('yves')
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_with_no_block
+    assert_nothing_raised do
+      HelloJob.enqueue('rafael')
+      assert_performed_jobs 1
+    end
+
+    assert_nothing_raised do
+      HelloJob.enqueue('aaron')
+      HelloJob.enqueue('matthew')
+      assert_performed_jobs 3
+    end
+  end
+
+  def test_assert_no_performed_jobs
+    assert_nothing_raised do
+      assert_no_performed_jobs do
+        # Scheduled jobs are being enqueued in this context
+        HelloJob.enqueue_at(Date.tomorrow.noon, 'godfrey')
+      end
+    end
+  end
+
+  def test_assert_performed_jobs_too_few_sent
+    error = assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_jobs 2 do
+        HelloJob.enqueue('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.enqueue('cristian')
+        HelloJob.enqueue('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.enqueue('jeremy')
+      end
+    end
+
+    assert_match(/0 .* but 1/, error.message)
+  end
+
+  def test_assert_performed_job
+    assert_performed_with(job: NestedJob, queue: 'default') do
+      NestedJob.enqueue
+    end
+  end
+
+  def test_assert_performed_job_failure
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: LoggingJob, queue: 'default') do
+        NestedJob.enqueue_at(Date.tomorrow.noon)
+      end
+    end
+
+    assert_raise ActiveSupport::TestCase::Assertion do
+      assert_performed_with(job: NestedJob, queue: 'low') do
+        NestedJob.enqueue_at(Date.tomorrow.noon)
+      end
+    end
+  end
+end
diff --git a/railties/lib/rails/generators/test_unit/job/templates/unit_test.rb.erb b/railties/lib/rails/generators/test_unit/job/templates/unit_test.rb.erb
index 6200218313..feb250e89a 100644
--- a/railties/lib/rails/generators/test_unit/job/templates/unit_test.rb.erb
+++ b/railties/lib/rails/generators/test_unit/job/templates/unit_test.rb.erb
@@ -1,7 +1,8 @@
 require 'test_helper'
 
 <% module_namespacing do -%>
-class <%= class_name %>JobTest < ActiveSupport::TestCase
+class <%= class_name %>JobTest < ActiveJob::TestCase
+
   # test "the truth" do
   #   assert true
   # end