From 9d63111499164884635462bb09f5de979e7bffb9 Mon Sep 17 00:00:00 2001
From: arktisklada <mail@enorganik.com>
Date: Fri, 22 Apr 2016 07:51:39 -0500
Subject: [PATCH] Clear ActionMailer deliveries on setup and teardown

Signed-off-by: Jeremy Daer <jeremydaer@gmail.com>
---
 actionmailer/lib/action_mailer/test_case.rb |  5 ++-
 actionmailer/test/test_case_test.rb         | 38 +++++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/actionmailer/lib/action_mailer/test_case.rb b/actionmailer/lib/action_mailer/test_case.rb
index 65e7347ae4..b045e883ad 100644
--- a/actionmailer/lib/action_mailer/test_case.rb
+++ b/actionmailer/lib/action_mailer/test_case.rb
@@ -15,10 +15,12 @@ module ActionMailer
       extend ActiveSupport::Concern
 
       included do
+        setup :clear_test_deliveries
         teardown :clear_test_deliveries
       end
 
       private
+
       def clear_test_deliveries
         if ActionMailer::Base.delivery_method == :test
           ActionMailer::Base.deliveries.clear
@@ -76,6 +78,7 @@ module ActionMailer
           set_delivery_method :test
           @old_perform_deliveries = ActionMailer::Base.perform_deliveries
           ActionMailer::Base.perform_deliveries = true
+          ActionMailer::Base.deliveries.clear
         end
 
         def restore_test_deliveries # :nodoc:
@@ -89,6 +92,7 @@ module ActionMailer
         end
 
         def restore_delivery_method # :nodoc:
+          ActionMailer::Base.deliveries.clear
           ActionMailer::Base.delivery_method = @old_delivery_method
         end
 
@@ -114,6 +118,5 @@ module ActionMailer
     end
 
     include Behavior
-    include ClearTestDeliveries
   end
 end
diff --git a/actionmailer/test/test_case_test.rb b/actionmailer/test/test_case_test.rb
index 86fd37bea6..5d8d3c3b36 100644
--- a/actionmailer/test/test_case_test.rb
+++ b/actionmailer/test/test_case_test.rb
@@ -3,6 +3,44 @@ require 'abstract_unit'
 class TestTestMailer < ActionMailer::Base
 end
 
+class ClearTestDeliveriesMixinTest < ActiveSupport::TestCase
+  include ActionMailer::TestCase::ClearTestDeliveries
+
+  def before_setup
+    ActionMailer::Base.delivery_method, @original_delivery_method = :test, ActionMailer::Base.delivery_method
+    ActionMailer::Base.deliveries << 'better clear me, setup'
+    super
+  end
+
+  def after_teardown
+    super
+    assert_equal [], ActionMailer::Base.deliveries
+    ActionMailer::Base.delivery_method = @original_delivery_method
+  end
+
+  def test_deliveries_are_cleared_on_setup_and_teardown
+    assert_equal [], ActionMailer::Base.deliveries
+    ActionMailer::Base.deliveries << 'better clear me, teardown'
+  end
+end
+
+class MailerDeliveriesClearingTest < ActionMailer::TestCase
+  def before_setup
+    ActionMailer::Base.deliveries << 'better clear me, setup'
+    super
+  end
+
+  def after_teardown
+    super
+    assert_equal [], ActionMailer::Base.deliveries
+  end
+
+  def test_deliveries_are_cleared_on_setup_and_teardown
+    assert_equal [], ActionMailer::Base.deliveries
+    ActionMailer::Base.deliveries << 'better clear me, teardown'
+  end
+end
+
 class CrazyNameMailerTest < ActionMailer::TestCase
   tests TestTestMailer