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-rw-r--r--railties/test/application/configuration_test.rb17
1 files changed, 15 insertions, 2 deletions
diff --git a/railties/test/application/configuration_test.rb b/railties/test/application/configuration_test.rb
index 8f5b2d0d68..38516a1c1a 100644
--- a/railties/test/application/configuration_test.rb
+++ b/railties/test/application/configuration_test.rb
@@ -690,7 +690,7 @@ module ApplicationTests
_ = ActionMailer::Base
- assert_equal [::MyPreviewMailInterceptor], ActionMailer::Base.preview_interceptors
+ assert_equal [ActionMailer::InlinePreviewInterceptor, ::MyPreviewMailInterceptor], ActionMailer::Base.preview_interceptors
end
test "registers multiple preview interceptors with ActionMailer" do
@@ -703,7 +703,20 @@ module ApplicationTests
_ = ActionMailer::Base
- assert_equal [MyPreviewMailInterceptor, MyOtherPreviewMailInterceptor], ActionMailer::Base.preview_interceptors
+ assert_equal [ActionMailer::InlinePreviewInterceptor, MyPreviewMailInterceptor, MyOtherPreviewMailInterceptor], ActionMailer::Base.preview_interceptors
+ end
+
+ test "default preview interceptor can be removed" do
+ app_file 'config/initializers/preview_interceptors.rb', <<-RUBY
+ ActionMailer::Base.preview_interceptors.delete(ActionMailer::InlinePreviewInterceptor)
+ RUBY
+
+ require "#{app_path}/config/environment"
+ require "mail"
+
+ _ = ActionMailer::Base
+
+ assert_equal [], ActionMailer::Base.preview_interceptors
end
test "registers observers with ActionMailer" do