require "abstract_unit" require "set" require "action_dispatch" require "active_support/time" require "mailers/base_mailer" require "mailers/proc_mailer" require "mailers/asset_mailer" class BaseTest < ActiveSupport::TestCase include Rails::Dom::Testing::Assertions::DomAssertions setup do @original_delivery_method = ActionMailer::Base.delivery_method ActionMailer::Base.delivery_method = :test @original_asset_host = ActionMailer::Base.asset_host @original_assets_dir = ActionMailer::Base.assets_dir end teardown do ActionMailer::Base.asset_host = @original_asset_host ActionMailer::Base.assets_dir = @original_assets_dir BaseMailer.deliveries.clear ActionMailer::Base.delivery_method = @original_delivery_method end test "method call to mail does not raise error" do assert_nothing_raised { BaseMailer.welcome } end # Basic mail usage without block test "mail() should set the headers of the mail message" do email = BaseMailer.welcome assert_equal(["system@test.lindsaar.net"], email.to) assert_equal(["jose@test.plataformatec.com"], email.from) assert_equal("The first email on new API!", email.subject) end test "mail() with from overwrites the class level default" do email = BaseMailer.welcome(from: "someone@example.com", to: "another@example.org") assert_equal(["someone@example.com"], email.from) assert_equal(["another@example.org"], email.to) end test "mail() with bcc, cc, content_type, charset, mime_version, reply_to and date" do time = Time.now.beginning_of_day.to_datetime email = BaseMailer.welcome(bcc: "bcc@test.lindsaar.net", cc: "cc@test.lindsaar.net", content_type: "multipart/mixed", charset: "iso-8559-1", mime_version: "2.0", reply_to: "reply-to@test.lindsaar.net", date: time) assert_equal(["bcc@test.lindsaar.net"], email.bcc) assert_equal(["cc@test.lindsaar.net"], email.cc) assert_equal("multipart/mixed; charset=iso-8559-1", email.content_type) assert_equal("iso-8559-1", email.charset) assert_equal("2.0", email.mime_version) assert_equal(["reply-to@test.lindsaar.net"], email.reply_to) assert_equal(time, email.date) end test "mail() renders the template using the method being processed" do email = BaseMailer.welcome assert_equal("Welcome", email.body.encoded) end test "can pass in :body to the mail method hash" do email = BaseMailer.welcome(body: "Hello there") assert_equal("text/plain", email.mime_type) assert_equal("Hello there", email.body.encoded) end test "should set template content type if mail has only one part" do mail = BaseMailer.html_only assert_equal("text/html", mail.mime_type) mail = BaseMailer.plain_text_only assert_equal("text/plain", mail.mime_type) end # Custom headers test "custom headers" do email = BaseMailer.welcome assert_equal("Not SPAM", email["X-SPAM"].decoded) end test "can pass random headers in as a hash to mail" do hash = { "X-Special-Domain-Specific-Header" => "SecretValue", "In-Reply-To" => "1234@mikel.me.com" } mail = BaseMailer.welcome(hash) assert_equal("SecretValue", mail["X-Special-Domain-Specific-Header"].decoded) assert_equal("1234@mikel.me.com", mail["In-Reply-To"].decoded) end test "can pass random headers in as a hash to headers" do hash = { "X-Special-Domain-Specific-Header" => "SecretValue", "In-Reply-To" => "1234@mikel.me.com" } mail = BaseMailer.welcome_with_headers(hash) assert_equal("SecretValue", mail["X-Special-Domain-Specific-Header"].decoded) assert_equal("1234@mikel.me.com", mail["In-Reply-To"].decoded) end # Attachments test "attachment with content" do email = BaseMailer.attachment_with_content assert_equal(1, email.attachments.length) assert_equal("invoice.pdf", email.attachments[0].filename) assert_equal("This is test File content", email.attachments["invoice.pdf"].decoded) end test "attachment gets content type from filename" do email = BaseMailer.attachment_with_content assert_equal("invoice.pdf", email.attachments[0].filename) assert_equal("application/pdf", email.attachments[0].mime_type) end test "attachment with hash" do email = BaseMailer.attachment_with_hash assert_equal(1, email.attachments.length) assert_equal("invoice.jpg", email.attachments[0].filename) expected = "\312\213\254\232)b" expected.force_encoding(Encoding::BINARY) assert_equal expected, email.attachments["invoice.jpg"].decoded end test "attachment with hash using default mail encoding" do email = BaseMailer.attachment_with_hash_default_encoding assert_equal(1, email.attachments.length) assert_equal("invoice.jpg", email.attachments[0].filename) expected = "\312\213\254\232)b" expected.force_encoding(Encoding::BINARY) assert_equal expected, email.attachments["invoice.jpg"].decoded end test "sets mime type to multipart/mixed when attachment is included" do email = BaseMailer.attachment_with_content assert_equal(1, email.attachments.length) assert_equal("multipart/mixed", email.mime_type) end test "adds the rendered template as part" do email = BaseMailer.attachment_with_content assert_equal(2, email.parts.length) assert_equal("multipart/mixed", email.mime_type) assert_equal("text/html", email.parts[0].mime_type) assert_equal("Attachment with content", email.parts[0].body.encoded) assert_equal("application/pdf", email.parts[1].mime_type) assert_equal("VGhpcyBpcyB0ZXN0IEZpbGUgY29udGVudA==\r\n", email.parts[1].body.encoded) end test "adds the given :body as part" do email = BaseMailer.attachment_with_content(body: "I'm the eggman") assert_equal(2, email.parts.length) assert_equal("multipart/mixed", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("I'm the eggman", email.parts[0].body.encoded) assert_equal("application/pdf", email.parts[1].mime_type) assert_equal("VGhpcyBpcyB0ZXN0IEZpbGUgY29udGVudA==\r\n", email.parts[1].body.encoded) end test "can embed an inline attachment" do email = BaseMailer.inline_attachment # Need to call #encoded to force the JIT sort on parts email.encoded assert_equal(2, email.parts.length) assert_equal("multipart/related", email.mime_type) assert_equal("multipart/alternative", email.parts[0].mime_type) assert_equal("text/plain", email.parts[0].parts[0].mime_type) assert_equal("text/html", email.parts[0].parts[1].mime_type) assert_equal("logo.png", email.parts[1].filename) end # Defaults values test "uses default charset from class" do with_default BaseMailer, charset: "US-ASCII" do email = BaseMailer.welcome assert_equal("US-ASCII", email.charset) email = BaseMailer.welcome(charset: "iso-8559-1") assert_equal("iso-8559-1", email.charset) end end test "uses default content type from class" do with_default BaseMailer, content_type: "text/html" do email = BaseMailer.welcome assert_equal("text/html", email.mime_type) email = BaseMailer.welcome(content_type: "text/plain") assert_equal("text/plain", email.mime_type) end end test "uses default mime version from class" do with_default BaseMailer, mime_version: "2.0" do email = BaseMailer.welcome assert_equal("2.0", email.mime_version) email = BaseMailer.welcome(mime_version: "1.0") assert_equal("1.0", email.mime_version) end end test "uses random default headers from class" do with_default BaseMailer, "X-Custom" => "Custom" do email = BaseMailer.welcome assert_equal("Custom", email["X-Custom"].decoded) end end test "subject gets default from I18n" do with_default BaseMailer, subject: nil do email = BaseMailer.welcome(subject: nil) assert_equal "Welcome", email.subject with_translation "en", base_mailer: { welcome: { subject: "New Subject!" } } do email = BaseMailer.welcome(subject: nil) assert_equal "New Subject!", email.subject end end end test "default subject can have interpolations" do with_translation "en", base_mailer: { with_subject_interpolations: { subject: "Will the real %{rapper_or_impersonator} please stand up?" } } do email = BaseMailer.with_subject_interpolations assert_equal "Will the real Slim Shady please stand up?", email.subject end end test "translations are scoped properly" do with_translation "en", base_mailer: { email_with_translations: { greet_user: "Hello %{name}!" } } do email = BaseMailer.email_with_translations assert_equal "Hello lifo!", email.body.encoded end end test "adding attachments after mail was called raises exception" do class LateAttachmentMailer < ActionMailer::Base def welcome mail body: "yay", from: "welcome@example.com", to: "to@example.com" attachments["invoice.pdf"] = "This is test File content" end end e = assert_raises(RuntimeError) { LateAttachmentMailer.welcome.message } assert_match(/Can't add attachments after `mail` was called./, e.message) end test "adding inline attachments after mail was called raises exception" do class LateInlineAttachmentMailer < ActionMailer::Base def welcome mail body: "yay", from: "welcome@example.com", to: "to@example.com" attachments.inline["invoice.pdf"] = "This is test File content" end end e = assert_raises(RuntimeError) { LateInlineAttachmentMailer.welcome.message } assert_match(/Can't add attachments after `mail` was called./, e.message) end test "adding inline attachments while rendering mail works" do class LateInlineAttachmentMailer < ActionMailer::Base def on_render mail from: "welcome@example.com", to: "to@example.com" end end mail = LateInlineAttachmentMailer.on_render assert_nothing_raised { mail.message } assert_equal ["image/jpeg; filename=controller_attachments.jpg", "image/jpeg; filename=attachments.jpg"], mail.attachments.inline.map { |a| a["Content-Type"].to_s } end test "accessing attachments works after mail was called" do class LateAttachmentAccessorMailer < ActionMailer::Base def welcome attachments["invoice.pdf"] = "This is test File content" mail body: "yay", from: "welcome@example.com", to: "to@example.com" unless attachments.map(&:filename) == ["invoice.pdf"] raise Minitest::Assertion, "Should allow access to attachments" end end end assert_nothing_raised { LateAttachmentAccessorMailer.welcome.message } end # Implicit multipart test "implicit multipart" do email = BaseMailer.implicit_multipart assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("TEXT Implicit Multipart", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("HTML Implicit Multipart", email.parts[1].body.encoded) end test "implicit multipart with sort order" do order = ["text/html", "text/plain"] with_default BaseMailer, parts_order: order do email = BaseMailer.implicit_multipart assert_equal("text/html", email.parts[0].mime_type) assert_equal("text/plain", email.parts[1].mime_type) email = BaseMailer.implicit_multipart(parts_order: order.reverse) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("text/html", email.parts[1].mime_type) end end test "implicit multipart with attachments creates nested parts" do email = BaseMailer.implicit_multipart(attachments: true) assert_equal("application/pdf", email.parts[0].mime_type) assert_equal("multipart/alternative", email.parts[1].mime_type) assert_equal("text/plain", email.parts[1].parts[0].mime_type) assert_equal("TEXT Implicit Multipart", email.parts[1].parts[0].body.encoded) assert_equal("text/html", email.parts[1].parts[1].mime_type) assert_equal("HTML Implicit Multipart", email.parts[1].parts[1].body.encoded) end test "implicit multipart with attachments and sort order" do order = ["text/html", "text/plain"] with_default BaseMailer, parts_order: order do email = BaseMailer.implicit_multipart(attachments: true) assert_equal("application/pdf", email.parts[0].mime_type) assert_equal("multipart/alternative", email.parts[1].mime_type) assert_equal("text/plain", email.parts[1].parts[1].mime_type) assert_equal("text/html", email.parts[1].parts[0].mime_type) end end test "implicit multipart with default locale" do email = BaseMailer.implicit_with_locale assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("Implicit with locale TEXT", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("Implicit with locale EN HTML", email.parts[1].body.encoded) end test "implicit multipart with other locale" do swap I18n, locale: :pl do email = BaseMailer.implicit_with_locale assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("Implicit with locale PL TEXT", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("Implicit with locale EN HTML", email.parts[1].body.encoded) end end test "implicit multipart with fallback locale" do fallback_backend = Class.new(I18n::Backend::Simple) do include I18n::Backend::Fallbacks end begin backend = I18n.backend I18n.backend = fallback_backend.new I18n.fallbacks[:"de-AT"] = [:de] swap I18n, locale: "de-AT" do email = BaseMailer.implicit_with_locale assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("Implicit with locale DE-AT TEXT", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("Implicit with locale DE HTML", email.parts[1].body.encoded) end ensure I18n.backend = backend end end test "implicit multipart with several view paths uses the first one with template" do old = BaseMailer.view_paths begin BaseMailer.view_paths = [File.join(FIXTURE_LOAD_PATH, "another.path")] + old.dup email = BaseMailer.welcome assert_equal("Welcome from another path", email.body.encoded) ensure BaseMailer.view_paths = old end end test "implicit multipart with inexistent templates uses the next view path" do old = BaseMailer.view_paths begin BaseMailer.view_paths = [File.join(FIXTURE_LOAD_PATH, "unknown")] + old.dup email = BaseMailer.welcome assert_equal("Welcome", email.body.encoded) ensure BaseMailer.view_paths = old end end # Explicit multipart test "explicit multipart" do email = BaseMailer.explicit_multipart assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("TEXT Explicit Multipart", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("HTML Explicit Multipart", email.parts[1].body.encoded) end test "explicit multipart have a boundary" do mail = BaseMailer.explicit_multipart assert_not_nil(mail.content_type_parameters[:boundary]) end test "explicit multipart with attachments creates nested parts" do email = BaseMailer.explicit_multipart(attachments: true) assert_equal("application/pdf", email.parts[0].mime_type) assert_equal("multipart/alternative", email.parts[1].mime_type) assert_equal("text/plain", email.parts[1].parts[0].mime_type) assert_equal("TEXT Explicit Multipart", email.parts[1].parts[0].body.encoded) assert_equal("text/html", email.parts[1].parts[1].mime_type) assert_equal("HTML Explicit Multipart", email.parts[1].parts[1].body.encoded) end test "explicit multipart with templates" do email = BaseMailer.explicit_multipart_templates assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("TEXT Explicit Multipart Templates", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("HTML Explicit Multipart Templates", email.parts[1].body.encoded) end test "explicit multipart with format.any" do email = BaseMailer.explicit_multipart_with_any assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("Format with any!", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("Format with any!", email.parts[1].body.encoded) end test "explicit without specifying format with format.any" do error = assert_raises(ArgumentError) do BaseMailer.explicit_without_specifying_format_with_any.parts end assert_equal "You have to supply at least one format", error.message end test "explicit multipart with format(Hash)" do email = BaseMailer.explicit_multipart_with_options(true) email.ready_to_send! assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("base64", email.parts[0].content_transfer_encoding) assert_equal("text/html", email.parts[1].mime_type) assert_equal("7bit", email.parts[1].content_transfer_encoding) end test "explicit multipart with one part is rendered as body and options are merged" do email = BaseMailer.explicit_multipart_with_options assert_equal(0, email.parts.size) assert_equal("text/plain", email.mime_type) assert_equal("base64", email.content_transfer_encoding) end test "explicit multipart with one template has the expected format" do email = BaseMailer.explicit_multipart_with_one_template assert_equal(2, email.parts.size) assert_equal("multipart/alternative", email.mime_type) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("[:text]", email.parts[0].body.encoded) assert_equal("text/html", email.parts[1].mime_type) assert_equal("[:html]", email.parts[1].body.encoded) end test "explicit multipart with sort order" do order = ["text/html", "text/plain"] with_default BaseMailer, parts_order: order do email = BaseMailer.explicit_multipart assert_equal("text/html", email.parts[0].mime_type) assert_equal("text/plain", email.parts[1].mime_type) email = BaseMailer.explicit_multipart(parts_order: order.reverse) assert_equal("text/plain", email.parts[0].mime_type) assert_equal("text/html", email.parts[1].mime_type) end end # Class level API with method missing test "should respond to action methods" do assert_respond_to BaseMailer, :welcome assert_respond_to BaseMailer, :implicit_multipart assert !BaseMailer.respond_to?(:mail) assert !BaseMailer.respond_to?(:headers) end test "calling just the action should return the generated mail object" do email = BaseMailer.welcome assert_equal(0, BaseMailer.deliveries.length) assert_equal("The first email on new API!", email.subject) end test "calling deliver on the action should deliver the mail object" do assert_called(BaseMailer, :deliver_mail) do mail = BaseMailer.welcome.deliver_now assert_equal "The first email on new API!", mail.subject end end test "calling deliver on the action should increment the deliveries collection if using the test mailer" do BaseMailer.welcome.deliver_now assert_equal(1, BaseMailer.deliveries.length) end test "calling deliver, ActionMailer should yield back to mail to let it call :do_delivery on itself" do mail = Mail::Message.new assert_called(mail, :do_delivery) do assert_called(BaseMailer, :welcome, returns: mail) do BaseMailer.welcome.deliver end end end # Rendering test "you can specify a different template for implicit render" do mail = BaseMailer.implicit_different_template("implicit_multipart").deliver_now assert_equal("HTML Implicit Multipart", mail.html_part.body.decoded) assert_equal("TEXT Implicit Multipart", mail.text_part.body.decoded) end test "should raise if missing template in implicit render" do assert_raises ActionView::MissingTemplate do BaseMailer.implicit_different_template("missing_template").deliver_now end assert_equal(0, BaseMailer.deliveries.length) end test "you can specify a different template for explicit render" do mail = BaseMailer.explicit_different_template("explicit_multipart_templates").deliver_now assert_equal("HTML Explicit Multipart Templates", mail.html_part.body.decoded) assert_equal("TEXT Explicit Multipart Templates", mail.text_part.body.decoded) end test "you can specify a different layout" do mail = BaseMailer.different_layout("different_layout").deliver_now assert_equal("HTML -- HTML", mail.html_part.body.decoded) assert_equal("PLAIN -- PLAIN", mail.text_part.body.decoded) end test "you can specify the template path for implicit lookup" do mail = BaseMailer.welcome_from_another_path("another.path/base_mailer").deliver_now assert_equal("Welcome from another path", mail.body.encoded) mail = BaseMailer.welcome_from_another_path(["unknown/invalid", "another.path/base_mailer"]).deliver_now assert_equal("Welcome from another path", mail.body.encoded) end test "assets tags should use ActionMailer's asset_host settings" do ActionMailer::Base.config.asset_host = "http://global.com" ActionMailer::Base.config.assets_dir = "global/" mail = AssetMailer.welcome assert_dom_equal(%{Dummy}, mail.body.to_s.strip) end test "assets tags should use a Mailer's asset_host settings when available" do ActionMailer::Base.config.asset_host = "http://global.com" ActionMailer::Base.config.assets_dir = "global/" TempAssetMailer = Class.new(AssetMailer) do self.mailer_name = "asset_mailer" self.asset_host = "http://local.com" end mail = TempAssetMailer.welcome assert_dom_equal(%{Dummy}, mail.body.to_s.strip) end test "the view is not rendered when mail was never called" do mail = BaseMailer.without_mail_call assert_equal("", mail.body.to_s.strip) mail.deliver_now end test "the return value of mailer methods is not relevant" do mail = BaseMailer.with_nil_as_return_value assert_equal("Welcome", mail.body.to_s.strip) mail.deliver_now end # Before and After hooks class MyObserver def self.delivered_email(mail) end end class MySecondObserver def self.delivered_email(mail) end end test "you can register an observer to the mail object that gets informed on email delivery" do mail_side_effects do ActionMailer::Base.register_observer(MyObserver) mail = BaseMailer.welcome assert_called_with(MyObserver, :delivered_email, [mail]) do mail.deliver_now end end end test "you can register an observer using its stringified name to the mail object that gets informed on email delivery" do mail_side_effects do ActionMailer::Base.register_observer("BaseTest::MyObserver") mail = BaseMailer.welcome assert_called_with(MyObserver, :delivered_email, [mail]) do mail.deliver_now end end end test "you can register an observer using its symbolized underscored name to the mail object that gets informed on email delivery" do mail_side_effects do ActionMailer::Base.register_observer(:"base_test/my_observer") mail = BaseMailer.welcome assert_called_with(MyObserver, :delivered_email, [mail]) do mail.deliver_now end end end test "you can register multiple observers to the mail object that both get informed on email delivery" do mail_side_effects do ActionMailer::Base.register_observers("BaseTest::MyObserver", MySecondObserver) mail = BaseMailer.welcome assert_called_with(MyObserver, :delivered_email, [mail]) do assert_called_with(MySecondObserver, :delivered_email, [mail]) do mail.deliver_now end end end end class MyInterceptor def self.delivering_email(mail); end def self.previewing_email(mail); end end class MySecondInterceptor def self.delivering_email(mail); end def self.previewing_email(mail); end end test "you can register an interceptor to the mail object that gets passed the mail object before delivery" do mail_side_effects do ActionMailer::Base.register_interceptor(MyInterceptor) mail = BaseMailer.welcome assert_called_with(MyInterceptor, :delivering_email, [mail]) do mail.deliver_now end end end test "you can register an interceptor using its stringified name to the mail object that gets passed the mail object before delivery" do mail_side_effects do ActionMailer::Base.register_interceptor("BaseTest::MyInterceptor") mail = BaseMailer.welcome assert_called_with(MyInterceptor, :delivering_email, [mail]) do mail.deliver_now end end end test "you can register an interceptor using its symbolized underscored name to the mail object that gets passed the mail object before delivery" do mail_side_effects do ActionMailer::Base.register_interceptor(:"base_test/my_interceptor") mail = BaseMailer.welcome assert_called_with(MyInterceptor, :delivering_email, [mail]) do mail.deliver_now end end end test "you can register multiple interceptors to the mail object that both get passed the mail object before delivery" do mail_side_effects do ActionMailer::Base.register_interceptors("BaseTest::MyInterceptor", MySecondInterceptor) mail = BaseMailer.welcome assert_called_with(MyInterceptor, :delivering_email, [mail]) do assert_called_with(MySecondInterceptor, :delivering_email, [mail]) do mail.deliver_now end end end end test "being able to put proc's into the defaults hash and they get evaluated on mail sending" do mail1 = ProcMailer.welcome["X-Proc-Method"] yesterday = 1.day.ago Time.stub(:now, yesterday) do mail2 = ProcMailer.welcome["X-Proc-Method"] assert(mail1.to_s.to_i > mail2.to_s.to_i) end end test "default values which have to_proc (e.g. symbols) should not be considered procs" do assert(ProcMailer.welcome["x-has-to-proc"].to_s == "symbol") end test "we can call other defined methods on the class as needed" do mail = ProcMailer.welcome assert_equal("Thanks for signing up this afternoon", mail.subject) end test "modifying the mail message with a before_action" do class BeforeActionMailer < ActionMailer::Base before_action :add_special_header! def welcome ; mail ; end private def add_special_header! headers("X-Special-Header" => "Wow, so special") end end assert_equal("Wow, so special", BeforeActionMailer.welcome["X-Special-Header"].to_s) end test "modifying the mail message with an after_action" do class AfterActionMailer < ActionMailer::Base after_action :add_special_header! def welcome ; mail ; end private def add_special_header! headers("X-Special-Header" => "Testing") end end assert_equal("Testing", AfterActionMailer.welcome["X-Special-Header"].to_s) end test "adding an inline attachment using a before_action" do class DefaultInlineAttachmentMailer < ActionMailer::Base before_action :add_inline_attachment! def welcome ; mail ; end private def add_inline_attachment! attachments.inline["footer.jpg"] = "hey there" end end mail = DefaultInlineAttachmentMailer.welcome assert_equal("image/jpeg; filename=footer.jpg", mail.attachments.inline.first["Content-Type"].to_s) end test "action methods should be refreshed after defining new method" do class FooMailer < ActionMailer::Base # This triggers action_methods. respond_to?(:foo) def notify end end assert_equal Set.new(["notify"]), FooMailer.action_methods end test "mailer can be anonymous" do mailer = Class.new(ActionMailer::Base) do def welcome mail end end assert_equal "anonymous", mailer.mailer_name assert_equal "Welcome", mailer.welcome.subject assert_equal "Anonymous mailer body", mailer.welcome.body.encoded.strip end test "default_from can be set" do class DefaultFromMailer < ActionMailer::Base default to: "system@test.lindsaar.net" self.default_options = { from: "robert.pankowecki@gmail.com" } def welcome mail(subject: "subject", body: "hello world") end end assert_equal ["robert.pankowecki@gmail.com"], DefaultFromMailer.welcome.from end test "mail() without arguments serves as getter for the current mail message" do class MailerWithCallback < ActionMailer::Base after_action :a_callback def welcome headers("X-Special-Header" => "special indeed!") mail subject: "subject", body: "hello world", to: ["joe@example.com"] end def a_callback mail.to << "jane@example.com" end end mail = MailerWithCallback.welcome assert_equal "subject", mail.subject assert_equal ["joe@example.com", "jane@example.com"], mail.to assert_equal "hello world", mail.body.encoded.strip assert_equal "special indeed!", mail["X-Special-Header"].to_s end protected # Execute the block setting the given values and restoring old values after # the block is executed. def swap(klass, new_values) old_values = {} new_values.each do |key, value| old_values[key] = klass.send key klass.send :"#{key}=", value end yield ensure old_values.each do |key, value| klass.send :"#{key}=", value end end def with_default(klass, new_values) old = klass.default_params klass.default(new_values) yield ensure klass.default_params = old end # A simple hack to restore the observers and interceptors for Mail, as it # does not have an unregister API yet. def mail_side_effects old_observers = Mail.class_variable_get(:@@delivery_notification_observers) old_delivery_interceptors = Mail.class_variable_get(:@@delivery_interceptors) yield ensure Mail.class_variable_set(:@@delivery_notification_observers, old_observers) Mail.class_variable_set(:@@delivery_interceptors, old_delivery_interceptors) end def with_translation(locale, data) I18n.backend.store_translations(locale, data) yield ensure I18n.backend.reload! end end class BasePreviewInterceptorsTest < ActiveSupport::TestCase teardown do ActionMailer::Base.preview_interceptors.clear end class BaseMailerPreview < ActionMailer::Preview def welcome BaseMailer.welcome end end class MyInterceptor def self.delivering_email(mail); end def self.previewing_email(mail); end end class MySecondInterceptor def self.delivering_email(mail); end def self.previewing_email(mail); end end test "you can register a preview interceptor to the mail object that gets passed the mail object before previewing" do ActionMailer::Base.register_preview_interceptor(MyInterceptor) mail = BaseMailer.welcome stub_any_instance(BaseMailerPreview) do |instance| instance.stub(:welcome, mail) do assert_called_with(MyInterceptor, :previewing_email, [mail]) do BaseMailerPreview.call(:welcome) end end end end test "you can register a preview interceptor using its stringified name to the mail object that gets passed the mail object before previewing" do ActionMailer::Base.register_preview_interceptor("BasePreviewInterceptorsTest::MyInterceptor") mail = BaseMailer.welcome stub_any_instance(BaseMailerPreview) do |instance| instance.stub(:welcome, mail) do assert_called_with(MyInterceptor, :previewing_email, [mail]) do BaseMailerPreview.call(:welcome) end end end end test "you can register an interceptor using its symbolized underscored name to the mail object that gets passed the mail object before previewing" do ActionMailer::Base.register_preview_interceptor(:"base_preview_interceptors_test/my_interceptor") mail = BaseMailer.welcome stub_any_instance(BaseMailerPreview) do |instance| instance.stub(:welcome, mail) do assert_called_with(MyInterceptor, :previewing_email, [mail]) do BaseMailerPreview.call(:welcome) end end end end test "you can register multiple preview interceptors to the mail object that both get passed the mail object before previewing" do ActionMailer::Base.register_preview_interceptors("BasePreviewInterceptorsTest::MyInterceptor", MySecondInterceptor) mail = BaseMailer.welcome stub_any_instance(BaseMailerPreview) do |instance| instance.stub(:welcome, mail) do assert_called_with(MyInterceptor, :previewing_email, [mail]) do assert_called_with(MySecondInterceptor, :previewing_email, [mail]) do BaseMailerPreview.call(:welcome) end end end end end end