c4f4123ef4
`ActionMailer::Base.delivery_method` and `ActionMailer::Base.perform_deliveries` have leaked states. "delivery method can be customized per instance" and "delivery method can be customized in subclasses not changing the parent" in delivery_methods_test.rb will fail if test_helper_test.rb (in which TestHelperMailerTest is inherited from ActionMailer::TestCase) runs before it.
94 lines
2.5 KiB
Ruby
94 lines
2.5 KiB
Ruby
require 'active_support/test_case'
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module ActionMailer
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class NonInferrableMailerError < ::StandardError
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def initialize(name)
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super "Unable to determine the mailer to test from #{name}. " +
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"You'll need to specify it using tests YourMailer in your " +
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"test case definition"
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end
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end
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class TestCase < ActiveSupport::TestCase
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module Behavior
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extend ActiveSupport::Concern
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include ActiveSupport::Testing::ConstantLookup
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include TestHelper
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included do
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class_attribute :_mailer_class
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setup :initialize_test_deliveries
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setup :set_expected_mail
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teardown :restore_test_deliveries
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end
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module ClassMethods
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def tests(mailer)
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case mailer
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when String, Symbol
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self._mailer_class = mailer.to_s.camelize.constantize
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when Module
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self._mailer_class = mailer
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else
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raise NonInferrableMailerError.new(mailer)
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end
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end
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def mailer_class
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if mailer = self._mailer_class
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mailer
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else
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tests determine_default_mailer(name)
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end
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end
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def determine_default_mailer(name)
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mailer = determine_constant_from_test_name(name) do |constant|
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Class === constant && constant < ActionMailer::Base
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end
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raise NonInferrableMailerError.new(name) if mailer.nil?
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mailer
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end
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end
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protected
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def initialize_test_deliveries
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@old_delivery_method = ActionMailer::Base.delivery_method
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@old_perform_deliveries = ActionMailer::Base.perform_deliveries
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ActionMailer::Base.delivery_method = :test
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ActionMailer::Base.perform_deliveries = true
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end
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def restore_test_deliveries
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ActionMailer::Base.delivery_method = @old_delivery_method
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ActionMailer::Base.perform_deliveries = @old_perform_deliveries
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ActionMailer::Base.deliveries.clear
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end
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def set_expected_mail
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@expected = Mail.new
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@expected.content_type ["text", "plain", { "charset" => charset }]
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@expected.mime_version = '1.0'
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end
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private
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def charset
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"UTF-8"
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end
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def encode(subject)
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Mail::Encodings.q_value_encode(subject, charset)
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end
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def read_fixture(action)
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IO.readlines(File.join(Rails.root, 'test', 'fixtures', self.class.mailer_class.name.underscore, action))
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end
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end
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include Behavior
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end
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end
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