diff --git a/.rspec b/.rspec
new file mode 100644
index 0000000..83e16f8
--- /dev/null
+++ b/.rspec
@@ -0,0 +1,2 @@
+--color
+--require spec_helper
diff --git a/.rubocop.yml b/.rubocop.yml
index 6fdaa42..17005c3 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -3,3 +3,4 @@ inherit_from:
 Metrics/BlockLength:
   Exclude:
     - 'test/**/*'
+    - 'spec/**/*'
diff --git a/.travis.yml b/.travis.yml
index b72bae5..9b09564 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ before_install:
   - gem update --system
   - rvm @global do gem uninstall bundler -a -x
   - rvm @global do gem install bundler -v 1.13.7
-script: 'bundle exec rake test:coverage --trace && bundle exec rubocop'
+script: 'bundle exec rake spec:coverage --trace && bundle exec rubocop'
 rvm:
   - 2.3.3
   - 2.4.0
diff --git a/Rakefile b/Rakefile
index 9e6597c..e1ddb5f 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,17 +1,25 @@
 require 'rake'
-require 'rake/testtask'
 require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
 
+require 'rake/testtask'
 Rake::TestTask.new do |t|
   t.pattern = 'test/**/*_test.rb'
   t.libs.push 'test'
 end
 
-namespace :test do
+namespace :spec do
+  RSpec::Core::RakeTask.new(:unit) do |task|
+    file_list = FileList['spec/**/*_spec.rb']
+    file_list = file_list.exclude("spec/{integration,isolation}/**/*_spec.rb")
+
+    task.pattern = file_list
+  end
+
   task :coverage do
-    ENV['COVERALL'] = 'true'
-    Rake::Task['test'].invoke
+    ENV['COVERAGE'] = 'true'
+    Rake::Task['spec:unit'].invoke
   end
 end
 
-task default: :test
+task default: 'spec:unit'
diff --git a/hanami-mailer.gemspec b/hanami-mailer.gemspec
index c92874e..4ea9d9a 100644
--- a/hanami-mailer.gemspec
+++ b/hanami-mailer.gemspec
@@ -26,4 +26,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler', '~> 1.10'
   spec.add_development_dependency 'rake',     '~> 11'
   spec.add_development_dependency 'minitest', '~> 5.7'
+  spec.add_development_dependency 'rspec',    '~> 3.5'
 end
diff --git a/spec/hanami/mailer/configuration_spec.rb b/spec/hanami/mailer/configuration_spec.rb
new file mode 100644
index 0000000..d08a642
--- /dev/null
+++ b/spec/hanami/mailer/configuration_spec.rb
@@ -0,0 +1,194 @@
+RSpec.describe Hanami::Mailer::Configuration do
+  before do
+    @configuration = Hanami::Mailer::Configuration.new
+  end
+
+  describe '#root' do
+    describe 'when a value is given' do
+      describe 'and it is a string' do
+        it 'sets it as a Pathname' do
+          @configuration.root 'test'
+          expect(@configuration.root).to eq(Pathname.new('test').realpath)
+        end
+      end
+
+      describe 'and it is a pathname' do
+        it 'sets it' do
+          @configuration.root Pathname.new('test')
+          expect(@configuration.root).to eq(Pathname.new('test').realpath)
+        end
+      end
+
+      describe 'and it implements #to_pathname' do
+        before do
+          RootPath = Struct.new(:path) do
+            def to_pathname
+              Pathname(path)
+            end
+          end
+        end
+
+        after do
+          Object.send(:remove_const, :RootPath)
+        end
+
+        it 'sets the converted value' do
+          @configuration.root RootPath.new('test')
+          expect(@configuration.root).to eq(Pathname.new('test').realpath)
+        end
+      end
+
+      describe 'and it is an unexisting path' do
+        it 'raises an error' do
+          expect do
+            @configuration.root '/path/to/unknown'
+          end.to raise_error(Errno::ENOENT)
+        end
+      end
+    end
+
+    describe 'when a value is not given' do
+      it 'defaults to the current path' do
+        expect(@configuration.root).to eq(Pathname.new('.').realpath)
+      end
+    end
+  end
+
+  describe '#mailers' do
+    it 'defaults to an empty set' do
+      expect(@configuration.mailers).to be_empty
+    end
+
+    it 'allows to add mailers' do
+      @configuration.add_mailer(InvoiceMailer)
+      expect(@configuration.mailers).to include(InvoiceMailer)
+    end
+
+    it 'eliminates duplications' do
+      @configuration.add_mailer(RenderMailer)
+      @configuration.add_mailer(RenderMailer)
+
+      expect(@configuration.mailers.size).to eq(1)
+    end
+  end
+
+  describe '#prepare' do
+    before do
+      module FooRendering
+        def render
+          'foo'
+        end
+      end
+
+      class PrepareMailer
+      end
+    end
+
+    after do
+      Object.__send__(:remove_const, :FooRendering)
+      Object.__send__(:remove_const, :PrepareMailer)
+    end
+
+    it 'raises error in case of missing block' do
+      expect { @configuration.prepare }.to raise_error(ArgumentError, 'Please provide a block')
+    end
+  end
+
+  # describe '#reset!' do
+  #   before do
+  #     @configuration.root 'test'
+  #     @configuration.add_mailer(InvoiceMailer)
+
+  #     @configuration.reset!
+  #   end
+
+  #   it 'resets root' do
+  #     root = Pathname.new('.').realpath
+
+  #     @configuration.root.must_equal root
+  #     @configuration.mailers.must_be_empty
+  #   end
+
+  #   it "doesn't reset namespace" do
+  #     @configuration.namespace(InvoiceMailer)
+  #     @configuration.reset!
+
+  #     @configuration.namespace.must_equal(InvoiceMailer)
+  #   end
+
+  # end
+
+  describe '#load!' do
+    before do
+      @configuration.root 'test'
+      @configuration.load!
+    end
+
+    it 'loads root' do
+      root = Pathname.new('test').realpath
+      expect(@configuration.root).to eq(root)
+    end
+  end
+
+  describe '#delivery_method' do
+    describe 'when not previously set' do
+      before do
+        @configuration.reset!
+      end
+
+      it 'defaults to SMTP' do
+        expect(@configuration.delivery_method).to eq([:smtp, {}])
+      end
+    end
+
+    describe 'set with a symbol' do
+      before do
+        @configuration.delivery_method :exim, location: '/path/to/exim'
+      end
+
+      it 'saves the delivery method in the configuration' do
+        expect(@configuration.delivery_method).to eq([:exim, { location: '/path/to/exim' }])
+      end
+    end
+
+    describe 'set with a class' do
+      before do
+        @configuration.delivery_method MandrillDeliveryMethod,
+                                       username: 'mandrill-username', password: 'mandrill-api-key'
+      end
+
+      it 'saves the delivery method in the configuration' do
+        expect(@configuration.delivery_method).to eq([MandrillDeliveryMethod, username: 'mandrill-username', password: 'mandrill-api-key'])
+      end
+    end
+  end
+
+  describe '#default_charset' do
+    describe 'when not previously set' do
+      before do
+        @configuration.reset!
+      end
+
+      it 'defaults to UTF-8' do
+        expect(@configuration.default_charset).to eq('UTF-8')
+      end
+    end
+
+    describe 'when set' do
+      before do
+        @configuration.default_charset 'iso-8859-1'
+      end
+
+      it 'saves the delivery method in the configuration' do
+        expect(@configuration.default_charset).to eq('iso-8859-1')
+      end
+    end
+  end
+
+  describe '#prepare' do
+    it 'injects code in each mailer'
+    # it 'injects code in each mailer' do
+    #   InvoiceMailer.subject.must_equal 'default subject'
+    # end
+  end
+end
diff --git a/spec/hanami/mailer/delivery_spec.rb b/spec/hanami/mailer/delivery_spec.rb
new file mode 100644
index 0000000..3807819
--- /dev/null
+++ b/spec/hanami/mailer/delivery_spec.rb
@@ -0,0 +1,164 @@
+RSpec.describe Hanami::Mailer do
+  describe '.deliver' do
+    before do
+      Hanami::Mailer.deliveries.clear
+    end
+
+    it 'can deliver with specified charset' do
+      CharsetMailer.deliver(charset: charset = 'iso-2022-jp')
+
+      mail = Hanami::Mailer.deliveries.first
+      expect(mail.charset).to             eq(charset)
+      expect(mail.parts.first.charset).to eq(charset)
+    end
+
+    it "raises error when 'from' isn't specified" do
+      expect { MissingFromMailer.deliver }.to raise_error(Hanami::Mailer::MissingDeliveryDataError)
+    end
+
+    it "raises error when 'to' isn't specified" do
+      expect { MissingToMailer.deliver }.to raise_error(Hanami::Mailer::MissingDeliveryDataError)
+    end
+
+    describe 'test delivery with hardcoded values' do
+      before do
+        WelcomeMailer.deliver
+        @mail = Hanami::Mailer.deliveries.first
+      end
+
+      after do
+        Hanami::Mailer.deliveries.clear
+      end
+
+      it 'delivers the mail' do
+        expect(Hanami::Mailer.deliveries.length).to eq(1)
+      end
+
+      it 'sends the correct information' do
+        expect(@mail.from).to    eq(['noreply@sender.com'])
+        expect(@mail.to).to      eq(['noreply@recipient.com', 'owner@recipient.com'])
+        expect(@mail.cc).to      eq(['cc@recipient.com'])
+        expect(@mail.bcc).to     eq(['bcc@recipient.com'])
+        expect(@mail.subject).to eq('Welcome')
+      end
+
+      it 'has the correct templates' do
+        expect(@mail.html_part.to_s).to include(%(template))
+        expect(@mail.text_part.to_s).to include(%(template))
+      end
+
+      it 'interprets the prepare statement' do
+        attachment = @mail.attachments['invoice.pdf']
+
+        expect(attachment).to be_kind_of(Mail::Part)
+
+        expect(attachment).to be_attachment
+        expect(attachment).to_not be_inline
+        expect(attachment).to_not be_multipart
+
+        expect(attachment.filename).to eq('invoice.pdf')
+
+        expect(attachment.content_type).to match('application/pdf')
+        expect(attachment.content_type).to match('filename=invoice.pdf')
+      end
+    end
+
+    describe 'test delivery with methods' do
+      before do
+        @user = User.new('Name', 'student@deigirls.com')
+        MethodMailer.deliver(user: @user)
+
+        @mail = Hanami::Mailer.deliveries.first
+      end
+
+      after do
+        Hanami::Mailer.deliveries.clear
+      end
+
+      it 'delivers the mail' do
+        expect(Hanami::Mailer.deliveries.length).to eq(1)
+      end
+
+      it 'sends the correct information' do
+        expect(@mail.from).to    eq(["hello-#{@user.name.downcase}@example.com"])
+        expect(@mail.to).to      eq([@user.email])
+        expect(@mail.subject).to eq("Hello, #{@user.name}")
+      end
+    end
+
+    describe 'multipart' do
+      after do
+        Hanami::Mailer.deliveries.clear
+      end
+
+      it 'delivers all the parts by default' do
+        WelcomeMailer.deliver
+
+        mail = Hanami::Mailer.deliveries.first
+        body = mail.body.encoded
+
+        expect(body).to include(%(<h1>Hello World!</h1>))
+        expect(body).to include(%(This is a txt template))
+      end
+
+      it 'can deliver only the text part' do
+        WelcomeMailer.deliver(format: :txt)
+
+        mail = Hanami::Mailer.deliveries.first
+        body = mail.body.encoded
+
+        expect(body).to_not include(%(<h1>Hello World!</h1>))
+        expect(body).to     include(%(This is a txt template))
+      end
+
+      it 'can deliver only the html part' do
+        WelcomeMailer.deliver(format: :html)
+
+        mail = Hanami::Mailer.deliveries.first
+        body = mail.body.encoded
+
+        expect(body).to     include(%(<h1>Hello World!</h1>))
+        expect(body).to_not include(%(This is a txt template))
+      end
+    end
+
+    describe 'custom delivery' do
+      before do
+        @options = options = { deliveries: [] }
+
+        # Hanami::Mailer.reset!
+        # Hanami::Mailer.configure do
+        #   delivery_method MandrillDeliveryMethod, options
+        # end.load!
+
+        WelcomeMailer.deliver
+
+        @mail = options.fetch(:deliveries).first
+      end
+
+      it 'delivers the mail'
+      # it 'delivers the mail' do
+      #   @options.fetch(:deliveries).length.must_equal 1
+      # end
+
+      # it 'sends the correct information' do
+      #   @mail.from.must_equal ['noreply@sender.com']
+      #   @mail.to.must_equal ['noreply@recipient.com']
+      #   @mail.subject.must_equal "Welcome"
+      # end
+
+      # it 'has the correct templates' do
+      #   @mail.html_part.to_s.must_include %(template)
+      #   @mail.text_part.to_s.must_include %(template)
+      # end
+
+      # it 'interprets the prepare statement' do
+      #   @mail.attachments['invoice.pdf'].wont_be_nil
+      # end
+
+      # it 'adds the attachment to the mail object' do
+      #   @mail.attachments['render_mailer.html.erb'].wont_be_nil
+      # end
+    end
+  end
+end
diff --git a/spec/hanami/mailer/dsl_spec.rb b/spec/hanami/mailer/dsl_spec.rb
new file mode 100644
index 0000000..c55b19c
--- /dev/null
+++ b/spec/hanami/mailer/dsl_spec.rb
@@ -0,0 +1,47 @@
+RSpec.describe Hanami::Mailer do
+  describe '.template' do
+    describe 'when no value is set' do
+      it 'returns the convention name' do
+        expect(RenderMailer.template).to eq('render_mailer')
+      end
+
+      it 'returns correct namespaced value' do
+        expect(Users::Welcome.template).to eq('users/welcome')
+      end
+    end
+
+    describe 'when a value is set' do
+      it 'returns that name' do
+        expect(InvoiceMailer.template).to eq('invoice')
+      end
+    end
+  end
+
+  describe '.templates' do
+    describe 'when no value is set' do
+      it 'returns a set of templates' do
+        template_formats = LazyMailer.templates.keys
+        expect(template_formats).to eq([:html, :txt])
+      end
+
+      it 'returns only the template for the given format' do
+        template = LazyMailer.templates(:txt)
+        expect(template).to be_kind_of(Hanami::Mailer::Template)
+        expect(template.file).to match(%r{spec/support/fixtures/templates/lazy_mailer.txt.erb\z})
+      end
+    end
+
+    describe 'when a value is set' do
+      it 'returns a set of templates' do
+        template_formats = InvoiceMailer.templates.keys
+        expect(template_formats).to eq([:html])
+      end
+
+      it 'returns only the template for the given format' do
+        template = InvoiceMailer.templates(:html)
+        expect(template).to be_kind_of(Hanami::Mailer::Template)
+        expect(template.file).to match(%r{spec/support/fixtures/templates/invoice.html.erb\z})
+      end
+    end
+  end
+end
diff --git a/spec/hanami/mailer/rendering_spec.rb b/spec/hanami/mailer/rendering_spec.rb
new file mode 100644
index 0000000..290dd88
--- /dev/null
+++ b/spec/hanami/mailer/rendering_spec.rb
@@ -0,0 +1,44 @@
+RSpec.describe Hanami::Mailer do
+  describe '#render' do
+    describe 'when template is explicitly declared' do
+      let(:mailer) { InvoiceMailer.new }
+
+      it 'renders the given template' do
+        expect(mailer.render(:html)).to include(%(<h1>Invoice template</h1>))
+      end
+    end
+
+    describe 'when template is implicitly declared' do
+      let(:mailer) { LazyMailer.new }
+
+      it 'looks for template with same name with inflected classname and render it' do
+        expect(mailer.render(:html)).to include(%(Hello World))
+        expect(mailer.render(:txt)).to include(%(This is a txt template))
+      end
+    end
+
+    describe 'when mailer defines context' do
+      let(:mailer) { WelcomeMailer.new }
+
+      it 'renders template with defined context' do
+        expect(mailer.render(:txt)).to include(%(Ahoy))
+      end
+    end
+
+    describe 'when locals are parsed in' do
+      let(:mailer) { RenderMailer.new(user: User.new('Luca')) }
+
+      it 'renders template with parsed locals' do
+        expect(mailer.render(:html)).to include(%(Luca))
+      end
+    end
+
+    describe 'with HAML template engine' do
+      let(:mailer) { TemplateEngineMailer.new(user: User.new('Luca')) }
+
+      it 'renders template with parsed locals' do
+        expect(mailer.render(:html)).to include(%(<h1>\n  Luca\n</h1>\n))
+      end
+    end
+  end
+end
diff --git a/spec/hanami/mailer/version_spec.rb b/spec/hanami/mailer/version_spec.rb
new file mode 100644
index 0000000..941bcab
--- /dev/null
+++ b/spec/hanami/mailer/version_spec.rb
@@ -0,0 +1,5 @@
+RSpec.describe Hanami::Mailer::VERSION do
+  it "returns current version" do
+    expect(Hanami::Mailer::VERSION).to eq("1.0.0.beta2")
+  end
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 0000000..6ddae0f
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,61 @@
+if ENV['COVERALL']
+  require 'coveralls'
+  Coveralls.wear!
+end
+
+require 'hanami/utils'
+
+RSpec.configure do |config|
+  config.expect_with :rspec do |expectations|
+    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
+  end
+
+  config.mock_with :rspec do |mocks|
+    mocks.verify_partial_doubles = true
+  end
+
+  config.shared_context_metadata_behavior = :apply_to_host_groups
+
+  config.filter_run_when_matching :focus
+  config.disable_monkey_patching!
+
+  config.warnings = true
+
+  config.default_formatter = 'doc' if config.files_to_run.one?
+
+  config.profile_examples = 10
+
+  config.order = :random
+  Kernel.srand config.seed
+end
+
+$LOAD_PATH.unshift 'lib'
+require 'hanami/mailer'
+
+Hanami::Mailer.configure do
+  root Pathname.new __dir__ + '/support/fixtures/templates'
+end
+
+Hanami::Mailer.class_eval do
+  def self.reset!
+    self.configuration = configuration.duplicate
+    configuration.reset!
+  end
+end
+
+Hanami::Mailer::Dsl.class_eval do
+  def reset!
+    @templates = {}
+  end
+end
+
+Hanami::Utils.require!("spec/support")
+
+Hanami::Mailer.configure do
+  root __dir__ + '/support/fixtures'
+  delivery_method :test
+
+  prepare do
+    include DefaultSubject
+  end
+end.load!
diff --git a/spec/support/fixtures.rb b/spec/support/fixtures.rb
new file mode 100644
index 0000000..c7475b0
--- /dev/null
+++ b/spec/support/fixtures.rb
@@ -0,0 +1,105 @@
+class InvoiceMailer
+  include Hanami::Mailer
+  template 'invoice'
+end
+
+class RenderMailer
+  include Hanami::Mailer
+end
+
+class TemplateEngineMailer
+  include Hanami::Mailer
+end
+
+class CharsetMailer
+  include Hanami::Mailer
+
+  from    'noreply@example.com'
+  to      'user@example.com'
+  subject 'こんにちは'
+end
+
+class MissingFromMailer
+  include Hanami::Mailer
+  template 'missing'
+
+  to      'recipient@example.com'
+  subject 'Hello'
+end
+
+class MissingToMailer
+  include Hanami::Mailer
+  template 'missing'
+
+  from    'sender@example.com'
+  subject 'Hello'
+end
+
+User = Struct.new(:name, :email)
+
+class LazyMailer
+  include Hanami::Mailer
+end
+
+class MethodMailer
+  include Hanami::Mailer
+
+  from    :sender
+  to      :recipient
+  subject :greeting
+
+  def greeting
+    "Hello, #{user.name}"
+  end
+
+  private
+
+  def sender
+    "hello-#{user.name.downcase}@example.com"
+  end
+
+  def recipient
+    user.email
+  end
+end
+
+class WelcomeMailer
+  include Hanami::Mailer
+
+  from 'noreply@sender.com'
+  to   ['noreply@recipient.com', 'owner@recipient.com']
+  cc   'cc@recipient.com'
+  bcc  'bcc@recipient.com'
+
+  subject 'Welcome'
+
+  def greeting
+    'Ahoy'
+  end
+
+  def prepare
+    mail.attachments['invoice.pdf'] = '/path/to/invoice.pdf'
+  end
+end
+
+class MandrillDeliveryMethod
+  def initialize(options)
+    @options = options
+  end
+
+  def deliver!(mail)
+    @options.fetch(:deliveries).push(mail)
+  end
+end
+
+module Users
+  class Welcome
+    include Hanami::Mailer
+  end
+end
+
+module DefaultSubject
+  def self.included(mailer)
+    mailer.subject 'default subject'
+  end
+end
diff --git a/spec/support/fixtures/templates/charset_mailer.txt.erb b/spec/support/fixtures/templates/charset_mailer.txt.erb
new file mode 100644
index 0000000..92dea23
--- /dev/null
+++ b/spec/support/fixtures/templates/charset_mailer.txt.erb
@@ -0,0 +1 @@
+蓮
diff --git a/spec/support/fixtures/templates/invoice.html.erb b/spec/support/fixtures/templates/invoice.html.erb
new file mode 100644
index 0000000..06c5a5a
--- /dev/null
+++ b/spec/support/fixtures/templates/invoice.html.erb
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <h1>Invoice template</h1>
+  </body>
+</html>
diff --git a/spec/support/fixtures/templates/lazy_mailer.html.erb b/spec/support/fixtures/templates/lazy_mailer.html.erb
new file mode 100644
index 0000000..9605ceb
--- /dev/null
+++ b/spec/support/fixtures/templates/lazy_mailer.html.erb
@@ -0,0 +1,5 @@
+<html>
+  <body>
+    <h1>Hello World!</h1>
+  </body>
+</html>
diff --git a/spec/support/fixtures/templates/lazy_mailer.txt.erb b/spec/support/fixtures/templates/lazy_mailer.txt.erb
new file mode 100644
index 0000000..179d397
--- /dev/null
+++ b/spec/support/fixtures/templates/lazy_mailer.txt.erb
@@ -0,0 +1 @@
+This is a txt template
diff --git a/spec/support/fixtures/templates/method_mailer.txt.erb b/spec/support/fixtures/templates/method_mailer.txt.erb
new file mode 100644
index 0000000..9c4e98d
--- /dev/null
+++ b/spec/support/fixtures/templates/method_mailer.txt.erb
@@ -0,0 +1 @@
+<%= greeting %>
diff --git a/spec/support/fixtures/templates/missing.txt.erb b/spec/support/fixtures/templates/missing.txt.erb
new file mode 100644
index 0000000..b69a6b1
--- /dev/null
+++ b/spec/support/fixtures/templates/missing.txt.erb
@@ -0,0 +1 @@
+Missin'
diff --git a/spec/support/fixtures/templates/render_mailer.html.erb b/spec/support/fixtures/templates/render_mailer.html.erb
new file mode 100644
index 0000000..00db125
--- /dev/null
+++ b/spec/support/fixtures/templates/render_mailer.html.erb
@@ -0,0 +1 @@
+Hello <%= user.name %>,
diff --git a/spec/support/fixtures/templates/template_engine_mailer.html.haml b/spec/support/fixtures/templates/template_engine_mailer.html.haml
new file mode 100644
index 0000000..2680454
--- /dev/null
+++ b/spec/support/fixtures/templates/template_engine_mailer.html.haml
@@ -0,0 +1,2 @@
+%h1
+  = user.name
diff --git a/spec/support/fixtures/templates/welcome_mailer.html.erb b/spec/support/fixtures/templates/welcome_mailer.html.erb
new file mode 100644
index 0000000..cede28f
--- /dev/null
+++ b/spec/support/fixtures/templates/welcome_mailer.html.erb
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<html>
+  <body>
+    <h1>Hello World!</h1>
+    <%= greeting %>
+    <p>This is a html template</p>
+  </body>
+</html>
diff --git a/spec/support/fixtures/templates/welcome_mailer.txt.erb b/spec/support/fixtures/templates/welcome_mailer.txt.erb
new file mode 100644
index 0000000..51015e8
--- /dev/null
+++ b/spec/support/fixtures/templates/welcome_mailer.txt.erb
@@ -0,0 +1,2 @@
+This is a txt template
+<%= greeting %>