Generator: Mailer and styles (#84)

Testing only mailer wasn't working from the default rails generators, so
this PR adds mailer also.

Also, fixes pointer on the submit button and small fix on controller h1
style to match the one from the scaffold index.

Author: dixpac

lib/generators/tailwindcss/controller/templates/view.html.erb.tt

@@ -1,4 +1,4 @@
 <div>
-  <h1 class="text-xl font-bold"><%= class_name %>#<%= @action %></h1>
+  <h1 class="text-lg font-bold text-4xl"><%= class_name %>#<%= @action %></h1>
   <p>Find me in <%= @path %></p>
 <div>

lib/generators/tailwindcss/mailer/mailer_generator.rb

@@ -0,0 +1,9 @@
+require "rails/generators/erb/mailer/mailer_generator"
+
+module Tailwindcss
+  module Generators
+    class MailerGenerator < Erb::Generators::MailerGenerator
+      source_root File.expand_path("../templates", __FILE__)
+    end
+  end
+end

lib/generators/tailwindcss/mailer/templates/view.html.erb.tt

@@ -0,0 +1,5 @@
+<h1><%= class_name %>#<%= @action %></h1>
+
+<p>
+  <%%= @greeting %>, find me in <%= @path %>
+</p>

lib/generators/tailwindcss/mailer/templates/view.text.erb.tt

@@ -0,0 +1,3 @@
+<%= class_name %>#<%= @action %>
+
+<%%= @greeting %>, find me in <%= @path %>

lib/generators/tailwindcss/scaffold/templates/_form.html.erb.tt

@@ -38,6 +38,6 @@
 
 <% end -%>
   <div class="inline">
-    <%%= form.submit class: "rounded-lg py-3 px-5 bg-blue-600 text-white inline-block font-medium" %>
+    <%%= form.submit class: "rounded-lg py-3 px-5 bg-blue-600 text-white inline-block font-medium cursor-pointer" %>
   </div>
 <%% end %>

test/lib/generators/tailwindcss/mailer_generator_test.rb

@@ -0,0 +1,31 @@
+require "test_helper"
+require "rails/generators/mailer/mailer_generator"
+require "generators/tailwindcss/mailer/mailer_generator"
+
+class Tailwindcss::Generators::MailerGeneratorTest < Rails::Generators::TestCase
+  GENERATION_PATH = File.expand_path("../mailer_tmp", File.dirname(__FILE__))
+
+  tests Rails::Generators::MailerGenerator
+  destination GENERATION_PATH
+
+  arguments %w(Notifications invoice)
+
+   Minitest.after_run do
+     FileUtils.rm_rf GENERATION_PATH
+   end
+
+  test "generates correct mailer view templates" do
+    run_generator
+
+    assert_file "app/views/notifications_mailer/invoice.html.erb" do |view|
+      assert_match %r(app/views/notifications_mailer/invoice\.html\.erb), view
+      assert_match(/\= @greeting/, view)
+    end
+
+    assert_file "app/views/notifications_mailer/invoice.text.erb" do |view|
+      assert_match %r(app/views/notifications_mailer/invoice\.text\.erb), view
+      assert_match(/\= @greeting/, view)
+    end
+  end
+end
+