Complete advanced testing setup

Author: khin-alu

Guardfile

@@ -0,0 +1,80 @@
+# This is the Guardfile for the 8th edition of the Rails Tutorial.
+# For the 7th edition, see here:
+# https://github.com/learnenough/sample_app_7th_ed/blob/main/Guardfile
+
+require "active_support/inflector"
+# Defines the matching rules for Guard.
+guard :minitest, all_on_start: false do
+  watch(%r{^test/(.*)/?(.*)_test\.rb$})
+  watch("test/test_helper.rb") { "test" }
+  watch("config/routes.rb") { interface_tests }
+  watch(%r{app/views/layouts/*}) { interface_tests }
+  watch(%r{^app/models/(.*?)\.rb$}) do |matches|
+    ["test/models/#{matches[1]}_test.rb",
+     "test/integration/microposts_interface_test.rb"]
+  end
+  watch(%r{^test/fixtures/(.*?)\.yml$}) do |matches|
+    "test/models/#{matches[1].singularize}_test.rb"
+  end
+  watch(%r{^app/mailers/(.*?)\.rb$}) do |matches|
+    "test/mailers/#{matches[1]}_test.rb"
+  end
+  watch(%r{^app/views/(.*)_mailer/.*$}) do |matches|
+    "test/mailers/#{matches[1]}_mailer_test.rb"
+  end
+  watch(%r{^app/controllers/(.*?)_controller\.rb$}) do |matches|
+    resource_tests(matches[1])
+  end
+  watch(%r{^app/views/([^/]*?)/.*\.html\.erb$}) do |matches|
+    ["test/controllers/#{matches[1]}_controller_test.rb"] +
+    integration_tests(matches[1])
+  end
+  watch(%r{^app/helpers/(.*?)_helper\.rb$}) do |matches|
+    integration_tests(matches[1])
+  end
+  watch("app/views/layouts/application.html.erb") do
+    "test/integration/site_layout_test.rb"
+  end
+  watch("app/helpers/sessions_helper.rb") do
+    integration_tests << "test/helpers/sessions_helper_test.rb"
+  end
+  watch("app/controllers/sessions_controller.rb") do
+    ["test/controllers/sessions_controller_test.rb",
+     "test/integration/users_login_test.rb"]
+  end
+  watch("app/controllers/account_activations_controller.rb") do
+    "test/integration/users_signup_test.rb"
+  end
+  watch(%r{app/views/users/*}) do
+    resource_tests("users") +
+    ["test/integration/microposts_interface_test.rb"]
+  end
+  watch("app/controllers/relationships_controller.rb") do
+    ["test/controllers/relationships_controller_test.rb",
+     "test/integration/following_test.rb"]
+  end
+end
+
+# Returns the integration tests corresponding to the given resource.
+def integration_tests(resource = :all)
+  if resource == :all
+    Dir["test/integration/*"]
+  else
+    Dir["test/integration/#{resource}_*.rb"]
+  end
+end
+
+# Returns all tests that hit the interface.
+def interface_tests
+  integration_tests << "test/controllers"
+end
+
+# Returns the controller tests corresponding to the given resource.
+def controller_test(resource)
+  "test/controllers/#{resource}_controller_test.rb"
+end
+
+# Returns all tests for the given resource.
+def resource_tests(resource)
+  integration_tests(resource) << controller_test(resource)
+end

test/test_helper.rb

@@ -1,6 +1,8 @@
 ENV["RAILS_ENV"] ||= "test"
 require_relative "../config/environment"
 require "rails/test_help"
+require "minitest/reporters"
+Minitest::Reporters.use!
 
 module ActiveSupport
   class TestCase