Stop adding actual dummy tests (they clutter up the real ones in a new app), just show how its done

railties/lib/rails/generators/rails/plugin_new/templates/test/integration/navigation_test.rb

@@ -5,9 +5,8 @@ class NavigationTest < ActionDispatch::IntegrationTest
   fixtures :all
 <% end -%>
 
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 end
 

railties/lib/rails/generators/test_unit/controller/templates/functional_test.rb

@@ -3,10 +3,9 @@ require 'test_helper'
 <% module_namespacing  do -%>
 class <%= class_name %>ControllerTest < ActionController::TestCase
 <% if  actions.empty? -%>
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 <% else -%>
 <% for  action in actions -%>
   test "should get <%= action %>" do

railties/lib/rails/generators/test_unit/integration/templates/integration_test.rb

@@ -3,8 +3,7 @@ require 'test_helper'
 class <%= class_name %>Test < ActionDispatch::IntegrationTest
   fixtures :all
 
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 end

railties/lib/rails/generators/test_unit/mailer/templates/functional_test.rb

@@ -13,10 +13,9 @@ class <%= class_name %>Test < ActionMailer::TestCase
 
 <% end -%>
 <% if actions.blank? -%>
-  # replace this with your real tests
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 <% end -%>
 end
 <% end -%>

railties/lib/rails/generators/test_unit/model/templates/unit_test.rb

@@ -2,9 +2,8 @@ require 'test_helper'
 
 <% module_namespacing  do -%>
 class <%= class_name %>Test < ActiveSupport::TestCase
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 end
 <% end  -%>

railties/lib/rails/generators/test_unit/observer/templates/unit_test.rb

@@ -2,9 +2,8 @@ require 'test_helper'
 
 <% module_namespacing  do -%>
 class <%= class_name %>ObserverTest < ActiveSupport::TestCase
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 end
 <% end  -%>

railties/lib/rails/generators/test_unit/plugin/templates/%file_name%_test.rb.tt

@@ -1,8 +1,7 @@
 require 'test_helper'
 
 class <%= class_name %>Test < ActiveSupport::TestCase
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
-  end
+  # test "the truth" do
+  #   assert true
+  # end
 end