Merge pull request #21176 from y-yagi/fix_scaffold_tests_inside_api_engine

make generated scaffold functional tests work inside API engines

railties/lib/rails/generators/test_unit/scaffold/templates/api_functional_test.rb

@@ -3,7 +3,10 @@
 <% module_namespacing do -%>
 class <%= controller_class_name %>ControllerTest < ActionController::TestCase
   setup do
-    @<%= singular_table_name %> = <%= table_name %>(:one)
+    @<%= singular_table_name %> = <%= fixture_name %>(:one)
+<% if mountable_engine? -%>
+    @routes = Engine.routes
+<% end -%>
   end
 
   test "should get index" do

railties/test/generators/scaffold_generator_test.rb

@@ -505,4 +505,32 @@ def test_scaffold_tests_pass_by_default_inside_full_engine
       assert_match(/8 runs, 13 assertions, 0 failures, 0 errors/, `bin/rails test 2>&1`)
     end
   end
+
+  def test_scaffold_tests_pass_by_default_inside_api_mountable_engine
+    Dir.chdir(destination_root) { `bundle exec rails plugin new bukkits --mountable --api` }
+
+    engine_path = File.join(destination_root, "bukkits")
+
+    Dir.chdir(engine_path) do
+      quietly do
+        `bin/rails g scaffold User name:string age:integer;
+        bundle exec rake db:migrate`
+      end
+      assert_match(/6 runs, 8 assertions, 0 failures, 0 errors/, `bin/rails test 2>&1`)
+    end
+  end
+
+  def test_scaffold_tests_pass_by_default_inside_api_full_engine
+    Dir.chdir(destination_root) { `bundle exec rails plugin new bukkits --full --api` }
+
+    engine_path = File.join(destination_root, "bukkits")
+
+    Dir.chdir(engine_path) do
+      quietly do
+        `bin/rails g scaffold User name:string age:integer;
+        bundle exec rake db:migrate`
+      end
+      assert_match(/6 runs, 8 assertions, 0 failures, 0 errors/, `bin/rails test 2>&1`)
+    end
+  end
 end