diff --git a/test/action_view/cases/test_form_for_helpers.rb b/test/action_view/cases/test_form_for_helpers.rb
index 7aa23e9b5..ae76d9105 100644
--- a/test/action_view/cases/test_form_for_helpers.rb
+++ b/test/action_view/cases/test_form_for_helpers.rb
@@ -433,48 +433,39 @@ def test_time_zone_select_with_validate_options
     end
 
     def test_date_select
-      input_html = ''
-
       form_for(@post, validate: true) do |f|
-        input_html = f.date_select(:cost)
-        concat input_html
+        concat f.date_select(:cost)
       end
 
       validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
       expected = whole_form_for('/posts', 'new_post', 'new_post', validators: validators) do
-        input_html
+        date_select :post, :cost
       end
 
       assert_dom_equal expected, output_buffer
     end
 
     def test_time_select
-      input_html = ''
-
       form_for(@post, validate: true) do |f|
-        input_html = f.time_select(:cost)
-        concat input_html
+        concat f.time_select(:cost)
       end
 
       validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
       expected = whole_form_for('/posts', 'new_post', 'new_post', validators: validators) do
-        input_html
+        time_select :post, :cost
       end
 
       assert_dom_equal expected, output_buffer
     end
 
     def test_datetime_select
-      input_html = ''
-
       form_for(@post, validate: true) do |f|
-        input_html = f.datetime_select(:cost)
-        concat input_html
+        concat f.datetime_select(:cost)
       end
 
       validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
       expected = whole_form_for('/posts', 'new_post', 'new_post', validators: validators) do
-        input_html
+        datetime_select :post, :cost
       end
 
       assert_dom_equal expected, output_buffer
diff --git a/test/action_view/cases/test_form_with_helpers.rb b/test/action_view/cases/test_form_with_helpers.rb
index f50824393..edafdc62f 100644
--- a/test/action_view/cases/test_form_with_helpers.rb
+++ b/test/action_view/cases/test_form_with_helpers.rb
@@ -463,48 +463,39 @@ def test_form_with_time_zone_select_with_validate_options
       end
 
       def test_date_select
-        input_html = ''
-
         form_with(model: @post, validate: true) do |f|
-          input_html = f.date_select(:cost)
-          concat input_html
+          concat f.date_select(:cost)
         end
 
         validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
         expected = whole_form_with('/posts', validators: validators) do
-          input_html
+          date_select :post, :cost
         end
 
         assert_dom_equal expected, output_buffer
       end
 
       def test_time_select
-        input_html = ''
-
         form_with(model: @post, validate: true) do |f|
-          input_html = f.time_select(:cost)
-          concat input_html
+          concat f.time_select(:cost)
         end
 
         validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
         expected = whole_form_with('/posts', validators: validators) do
-          input_html
+          time_select :post, :cost
         end
 
         assert_dom_equal expected, output_buffer
       end
 
       def test_datetime_select
-        input_html = ''
-
         form_with(model: @post, validate: true) do |f|
-          input_html = f.datetime_select(:cost)
-          concat input_html
+          concat f.datetime_select(:cost)
         end
 
         validators = { 'post[cost]' => { presence: [{ message: "can't be blank" }] } }
         expected = whole_form_with('/posts', validators: validators) do
-          input_html
+          datetime_select :post, :cost
         end
 
         assert_dom_equal expected, output_buffer