Merge pull request #31786 from composerinteralia/respond-to-tests

Use respond_to test helpers

1 files changed, 3 insertions, 3 deletions

diff --git a/railties/test/application/mailer_previews_test.rb b/railties/test/application/mailer_previews_test.rb
index 288968484c..ba186bda44 100644
--- a/railties/test/application/mailer_previews_test.rb
+++ b/railties/test/application/mailer_previews_test.rb
@@ -296,7 +296,7 @@ module ApplicationTests
     test "mailer preview not found" do
       app("development")
       get "/rails/mailers/notifier"
-      assert last_response.not_found?
+      assert_predicate last_response, :not_found?
       assert_match "Mailer preview 'notifier' not found", last_response.body
     end
 
@@ -326,7 +326,7 @@ module ApplicationTests
       app("development")
 
       get "/rails/mailers/notifier/bar"
-      assert last_response.not_found?
+      assert_predicate last_response, :not_found?
       assert_match "Email 'bar' not found in NotifierPreview", last_response.body
     end
 
@@ -382,7 +382,7 @@ module ApplicationTests
       app("development")
 
       get "/rails/mailers/notifier/foo?part=text%2Fhtml"
-      assert last_response.not_found?
+      assert_predicate last_response, :not_found?
       assert_match "Email part 'text/html' not found in NotifierPreview#foo", last_response.body
     end