Fix false positive test pass in turbu spec

Author: ahangarha

spec/stimulus/turbo_spec.rb

@@ -63,19 +63,25 @@
       initial_comment_count = Comment.all.count
       fill_in text_field, with: comment.text
       click_button("Post")
+
+      expect(page).to have_text("Author: can't be blank")
       expect(Comment.all.count).to equal(initial_comment_count)
     end
 
     it "comment count remains the same when text field is empty" do
       initial_comment_count = Comment.all.count
       fill_in author_field, with: comment.author
       click_button("Post")
+
+      expect(page).to have_text("Text: can't be blank")
       expect(Comment.all.count).to equal(initial_comment_count)
     end
 
     it "comment count remains the same when both form fields are empty" do
       initial_comment_count = Comment.all.count
       click_button("Post")
+
+      expect(page).to have_text("Author: can't be blank")
       expect(Comment.all.count).to equal(initial_comment_count)
     end
   end