provide error mesages for all question types

app/views/quiz/_radio.html.erb

@@ -1,8 +1,8 @@
-<%  answer = answer.try(:answer) || answer %>
+<%  answer_string = answer.try(:answer) || answer %>
 <%= form.collection_radio_buttons(:answer, question.input_options, :to_s, :to_s, {}, {class: 'radio'}) do | option | %>
     <%
       option_id = "#{question.question_id}#{sanitize_to_id(option.value)}"
-      checked = answer == option.value ? 'checked' : ''
+      checked = answer_string == option.value ? 'checked' : ''
     %>
 
     <div class="form-group-multiples">

app/views/quiz/_radio_other.html.erb

@@ -1,13 +1,13 @@
 <%
-  answer = question.answer.nil? ? '' : Array(question.answer['options']).first
+  answer_string = question.answer.nil? ? '' : Array(question.answer['options']).first
   other_value = question.answer.nil? ? '' : question.answer['other']
 
   question.input_options.each do | option |
     option_id = "#{option.parameterize}_#{question.to_i}"
-    radio_html = {class: 'radio', id: option_id, data: {last: (answer == option) ? 'checked' : '' }}
+    radio_html = {class: 'radio', id: option_id, data: {last: (answer_string == option) ? 'checked' : '' }}
     %>
       <div class="form-group-multiples">
-        <%= radio_button_tag('answer[answer_hash][options][]', option, (answer == option), radio_html) %>
+        <%= radio_button_tag('answer[answer_hash][options][]', option, (answer_string == option), radio_html) %>
         <%= label_tag(option_id, option) %>
       </div>
     <%
@@ -16,10 +16,10 @@
   <div class="form-group-multiples">
     <%
       option_id = "other_#{question.to_i}"
-      radio_html = {class: 'radio', id: option_id, data: { last: answer }}
+      radio_html = {class: 'radio', id: option_id, data: { last: answer_string }}
       text_html = {class: 'input-other', id: "text_#{option_id}", data: { last: other_value }}
     %>
-    <%= radio_button_tag('answer[answer_hash][options][]', 'other', (answer == 'other'), radio_html) %>
+    <%= radio_button_tag('answer[answer_hash][options][]', 'other', (answer_string == 'other'), radio_html) %>
     <%= label_tag option_id, 'Other' %>
     <%= text_field_tag 'answer[answer_hash][other]', other_value, text_html %>
   </div>

app/views/quiz/_text.html.erb

@@ -1,7 +1,7 @@
-<% answer = answer.respond_to?(:answer) ? answer.answer : answer %>
+<% answer_string = answer.respond_to?(:answer) ? answer.answer : answer %>
 
 <label for="answer_answer">Enter answer here</label>
-<%= text_area_tag 'answer[answer]', answer, {rows: 10, data: { last: answer } } %>
+<%= text_area_tag 'answer[answer]', answer_string, {rows: 10, data: { last: answer_string } } %>
 
 <div class="chars <%= params[:action] == 'summary' ? 'hidden' : '' %>">Characters remaining: <span></span></div>
 

test/integration/question_error_test.rb

@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+require 'test_helper'
+
+class QuestionErrorTest < ActionDispatch::IntegrationTest
+  test "testing full quiz for question error messages" do
+    auth_candidate candidates(:gillian)
+
+    # text
+    post post_answer_path, params: { answer: { question_id: questions(:fed1).id } }
+    assert_select 'h2', questions(:fed1).question
+    assert_select '.error', /an answer/
+    post post_answer_path, params: { answer: { question_id: questions(:fed1).id, answer: "fooBarBaz" } }
+
+    # checkbox
+    post post_answer_path, params: { answer: { question_id: questions(:fed2).id } }
+    assert_select 'h2', questions(:fed2).question
+    assert_select '.error', /an answer/
+    post post_answer_path, params: { answer: { question_id: questions(:fed2).id, answer: "fooBarBaz" } }
+
+    # live_code
+    post post_answer_path, params: { answer: { question_id: questions(:fed3).id } }
+    assert_select 'h2', questions(:fed3).question
+    assert_select '.error', /comments or code/
+    post post_answer_path, params: { answer: {
+      question_id: questions(:fed3).id, answer_hash: { html: "fooBarBaz" }
+    } }
+
+    # text
+    post post_answer_path, params: { answer: { question_id: questions(:fed4).id, answer: "fooBarBaz" } }
+
+    # radio
+    post post_answer_path, params: { answer: { question_id: questions(:fed5).id } }
+    assert_select 'h2', questions(:fed5).question
+    assert_select '.error', /an answer/
+    post post_answer_path, params: { answer: { question_id: questions(:fed5).id, answer: "fooBarBaz" } }
+
+    # text
+    post post_answer_path, params: { answer: { question_id: questions(:fed6).id, answer: "fooBarBaz" } }
+
+    # live_code
+    post post_answer_path, params: { answer: {
+      question_id: questions(:fed7).id, answer_hash: { html: "fooBarBaz" }
+    } }
+
+    # radio_other
+    post post_answer_path, params: { answer: { question_id: questions(:fed8).id } }
+    assert_select 'h2', questions(:fed8).question
+    assert_select '.error', /an answer/
+    post post_answer_path, params: { answer: {
+      question_id: questions(:fed8).id, answer_hash: { options: "fooBarBaz" }
+    } }
+
+    # checkbox_other
+    post post_answer_path, params: { answer: { question_id: questions(:fed9).id } }
+    assert_select 'h2', questions(:fed9).question
+    assert_select '.error', /an answer/
+    post post_answer_path, params: { answer: {
+      question_id: questions(:fed9).id, answer_hash: { options: "fooBarBaz" }
+    } }
+
+    # checkbox
+    post post_answer_path, params: { answer: { question_id: questions(:fed10).id, answer: "fooBarBaz" } }
+
+    # checkbox
+    post post_answer_path, params: { answer: { question_id: questions(:fed11).id, answer: "fooBarBaz" } }
+
+    # checkbox
+    post post_answer_path, params: { answer: { question_id: questions(:fed12).id, answer: "fooBarBaz" } }
+  end
+end