fix text length validation

completes #64

app/assets/javascripts/textarea-limit.js

@@ -1,28 +1,24 @@
-$(document).ready(function() {
-  setTextAreaLimit();
-
-  function setTextAreaLimit() {
-    $.fn.extend({
-      limiter: function(limit, elem) {
-        $('textarea').on("keyup focus show", function() {
-          setCount(this, elem);
+$.fn.extend({
+  characterLimiter: function(limit, $label) {
+    $(this).on("keyup focus show", function() {
+      setCount(this, $label);
     });
 
-        function setCount(src, elem) {
+    // TODO: append label container after $this, instead of hard codeing
+    function setCount(src, $label) {
       if(src !== undefined) {
         var chars = src.value.length;
-            if (chars > limit) {
+        if (chars >= limit) {
           src.value = src.value.substr(0, limit);
           chars = limit;
         }
-            elem.html(limit - chars);
+        $label.html(limit - chars);
       }
     }
-        setCount($(this)[0], elem);
-      }
-    });
-
-    var elem = $(".chars span");
-    $('textarea').limiter(1000, elem);
+    setCount($(this)[0], $label);
   }
 });
+
+$(document).ready(function() {
+  $('textarea').characterLimiter(1000, $(".chars span"));
+});

app/validators/answer_format_validator.rb

@@ -6,7 +6,7 @@ class AnswerFormatValidator < ActiveModel::EachValidator
   private
 
     def text record, attribute, value
-      clean_val = value.to_s.strip
+      clean_val = value.to_s.strip.delete("\r")
       return if clean_val.length.between?(1, 1000)
 
       if clean_val.blank?

test/validators/answer_format_validator/text_test.rb

@@ -25,11 +25,24 @@ class AnswerFormatValidatorTest < ActiveSupport::TestCase
     assert_match(/enter.*answer/, obj.errors.messages[:answer][0])
   end
 
-  test "text should FAIL with more than 1000 charactures" do
+  test "text should PASS with 999 character" do
     obj = AnswerValidatable.new('text')
-    obj.answer = SecureRandom.urlsafe_base64(1001)
+    obj.answer = long_string_with_returns
+
+    assert obj.valid?
+    assert obj.errors.messages.empty?
+  end
+
+  test "text should FAIL with more than 1000 character" do
+    obj = AnswerValidatable.new('text')
+    obj.answer = long_string_with_returns + " - to long now "
 
     refute obj.valid?
     assert_match(/char.*limit.*1000.$/, obj.errors.messages[:answer][0])
   end
+
+  def long_string_with_returns
+    # returns 999 chars, after \r is stripped.
+    "Some rando input\r\n\rYo. Making this up.\r\n" * 27
+  end
 end