Fixed bug creating invalid HTML in select options

When a select tag is created for a field with errors, and that select
tag has :prompt or :include_blank options, then the inserted first
option will errantly have a <div class="field_with_errors"> wrapping
it.

See https://github.com/rails/rails/issues/7017

1 files changed, 13 insertions, 0 deletions

diff --git a/actionpack/test/template/active_model_helper_test.rb b/actionpack/test/template/active_model_helper_test.rb
index 66a7bce71e..058db29645 100644
--- a/actionpack/test/template/active_model_helper_test.rb
+++ b/actionpack/test/template/active_model_helper_test.rb
@@ -41,6 +41,19 @@ class ActiveModelHelperTest < ActionView::TestCase
     )
   end
 
+  def test_select_with_errors
+    assert_dom_equal(
+      %(<div class="field_with_errors"><select name="post[author_name]" id="post_author_name"><option value="a">a</option>\n<option value="b">b</option></select></div>),
+      select("post", "author_name", [:a, :b])
+    )
+  end
+
+  def test_select_with_errors_and_blank_option
+    expected_dom = %(<div class="field_with_errors"><select name="post[author_name]" id="post_author_name"><option value="">Choose one...</option>\n<option value="a">a</option>\n<option value="b">b</option></select></div>)
+    assert_dom_equal(expected_dom, select("post", "author_name", [:a, :b], :include_blank => 'Choose one...'))
+    assert_dom_equal(expected_dom, select("post", "author_name", [:a, :b], :prompt => 'Choose one...'))
+  end
+
   def test_date_select_with_errors
     assert_dom_equal(
       %(<div class="field_with_errors"><select id="post_updated_at_1i" name="post[updated_at(1i)]">\n<option selected="selected" value="2004">2004</option>\n<option value="2005">2005</option>\n</select>\n<input id="post_updated_at_2i" name="post[updated_at(2i)]" type="hidden" value="6" />\n<input id="post_updated_at_3i" name="post[updated_at(3i)]" type="hidden" value="15" />\n</div>),