Adding an documentation example and a test to button_to with path

I did not see in the docs that `button_to` supports not only URLs but paths as well. I documented this functionality with a unit tests and added an example to the docs as well.

1 files changed, 7 insertions, 0 deletions

diff --git a/actionview/test/template/url_helper_test.rb b/actionview/test/template/url_helper_test.rb
index deba33510a..7e978e15d2 100644
--- a/actionview/test/template/url_helper_test.rb
+++ b/actionview/test/template/url_helper_test.rb
@@ -56,6 +56,13 @@ class UrlHelperTest < ActiveSupport::TestCase
     assert_dom_equal %{<form method="post" action="http://www.example.com" class="button_to"><div><input type="submit" value="Hello" /></div></form>}, button_to("Hello", "http://www.example.com")
   end
 
+  def test_button_to_with_path
+    assert_dom_equal(
+      %{<form method="post" action="/article/Hello" class="button_to"><div><input type="submit" value="Hello" /></div></form>},
+      button_to("Hello", article_path("Hello".html_safe))
+    )
+  end
+
   def test_button_to_with_straight_url_and_request_forgery
     self.request_forgery = true