Add support for 'button' elements in forms, and selecting

them by inner text

lib/webrat/field.rb

@@ -101,8 +101,12 @@ module Webrat
   
   class ButtonField < Field
 
+    def matches_text?(text)
+      @element.innerHTML =~ /#{Regexp.escape(text.to_s)}/i
+    end
+
     def matches_value?(value)
-      @element["value"] =~ /^\W*#{Regexp.escape(value.to_s)}/i
+      @element["value"] =~ /^\W*#{Regexp.escape(value.to_s)}/i || matches_text?(value)
     end
 
     def to_param

lib/webrat/form.rb

@@ -45,7 +45,7 @@ module Webrat
       
       @fields = []
       
-      (@element / "input, textarea, select").each do |field_element|
+      (@element / "button, input, textarea, select").each do |field_element|
         @fields << Field.class_for_element(field_element).new(self, field_element)
       end
       

test/clicks_button_test.rb

@@ -332,4 +332,26 @@ class ClicksButtonTest < Test::Unit::TestCase
     @session.expects(:get_via_redirect).with("/login", "user" => {"email" => ""})
     @session.clicks_button
   end
+
+  def test_should_recognize_button_tags
+    @response.stubs(:body).returns(<<-EOS)
+      <form method="get" action="/login">
+        <input id="user_email" name="user[email]" value="" type="text" />
+        <button type="submit" />
+      </form>
+    EOS
+    @session.expects(:get_via_redirect).with("/login", "user" => {"email" => ""})
+    @session.clicks_button
+  end
+
+  def test_should_recognize_button_tags_by_content
+    @response.stubs(:body).returns(<<-EOS)
+      <form method="get" action="/login">
+        <input id="user_email" name="user[email]" value="" type="text" />
+        <button type="submit">Login</button>
+      </form>
+    EOS
+    @session.expects(:get_via_redirect).with("/login", "user" => {"email" => ""})
+    @session.clicks_button "Login"
+  end
 end