Add test assertion helpers

Adds assertions that are not part of Capybara but may be useful to Rails
users writing system tests.

1 files changed, 32 insertions, 0 deletions

diff --git a/actionpack/lib/system_testing/test_helpers/assertions.rb b/actionpack/lib/system_testing/test_helpers/assertions.rb
new file mode 100644
index 0000000000..865b5e59db
--- /dev/null
+++ b/actionpack/lib/system_testing/test_helpers/assertions.rb
@@ -0,0 +1,32 @@
+module SystemTesting
+  module TestHelpers
+    module Assertions
+      def assert_all_of_selectors(*items)
+        options = items.extract_options!
+        type = type_for_selector(items)
+
+        items.each do |item|
+          assert_selector type, item, options
+        end
+      end
+
+      def assert_none_of_selectors(*items)
+        options = items.extract_options!
+        type = type_for_selector(items)
+
+        items.each do |item|
+          assert_no_selector type, item, options
+        end
+      end
+
+      private
+        def type_for_selector(*items)
+          if items.first.is_a?(Symbol)
+            items.shift
+          else
+            Capybara.default_selector
+          end
+        end
+    end
+  end
+end