Add a new QA::ElementWithPattern cop

This cop forbids the use of `element :foo, 'pattern'` and
`element :bar, /pattern/` in QA files.

Signed-off-by: Rémy Coutable <remy@rymai.me>

1 files changed, 11 insertions, 0 deletions

diff --git a/rubocop/qa_helpers.rb b/rubocop/qa_helpers.rb
new file mode 100644
index 00000000000..f4adf7f4e9f
--- /dev/null
+++ b/rubocop/qa_helpers.rb
@@ -0,0 +1,11 @@
+module RuboCop
+  # Module containing helper methods for writing QA cops.
+  module QAHelpers
+    # Returns true if the given node originated from the qa/ directory.
+    def in_qa_file?(node)
+      path = node.location.expression.source_buffer.name
+
+      path.start_with?(File.join(Dir.pwd, 'qa'))
+    end
+  end
+end