class RuboCop::Cop::Minitest::TestFileName


test_my_class.rb
my_class_test.rb
# good
my_class.rb
# bad
@example
Not following this convention may result in tests not being run.
Files which define classes having names ending with ‘Test` are checked.
Checks if test file names start with `test_` or end with `_test.rb`.

def on_new_investigation 

def on_new_investigation
  return unless (ast = processed_source.ast)
  return unless test_file?(ast)
  add_global_offense(MSG) unless valid_file_name?
end

def test_file?(node) 

def test_file?(node)
  return true if node.class_type? && test_class?(node)
  node.each_descendant(:class).any? { |class_node| test_class?(class_node) }
end

def valid_file_name? 

def valid_file_name?
  basename = File.basename(processed_source.file_path)
  basename.start_with?('test_') || basename.end_with?('_test.rb')
end