1 files changed, 41 insertions, 0 deletions
diff --git a/Library/Homebrew/rubocops/class_cop.rb b/Library/Homebrew/rubocops/class_cop.rb
new file mode 100644
index 000000000..dad81abfc
--- /dev/null
+++ b/Library/Homebrew/rubocops/class_cop.rb
@@ -0,0 +1,41 @@
+require_relative "./extend/formula_cop"
+
+module RuboCop
+  module Cop
+    module FormulaAudit
+      class ClassName < FormulaCop
+        DEPRECATED_CLASSES = %w[
+          GithubGistFormula
+          ScriptFileFormula
+          AmazonWebServicesFormula
+        ].freeze
+
+        def audit_formula(_node, _class_node, parent_class_node, _body_node)
+          parent_class = class_name(parent_class_node)
+          return unless DEPRECATED_CLASSES.include?(parent_class)
+          problem "#{parent_class} is deprecated, use Formula instead"
+        end
+
+        private
+
+        def autocorrect(node)
+          lambda do |corrector|
+            corrector.replace(node.source_range, "Formula")
+          end
+        end
+      end
+    end
+
+    module FormulaAuditStrict
+      # - `test do ..end` should be defined in the formula
+      class Test < FormulaCop
+        MSG = "A `test do` test block should be added".freeze
+
+        def audit_formula(_node, _class_node, _parent_class_node, body_node)
+          return if find_block(body_node, :test)
+          problem MSG
+        end
+      end
+    end
+  end
+end