1 files changed, 56 insertions, 0 deletions
diff --git a/qa/qa/resource/reusable_collection.rb b/qa/qa/resource/reusable_collection.rb
new file mode 100644
index 00000000000..1168b0091fc
--- /dev/null
+++ b/qa/qa/resource/reusable_collection.rb
@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+require 'singleton'
+
+module QA
+  module Resource
+    #
+    # This singleton class collects all reusable resources used by tests and allows operations to be performed on them
+    # all. For example, verifying their state after tests have run and might have changed them.
+    #
+    class ReusableCollection
+      include Singleton
+
+      attr_accessor :resource_classes
+
+      def initialize
+        @resource_classes = {}
+      end
+
+      # Yields each resource in the collection.
+      #
+      # @yieldparam [Symbol] reuse_as the name that identifies the resource instance.
+      # @yieldparam [QA::Resource] reuse_instance the resource.
+      def each_resource
+        resource_classes.each_value do |reuse_instances|
+          reuse_instances.each do |reuse_as, reuse_instance|
+            yield reuse_as, reuse_instance[:resource]
+          end
+        end
+      end
+
+      class << self
+        # Removes all created resources that are included in the collection.
+        def remove_all_via_api!
+          instance.each_resource do |reuse_as, resource|
+            next QA::Runtime::Logger.debug("#{resource.class.name} reused as :#{reuse_as} has already been removed.") unless resource.exists?
+
+            resource.method(:remove_via_api!).super_method.call
+          end
+        end
+
+        # Validates the reuse of each resource as defined by the resource class of each resource in the collection.
+        def validate_resource_reuse
+          instance.each_resource { |_, resource| resource.validate_reuse }
+        end
+
+        # Yields the collection of resources to allow resource classes to register themselves with the collection.
+        #
+        # @yieldparam [Hash] resource_classes the resource classes in the collection.
+        def register_resource_classes
+          yield instance.resource_classes
+        end
+      end
+    end
+  end
+end