Generalise test compare service

It adds a base class for CompareTestReportsService
containing common code with CompareLicenseManagementReportsService
which is present in GitLab Enterprise Edition.

1 files changed, 21 insertions, 0 deletions

diff --git a/lib/gitlab/ci/parsers.rb b/lib/gitlab/ci/parsers.rb
new file mode 100644
index 00000000000..eb63e6c8363
--- /dev/null
+++ b/lib/gitlab/ci/parsers.rb
@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    module Parsers
+      ParserNotFoundError = Class.new(ParserError)
+
+      def self.parsers
+        {
+          junit: ::Gitlab::Ci::Parsers::Test::Junit
+        }
+      end
+
+      def self.fabricate!(file_type)
+        parsers.fetch(file_type.to_sym).new
+      rescue KeyError
+        raise ParserNotFoundError, "Cannot find any parser matching file type '#{file_type}'"
+      end
+    end
+  end
+end