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, 25 insertions, 0 deletions

diff --git a/spec/lib/gitlab/ci/parsers_spec.rb b/spec/lib/gitlab/ci/parsers_spec.rb
new file mode 100644
index 00000000000..4b647bffe59
--- /dev/null
+++ b/spec/lib/gitlab/ci/parsers_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::Ci::Parsers do
+  describe '.fabricate!' do
+    subject { described_class.fabricate!(file_type) }
+
+    context 'when file_type exists' do
+      let(:file_type) { 'junit' }
+
+      it 'fabricates the class' do
+        is_expected.to be_a(described_class::Test::Junit)
+      end
+    end
+
+    context 'when file_type does not exist' do
+      let(:file_type) { 'undefined' }
+
+      it 'raises an error' do
+        expect { subject }.to raise_error(Gitlab::Ci::Parsers::ParserNotFoundError)
+      end
+    end
+  end
+end