1 files changed, 53 insertions, 0 deletions
diff --git a/spec/lib/gitlab_settings/settings_spec.rb b/spec/lib/gitlab_settings/settings_spec.rb
new file mode 100644
index 00000000000..55ceff4ce82
--- /dev/null
+++ b/spec/lib/gitlab_settings/settings_spec.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe GitlabSettings::Settings, :aggregate_failures, feature_category: :shared do
+  let(:config) do
+    {
+      section1: {
+        config1: {
+          value1: 1
+        }
+      }
+    }
+  end
+
+  let(:source) { Tempfile.new('config.yaml') }
+
+  before do
+    File.write(source, config.to_yaml)
+  end
+
+  subject(:settings) { described_class.new(source.path, 'section1') }
+
+  it 'requires a source' do
+    expect { described_class.new('', '') }
+      .to raise_error(ArgumentError, 'config source is required')
+  end
+
+  it 'requires a section' do
+    expect { described_class.new(source, '') }
+      .to raise_error(ArgumentError, 'config section is required')
+  end
+
+  it 'loads the given section config' do
+    expect(settings.config1.value1).to eq(1)
+  end
+
+  describe '#reload!' do
+    it 'reloads the config' do
+      expect(settings.config1.value1).to eq(1)
+
+      File.write(source, { section1: { config1: { value1: 2 } } }.to_yaml)
+
+      # config doesn't change when source changes
+      expect(settings.config1.value1).to eq(1)
+
+      settings.reload!
+
+      # config changes after reload! if source changed
+      expect(settings.config1.value1).to eq(2)
+    end
+  end
+end