1 files changed, 60 insertions, 0 deletions
diff --git a/spec/lib/gitlab/config/entry/attributable_spec.rb b/spec/lib/gitlab/config/entry/attributable_spec.rb
new file mode 100644
index 00000000000..abb4fff3ad7
--- /dev/null
+++ b/spec/lib/gitlab/config/entry/attributable_spec.rb
@@ -0,0 +1,60 @@
+require 'spec_helper'
+
+describe Gitlab::Config::Entry::Attributable do
+  let(:node) do
+    Class.new do
+      include Gitlab::Config::Entry::Attributable
+    end
+  end
+
+  let(:instance) { node.new }
+
+  before do
+    node.class_eval do
+      attributes :name, :test
+    end
+  end
+
+  context 'when config is a hash' do
+    before do
+      allow(instance)
+        .to receive(:config)
+        .and_return({ name: 'some name', test: 'some test' })
+    end
+
+    it 'returns the value of config' do
+      expect(instance.name).to eq 'some name'
+      expect(instance.test).to eq 'some test'
+    end
+
+    it 'returns no method error for unknown attributes' do
+      expect { instance.unknown }.to raise_error(NoMethodError)
+    end
+  end
+
+  context 'when config is not a hash' do
+    before do
+      allow(instance)
+        .to receive(:config)
+        .and_return('some test')
+    end
+
+    it 'returns nil' do
+      expect(instance.test).to be_nil
+    end
+  end
+
+  context 'when method is already defined in a superclass' do
+    it 'raises an error' do
+      expectation = expect do
+        Class.new(String) do
+          include Gitlab::Config::Entry::Attributable
+
+          attributes :length
+        end
+      end
+
+      expectation.to raise_error(ArgumentError, 'Method already defined!')
+    end
+  end
+end