1 files changed, 69 insertions, 0 deletions
diff --git a/spec/lib/gitlab/config/entry/composable_array_spec.rb b/spec/lib/gitlab/config/entry/composable_array_spec.rb
new file mode 100644
index 00000000000..77766cb3b0a
--- /dev/null
+++ b/spec/lib/gitlab/config/entry/composable_array_spec.rb
@@ -0,0 +1,69 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Config::Entry::ComposableArray, :aggregate_failures do
+  let(:valid_config) do
+    [
+      {
+        DATABASE_SECRET: 'passw0rd'
+      },
+      {
+        API_TOKEN: 'passw0rd2'
+      }
+    ]
+  end
+
+  let(:config) { valid_config }
+  let(:entry) { described_class.new(config) }
+
+  before do
+    allow(entry).to receive(:composable_class).and_return(Gitlab::Config::Entry::Node)
+  end
+
+  describe '#valid?' do
+    it 'is valid' do
+      expect(entry).to be_valid
+    end
+
+    context 'is invalid' do
+      let(:config) { { hello: :world } }
+
+      it { expect(entry).not_to be_valid }
+    end
+  end
+
+  describe '#compose!' do
+    before do
+      entry.compose!
+    end
+
+    it 'composes child entry with configured value' do
+      expect(entry.value).to eq(config)
+    end
+
+    it 'composes child entries with configured values' do
+      expect(entry[0]).to be_a(Gitlab::Config::Entry::Node)
+      expect(entry[0].description).to eq('node definition')
+      expect(entry[0].key).to eq('node')
+      expect(entry[0].metadata).to eq({})
+      expect(entry[0].parent.class).to eq(Gitlab::Config::Entry::ComposableArray)
+      expect(entry[0].value).to eq(DATABASE_SECRET: 'passw0rd')
+      expect(entry[1]).to be_a(Gitlab::Config::Entry::Node)
+      expect(entry[1].description).to eq('node definition')
+      expect(entry[1].key).to eq('node')
+      expect(entry[1].metadata).to eq({})
+      expect(entry[1].parent.class).to eq(Gitlab::Config::Entry::ComposableArray)
+      expect(entry[1].value).to eq(API_TOKEN: 'passw0rd2')
+    end
+
+    describe '#descendants' do
+      it 'creates descendant nodes' do
+        expect(entry.descendants.first).to be_a(Gitlab::Config::Entry::Node)
+        expect(entry.descendants.first.value).to eq(DATABASE_SECRET: 'passw0rd')
+        expect(entry.descendants.second).to be_a(Gitlab::Config::Entry::Node)
+        expect(entry.descendants.second.value).to eq(API_TOKEN: 'passw0rd2')
+      end
+    end
+  end
+end