Introduce CI/CD variables collection class

1 files changed, 63 insertions, 0 deletions

diff --git a/spec/lib/gitlab/ci/variables/collection_spec.rb b/spec/lib/gitlab/ci/variables/collection_spec.rb
new file mode 100644
index 00000000000..0ded8581a86
--- /dev/null
+++ b/spec/lib/gitlab/ci/variables/collection_spec.rb
@@ -0,0 +1,63 @@
+require 'spec_helper'
+
+describe Gitlab::Ci::Variables::Collection do
+  describe '.new' do
+    it 'can be initialized with an array' do
+      variable = { key: 'SOME_VAR', value: 'Some Value'}
+      collection = described_class.new([variable])
+
+      expect(collection.first.to_h).to include variable
+    end
+
+    it 'can be initialized without an argument' do
+      expect(subject).to be_none
+    end
+  end
+
+  describe '#append' do
+    it 'appends a hash' do
+      subject.append(key: 'VARIABLE', value: 'something')
+
+      expect(subject).to be_one
+    end
+
+    it 'appends a Ci::Variable' do
+      subject.append(build(:ci_variable))
+
+      expect(subject).to be_one
+    end
+
+    it 'appends an internal resource' do
+      collection = described_class.new([{ key: 'TEST', value: 1 }])
+
+      subject.append(collection.first)
+
+      expect(subject).to be_one
+    end
+  end
+
+  describe '#+' do
+    it 'makes it possible to combine with an array' do
+      collection = described_class.new([{ key: 'TEST', value: 1 }])
+      variables = [{ key: 'TEST', value: 'something'}]
+
+      expect((collection + variables).count).to eq 2
+    end
+
+    it 'makes it possible to combine with another collection' do
+      collection = described_class.new([{ key: 'TEST', value: 1 }])
+      other = described_class.new([{ key: 'TEST', value: 2 }])
+
+      expect((collection + other).count).to eq 2
+    end
+  end
+
+  describe '#to_hash' do
+    it 'creates a hash / value mapping' do
+      collection = described_class.new([{ key: 'TEST', value: 1 }])
+
+      expect(collection.to_hash)
+        .to eq [{ key: 'TEST', value: 1, public: false }]
+    end
+  end
+end