Add image configuration entry to new ci config

1 files changed, 46 insertions, 0 deletions

diff --git a/spec/lib/gitlab/ci/config/node/image_spec.rb b/spec/lib/gitlab/ci/config/node/image_spec.rb
new file mode 100644
index 00000000000..0b0821ca558
--- /dev/null
+++ b/spec/lib/gitlab/ci/config/node/image_spec.rb
@@ -0,0 +1,46 @@
+require 'spec_helper'
+
+describe Gitlab::Ci::Config::Node::Image do
+  let(:entry) { described_class.new(config) }
+
+  describe 'validation' do
+    context 'when entry config value is correct' do
+      let(:config) { 'ruby:2.2' }
+
+      describe '#value' do
+        it 'returns image string' do
+          expect(entry.value).to eq 'ruby:2.2'
+        end
+      end
+
+      describe '#errors' do
+        it 'does not append errors' do
+          expect(entry.errors).to be_empty
+        end
+      end
+
+      describe '#valid?' do
+        it 'is valid' do
+          expect(entry).to be_valid
+        end
+      end
+    end
+
+    context 'when entry value is not correct' do
+      let(:config) { ['ruby:2.2'] }
+
+      describe '#errors' do
+        it 'saves errors' do
+          expect(entry.errors)
+            .to include 'Image config should be a string'
+        end
+      end
+
+      describe '#valid?' do
+        it 'is not valid' do
+          expect(entry).not_to be_valid
+        end
+      end
+    end
+  end
+end