1 files changed, 32 insertions, 0 deletions
diff --git a/spec/models/blob_viewer/gitlab_ci_yml_spec.rb b/spec/models/blob_viewer/gitlab_ci_yml_spec.rb
new file mode 100644
index 00000000000..0c6c24ece21
--- /dev/null
+++ b/spec/models/blob_viewer/gitlab_ci_yml_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe BlobViewer::GitlabCiYml, model: true do
+  include FakeBlobHelpers
+
+  let(:project) { build(:project) }
+  let(:data) { File.read(Rails.root.join('spec/support/gitlab_stubs/gitlab_ci.yml')) }
+  let(:blob) { fake_blob(path: '.gitlab-ci.yml', data: data) }
+  subject { described_class.new(blob) }
+
+  describe '#validation_message' do
+    it 'calls prepare! on the viewer' do
+      expect(subject).to receive(:prepare!)
+
+      subject.validation_message
+    end
+
+    context 'when the configuration is valid' do
+      it 'returns nil' do
+        expect(subject.validation_message).to be_nil
+      end
+    end
+
+    context 'when the configuration is invalid' do
+      let(:data) { 'oof' }
+
+      it 'returns the error message' do
+        expect(subject.validation_message).to eq('Invalid configuration format')
+      end
+    end
+  end
+end