1 files changed, 49 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/config/entry/pages_spec.rb b/spec/lib/gitlab/ci/config/entry/pages_spec.rb
new file mode 100644
index 00000000000..0ee692a443e
--- /dev/null
+++ b/spec/lib/gitlab/ci/config/entry/pages_spec.rb
@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Config::Entry::Pages, feature_category: :pages do
+  subject(:entry) { described_class.new(config) }
+
+  describe 'validation' do
+    context 'when value given is not a hash' do
+      let(:config) { 'value' }
+
+      it 'is invalid' do
+        expect(entry).not_to be_valid
+        expect(entry.errors).to include('pages config should be a hash')
+      end
+    end
+
+    context 'when value is a hash' do
+      context 'when the hash is valid' do
+        let(:config) { { path_prefix: 'prefix' } }
+
+        it 'is valid' do
+          expect(entry).to be_valid
+          expect(entry.value).to eq({
+            path_prefix: 'prefix'
+          })
+        end
+      end
+
+      context 'when path_prefix key is not a string' do
+        let(:config) { { path_prefix: 1 } }
+
+        it 'is invalid' do
+          expect(entry).not_to be_valid
+          expect(entry.errors).to include('pages path prefix should be a string')
+        end
+      end
+
+      context 'when hash contains not allowed keys' do
+        let(:config) { { unknown: 'echo' } }
+
+        it 'is invalid' do
+          expect(entry).not_to be_valid
+          expect(entry.errors).to include('pages config contains unknown keys: unknown')
+        end
+      end
+    end
+  end
+end