Extract scoped CI/CD variables to a separate concern

This commits extract code responsible for calculating essential CI/CD
variables to a separate concern. This makes it possible to share this
code between a `Ci::Build` and a `Ci::Bridge`.

We might want to refactor this to use composition instead of
inheritance.

1 files changed, 21 insertions, 0 deletions

diff --git a/spec/models/ci/bridge_spec.rb b/spec/models/ci/bridge_spec.rb
index 741cdfef1a5..c5908eed00a 100644
--- a/spec/models/ci/bridge_spec.rb
+++ b/spec/models/ci/bridge_spec.rb
@@ -22,4 +22,25 @@ describe Ci::Bridge do
       expect(status).to be_a Gitlab::Ci::Status::Success
     end
   end
+
+  describe '#scoped_variables_hash' do
+    it 'returns a hash representing variables' do
+      expect(bridge.scoped_variables_hash.keys).to eq %w[
+        CI GITLAB_CI GITLAB_FEATURES CI_SERVER_NAME
+        CI_SERVER_VERSION CI_SERVER_VERSION_MAJOR
+        CI_SERVER_VERSION_MINOR CI_SERVER_VERSION_PATCH
+        CI_SERVER_REVISION CI_JOB_NAME CI_JOB_STAGE
+        CI_COMMIT_SHA CI_COMMIT_SHORT_SHA CI_COMMIT_BEFORE_SHA
+        CI_COMMIT_REF_NAME CI_COMMIT_REF_SLUG CI_NODE_TOTAL
+        CI_BUILD_REF CI_BUILD_BEFORE_SHA CI_BUILD_REF_NAME
+        CI_BUILD_REF_SLUG CI_BUILD_NAME CI_BUILD_STAGE
+        CI_PROJECT_ID CI_PROJECT_NAME CI_PROJECT_PATH
+        CI_PROJECT_PATH_SLUG CI_PROJECT_NAMESPACE CI_PROJECT_URL
+        CI_PROJECT_VISIBILITY CI_PAGES_DOMAIN CI_PAGES_URL
+        CI_REGISTRY CI_REGISTRY_IMAGE CI_API_V4_URL
+        CI_PIPELINE_IID CI_CONFIG_PATH CI_PIPELINE_SOURCE
+        CI_COMMIT_MESSAGE CI_COMMIT_TITLE CI_COMMIT_DESCRIPTION
+      ]
+    end
+  end
 end