1 files changed, 116 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/components/instance_path_spec.rb b/spec/lib/gitlab/ci/components/instance_path_spec.rb
new file mode 100644
index 00000000000..d9beae0555c
--- /dev/null
+++ b/spec/lib/gitlab/ci/components/instance_path_spec.rb
@@ -0,0 +1,116 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Components::InstancePath, feature_category: :pipeline_authoring do
+  let_it_be(:user) { create(:user) }
+
+  let(:path) { described_class.new(address: address, content_filename: 'template.yml') }
+  let(:settings) { Settingslogic.new({ 'component_fqdn' => current_host }) }
+  let(:current_host) { 'acme.com/' }
+
+  before do
+    allow(::Settings).to receive(:gitlab_ci).and_return(settings)
+  end
+
+  describe 'FQDN path' do
+    let_it_be(:existing_project) { create(:project, :repository) }
+
+    let(:project_path) { existing_project.full_path }
+    let(:address) { "acme.com/#{project_path}/component@#{version}" }
+    let(:version) { 'master' }
+
+    context 'when project exists' do
+      it 'provides the expected attributes', :aggregate_failures do
+        expect(path.project).to eq(existing_project)
+        expect(path.host).to eq(current_host)
+        expect(path.sha).to eq(existing_project.commit('master').id)
+        expect(path.project_file_path).to eq('component/template.yml')
+      end
+
+      context 'when content exists' do
+        let(:content) { 'image: alpine' }
+
+        before do
+          allow_next_instance_of(Repository) do |instance|
+            allow(instance)
+              .to receive(:blob_data_at)
+              .with(existing_project.commit('master').id, 'component/template.yml')
+              .and_return(content)
+          end
+        end
+
+        context 'when user has permissions to read code' do
+          before do
+            existing_project.add_developer(user)
+          end
+
+          it 'fetches the content' do
+            expect(path.fetch_content!(current_user: user)).to eq(content)
+          end
+        end
+
+        context 'when user does not have permissions to download code' do
+          it 'raises an error when fetching the content' do
+            expect { path.fetch_content!(current_user: user) }
+              .to raise_error(Gitlab::Access::AccessDeniedError)
+          end
+        end
+      end
+    end
+
+    context 'when project path is nested under a subgroup' do
+      let(:existing_group) { create(:group, :nested) }
+      let(:existing_project) { create(:project, :repository, group: existing_group) }
+
+      it 'provides the expected attributes', :aggregate_failures do
+        expect(path.project).to eq(existing_project)
+        expect(path.host).to eq(current_host)
+        expect(path.sha).to eq(existing_project.commit('master').id)
+        expect(path.project_file_path).to eq('component/template.yml')
+      end
+    end
+
+    context 'when current GitLab instance is installed on a relative URL' do
+      let(:address) { "acme.com/gitlab/#{project_path}/component@#{version}" }
+      let(:current_host) { 'acme.com/gitlab/' }
+
+      it 'provides the expected attributes', :aggregate_failures do
+        expect(path.project).to eq(existing_project)
+        expect(path.host).to eq(current_host)
+        expect(path.sha).to eq(existing_project.commit('master').id)
+        expect(path.project_file_path).to eq('component/template.yml')
+      end
+    end
+
+    context 'when version does not exist' do
+      let(:version) { 'non-existent' }
+
+      it 'provides the expected attributes', :aggregate_failures do
+        expect(path.project).to eq(existing_project)
+        expect(path.host).to eq(current_host)
+        expect(path.sha).to be_nil
+        expect(path.project_file_path).to eq('component/template.yml')
+      end
+
+      it 'returns nil when fetching the content' do
+        expect(path.fetch_content!(current_user: user)).to be_nil
+      end
+    end
+
+    context 'when project does not exist' do
+      let(:project_path) { 'non-existent/project' }
+
+      it 'provides the expected attributes', :aggregate_failures do
+        expect(path.project).to be_nil
+        expect(path.host).to eq(current_host)
+        expect(path.sha).to be_nil
+        expect(path.project_file_path).to be_nil
+      end
+
+      it 'returns nil when fetching the content' do
+        expect(path.fetch_content!(current_user: user)).to be_nil
+      end
+    end
+  end
+end