1 files changed, 106 insertions, 0 deletions
diff --git a/spec/requests/projects/metrics/dashboards/builder_spec.rb b/spec/requests/projects/metrics/dashboards/builder_spec.rb
new file mode 100644
index 00000000000..e59ed591f63
--- /dev/null
+++ b/spec/requests/projects/metrics/dashboards/builder_spec.rb
@@ -0,0 +1,106 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Projects::Metrics::Dashboards::BuilderController' do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:environment) { create(:environment, project: project) }
+  let_it_be(:user) { create(:user) }
+  let_it_be(:valid_panel_yml) do
+    <<~YML
+    ---
+    title: "Super Chart A1"
+    type: "area-chart"
+    y_label: "y_label"
+    weight: 1
+    max_value: 1
+    metrics:
+    - id: metric_a1
+      query_range: |+
+        avg(
+          sum(
+            container_memory_usage_bytes{
+              container_name!="POD",
+              pod_name=~"^{{ci_environment_slug}}-(.*)",
+              namespace="{{kube_namespace}}",
+              user_def_variable="{{user_def_variable}}"
+            }
+          ) by (job)
+        ) without (job)
+        /1024/1024/1024
+      unit: unit
+      label: Legend Label
+    YML
+  end
+  let_it_be(:invalid_panel_yml) do
+    <<~YML
+    ---
+    title: "Super Chart A1"
+    type: "area-chart"
+    y_label: "y_label"
+    weight: 1
+    max_value: 1
+    YML
+  end
+
+  def send_request(params = {})
+    post namespace_project_metrics_dashboards_builder_path(namespace_id: project.namespace, project_id: project, format: :json, **params)
+  end
+
+  describe 'POST /:namespace/:project/-/metrics/dashboards/builder' do
+    context 'as anonymous user' do
+      it 'redirects user to sign in page' do
+        send_request
+
+        expect(response).to redirect_to(new_user_session_path)
+      end
+    end
+
+    context 'as user with guest access' do
+      before do
+        project.add_guest(user)
+        login_as(user)
+      end
+
+      it 'returns not found' do
+        send_request
+
+        expect(response).to have_gitlab_http_status(:not_found)
+      end
+    end
+
+    context 'as logged in user' do
+      before do
+        project.add_developer(user)
+        login_as(user)
+      end
+
+      context 'valid yaml panel is supplied' do
+        it 'returns success' do
+          send_request(panel_yaml: valid_panel_yml)
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response).to include('title' => 'Super Chart A1', 'type' => 'area-chart')
+        end
+      end
+
+      context 'invalid yaml panel is supplied' do
+        it 'returns unprocessable entity' do
+          send_request(panel_yaml: invalid_panel_yml)
+
+          expect(response).to have_gitlab_http_status(:unprocessable_entity)
+          expect(json_response['message']).to eq('Each "panel" must define an array :metrics')
+        end
+      end
+
+      context 'invalid panel_yaml is not a yaml string' do
+        it 'returns unprocessable entity' do
+          send_request(panel_yaml: 1)
+
+          expect(response).to have_gitlab_http_status(:unprocessable_entity)
+          expect(json_response['message']).to eq('Invalid configuration format')
+        end
+      end
+    end
+  end
+end