1 files changed, 68 insertions, 0 deletions
diff --git a/spec/presenters/alert_management/prometheus_alert_presenter_spec.rb b/spec/presenters/alert_management/prometheus_alert_presenter_spec.rb
new file mode 100644
index 00000000000..95246914140
--- /dev/null
+++ b/spec/presenters/alert_management/prometheus_alert_presenter_spec.rb
@@ -0,0 +1,68 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe AlertManagement::PrometheusAlertPresenter do
+  let_it_be(:project) { create(:project) }
+  let_it_be(:payload) do
+    {
+      'annotations' => {
+        'title' => 'Alert title',
+        'gitlab_incident_markdown' => '**`markdown example`**',
+        'custom annotation' => 'custom annotation value'
+      },
+      'startsAt' => '2020-04-27T10:10:22.265949279Z',
+      'generatorURL' => 'http://8d467bd4607a:9090/graph?g0.expr=vector%281%29&g0.tab=1'
+    }
+  end
+  let(:alert) do
+    create(:alert_management_alert, :prometheus, project: project, payload: payload)
+  end
+
+  subject(:presenter) { described_class.new(alert) }
+
+  describe '#issue_description' do
+    let(:markdown_line_break) { '  ' }
+
+    it 'returns an alert issue description' do
+      expect(presenter.issue_description).to eq(
+        <<~MARKDOWN.chomp
+          #### Summary
+
+          **Start time:** #{presenter.start_time}#{markdown_line_break}
+          **Severity:** #{presenter.severity}#{markdown_line_break}
+          **full_query:** `vector(1)`#{markdown_line_break}
+          **Monitoring tool:** Prometheus
+
+          #### Alert Details
+
+          **custom annotation:** custom annotation value
+
+          ---
+
+          **`markdown example`**
+        MARKDOWN
+      )
+    end
+  end
+
+  describe '#metrics_dashboard_url' do
+    subject { presenter.metrics_dashboard_url }
+
+    context 'for a non-prometheus alert' do
+      it { is_expected.to be_nil }
+    end
+
+    context 'for a self-managed prometheus alert' do
+      include_context 'self-managed prometheus alert attributes'
+
+      it { is_expected.to eq(dashboard_url_for_alert) }
+    end
+
+    context 'for a gitlab-managed prometheus alert' do
+      include_context 'gitlab-managed prometheus alert attributes'
+
+      it { is_expected.to eq(dashboard_url_for_alert) }
+    end
+  end
+end