1 files changed, 58 insertions, 0 deletions
diff --git a/spec/graphql/mutations/alert_management/alerts/todo/create_spec.rb b/spec/graphql/mutations/alert_management/alerts/todo/create_spec.rb
new file mode 100644
index 00000000000..11ee40a4c7e
--- /dev/null
+++ b/spec/graphql/mutations/alert_management/alerts/todo/create_spec.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::AlertManagement::Alerts::Todo::Create do
+  subject(:mutation) { described_class.new(object: project, context: { current_user: current_user }, field: nil) }
+
+  let_it_be(:alert) { create(:alert_management_alert) }
+  let_it_be(:project) { alert.project }
+  let(:current_user) { project.owner }
+
+  let(:args) { { project_path: project.full_path, iid: alert.iid } }
+
+  specify { expect(described_class).to require_graphql_authorizations(:update_alert_management_alert) }
+
+  describe '#resolve' do
+    subject(:resolve) { mutation.resolve(args) }
+
+    context 'when user does not have permissions' do
+      let(:current_user) { nil }
+
+      specify { expect { resolve }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable) }
+    end
+
+    context 'when project is invalid' do
+      let(:args) { { project_path: 'bunk/path', iid: alert.iid } }
+
+      specify { expect { resolve }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable) }
+    end
+
+    context 'when alert is invalid' do
+      let(:args) { { project_path: project.full_path, iid: "-1" } }
+
+      specify { expect { resolve }.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable) }
+    end
+
+    context 'when the create service yields errors' do
+      let(:error_response) { double(error?: true, message: 'error', payload: { alert: {} }) }
+
+      before do
+        allow_next_instance_of(::AlertManagement::Alerts::Todo::CreateService) do |service|
+          allow(service).to receive(:execute).and_return(error_response)
+        end
+      end
+
+      specify { expect { resolve }.not_to change(Todo, :count) }
+      specify { expect(resolve[:errors]).to eq([error_response.message]) }
+    end
+
+    context 'with valid inputs' do
+      it 'creates a new todo' do
+        expect { resolve }.to change { Todo.where(user: current_user, action: Todo::MARKED).count }.by(1)
+      end
+
+      it { is_expected.to eq(alert: alert, todo: Todo.last, errors: []) }
+    end
+  end
+end