1 files changed, 86 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/labels/create_spec.rb b/spec/requests/api/graphql/mutations/labels/create_spec.rb
new file mode 100644
index 00000000000..28284408306
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/labels/create_spec.rb
@@ -0,0 +1,86 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::Labels::Create do
+  include GraphqlHelpers
+
+  let_it_be(:current_user) { create(:user) }
+
+  let(:params) do
+    {
+      'title' => 'foo',
+      'description' => 'some description',
+      'color' => '#FF0000'
+    }
+  end
+
+  let(:mutation) { graphql_mutation(:label_create, params.merge(extra_params)) }
+
+  subject { post_graphql_mutation(mutation, current_user: current_user) }
+
+  def mutation_response
+    graphql_mutation_response(:label_create)
+  end
+
+  shared_examples_for 'labels create mutation' do
+    context 'when the user does not have permission to create a label' do
+      it_behaves_like 'a mutation that returns a top-level access error'
+
+      it 'does not create the label' do
+        expect { subject }.not_to change { Label.count }
+      end
+    end
+
+    context 'when the user has permission to create a label' do
+      before do
+        parent.add_developer(current_user)
+      end
+
+      context 'when the parent (project_path or group_path) param is given' do
+        it 'creates the label' do
+          expect { subject }.to change { Label.count }.to(1)
+
+          expect(mutation_response).to include(
+            'label' => a_hash_including(params))
+        end
+
+        it 'does not create a label when there are errors' do
+          label_factory = parent.is_a?(Group) ? :group_label : :label
+          create(label_factory, title: 'foo', parent.class.name.underscore.to_sym => parent)
+
+          expect { subject }.not_to change { Label.count }
+
+          expect(mutation_response).to have_key('label')
+          expect(mutation_response['label']).to be_nil
+          expect(mutation_response['errors'].first).to eq('Title has already been taken')
+        end
+      end
+    end
+  end
+
+  context 'when creating a project label' do
+    let_it_be(:parent) { create(:project) }
+    let(:extra_params) { { project_path: parent.full_path } }
+
+    it_behaves_like 'labels create mutation'
+  end
+
+  context 'when creating a group label' do
+    let_it_be(:parent) { create(:group) }
+    let(:extra_params) { { group_path: parent.full_path } }
+
+    it_behaves_like 'labels create mutation'
+  end
+
+  context 'when neither project_path nor group_path param is given' do
+    let(:mutation) { graphql_mutation(:label_create, params) }
+
+    it_behaves_like 'a mutation that returns top-level errors',
+      errors: ['Exactly one of group_path or project_path arguments is required']
+
+    it 'does not create the label' do
+      expect { subject }.not_to change { Label.count }
+    end
+  end
+end