1 files changed, 79 insertions, 0 deletions
diff --git a/spec/graphql/mutations/custom_emoji/destroy_spec.rb b/spec/graphql/mutations/custom_emoji/destroy_spec.rb
new file mode 100644
index 00000000000..4667812cc80
--- /dev/null
+++ b/spec/graphql/mutations/custom_emoji/destroy_spec.rb
@@ -0,0 +1,79 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Mutations::CustomEmoji::Destroy do
+  let_it_be(:group) { create(:group) }
+  let_it_be(:user) { create(:user) }
+  let_it_be_with_reload(:custom_emoji) { create(:custom_emoji, group: group) }
+
+  let(:args) { { id: custom_emoji.to_global_id } }
+  let(:mutation) { described_class.new(object: nil, context: { current_user: user }, field: nil) }
+
+  context 'field tests' do
+    subject { described_class }
+
+    it { is_expected.to have_graphql_arguments(:id) }
+    it { is_expected.to have_graphql_field(:custom_emoji) }
+  end
+
+  shared_examples 'does not delete custom emoji' do
+    it 'raises exception' do
+      expect { subject }
+        .to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+    end
+  end
+
+  shared_examples 'deletes custom emoji' do
+    it 'returns deleted custom emoji' do
+      result = subject
+
+      expect(result[:custom_emoji][:name]).to eq(custom_emoji.name)
+    end
+  end
+
+  describe '#resolve' do
+    subject { mutation.resolve(**args) }
+
+    context 'when the user' do
+      context 'has no permissions' do
+        it_behaves_like 'does not delete custom emoji'
+      end
+
+      context 'when the user is developer and not the owner of custom emoji' do
+        before do
+          group.add_developer(user)
+        end
+
+        it_behaves_like 'does not delete custom emoji'
+      end
+    end
+
+    context 'when user' do
+      context 'is maintainer' do
+        before do
+          group.add_maintainer(user)
+        end
+
+        it_behaves_like 'deletes custom emoji'
+      end
+
+      context 'is owner' do
+        before do
+          group.add_owner(user)
+        end
+
+        it_behaves_like 'deletes custom emoji'
+      end
+
+      context 'is developer and creator of the emoji' do
+        before do
+          group.add_developer(user)
+          custom_emoji.update_attribute(:creator, user)
+        end
+
+        it_behaves_like 'deletes custom emoji'
+      end
+    end
+  end
+end