1 files changed, 73 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/custom_emoji/destroy_spec.rb b/spec/requests/api/graphql/mutations/custom_emoji/destroy_spec.rb
new file mode 100644
index 00000000000..07fd57a2cee
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/custom_emoji/destroy_spec.rb
@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Deletion of custom emoji' do
+  include GraphqlHelpers
+
+  let_it_be(:group) { create(:group) }
+  let_it_be(:current_user) { create(:user) }
+  let_it_be(:user2) { create(:user) }
+  let_it_be_with_reload(:custom_emoji) { create(:custom_emoji, group: group, creator: user2) }
+
+  let(:mutation) do
+    variables = {
+      id: GitlabSchema.id_from_object(custom_emoji).to_s
+    }
+
+    graphql_mutation(:destroy_custom_emoji, variables)
+  end
+
+  shared_examples 'does not delete custom emoji' do
+    it 'does not change count' do
+      expect { post_graphql_mutation(mutation, current_user: current_user) }.not_to change(CustomEmoji, :count)
+    end
+  end
+
+  shared_examples 'deletes custom emoji' do
+    it 'changes count' do
+      expect { post_graphql_mutation(mutation, current_user: current_user) }.to change(CustomEmoji, :count).by(-1)
+    end
+  end
+
+  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 creator of custom emoji' do
+      before do
+        group.add_developer(current_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(current_user)
+      end
+
+      it_behaves_like 'deletes custom emoji'
+    end
+
+    context 'is owner' do
+      before do
+        group.add_owner(current_user)
+      end
+
+      it_behaves_like 'deletes custom emoji'
+    end
+
+    context 'is developer and creator of the emoji' do
+      before do
+        group.add_developer(current_user)
+        custom_emoji.update_attribute(:creator, current_user)
+      end
+
+      it_behaves_like 'deletes custom emoji'
+    end
+  end
+end