1 files changed, 93 insertions, 0 deletions
diff --git a/spec/requests/api/graphql/mutations/packages/destroy_file_spec.rb b/spec/requests/api/graphql/mutations/packages/destroy_file_spec.rb
new file mode 100644
index 00000000000..7be629f8f4b
--- /dev/null
+++ b/spec/requests/api/graphql/mutations/packages/destroy_file_spec.rb
@@ -0,0 +1,93 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe 'Destroying a package file' do
+  using RSpec::Parameterized::TableSyntax
+
+  include GraphqlHelpers
+
+  let_it_be_with_reload(:package) { create(:maven_package) }
+  let_it_be(:user) { create(:user) }
+
+  let(:project) { package.project }
+  let(:id) { package.package_files.first.to_global_id.to_s }
+
+  let(:query) do
+    <<~GQL
+      errors
+    GQL
+  end
+
+  let(:params) { { id: id } }
+  let(:mutation) { graphql_mutation(:destroy_package_file, params, query) }
+  let(:mutation_response) { graphql_mutation_response(:destroyPackageFile) }
+
+  shared_examples 'destroying the package file' do
+    it 'destroy the package file' do
+      expect { mutation_request }.to change { ::Packages::PackageFile.count }.by(-1)
+    end
+
+    it_behaves_like 'returning response status', :success
+  end
+
+  shared_examples 'denying the mutation request' do
+    it 'does not destroy the package file' do
+      expect(::Packages::PackageFile)
+          .not_to receive(:destroy)
+
+      expect { mutation_request }.not_to change { ::Packages::PackageFile.count }
+
+      expect(mutation_response).to be_nil
+    end
+
+    it_behaves_like 'returning response status', :success
+  end
+
+  describe 'post graphql mutation' do
+    subject(:mutation_request) { post_graphql_mutation(mutation, current_user: user) }
+
+    context 'with valid id' do
+      where(:user_role, :shared_examples_name) do
+        :maintainer | 'destroying the package file'
+        :developer  | 'denying the mutation request'
+        :reporter   | 'denying the mutation request'
+        :guest      | 'denying the mutation request'
+        :anonymous  | 'denying the mutation request'
+      end
+
+      with_them do
+        before do
+          project.send("add_#{user_role}", user) unless user_role == :anonymous
+        end
+
+        it_behaves_like params[:shared_examples_name]
+      end
+    end
+
+    context 'with invalid id' do
+      let(:params) { { id: 'gid://gitlab/Packages::PackageFile/5555' } }
+
+      it_behaves_like 'denying the mutation request'
+    end
+
+    context 'when an error occures' do
+      let(:error_messages) { ['some error'] }
+
+      before do
+        project.add_maintainer(user)
+      end
+
+      it 'returns the errors in the response' do
+        allow_next_found_instance_of(::Packages::PackageFile) do |package_file|
+          allow(package_file).to receive(:destroy).and_return(false)
+          allow(package_file).to receive_message_chain(:errors, :full_messages).and_return(error_messages)
+        end
+
+        mutation_request
+
+        expect(mutation_response['errors']).to eq(error_messages)
+      end
+    end
+  end
+end