describe IPService do describe '.ip_trusted?' do after(:each) { ENV['TRUSTED_NETWORKS'] = nil } subject { IPService.ip_trusted?(ip) } context 'when the ip is nil' do let(:ip) { nil } it { is_expected.to be(false) } end context 'when the ip is defined' do let(:ip) { '192.168.1.10' } context 'when it belongs to a trusted network' do before do ENV['TRUSTED_NETWORKS'] = '10.0.0.0/8 192.168.0.0/16 bad_network' end it { is_expected.to be(true) } end context 'when it does not belong to a trusted network' do before do ENV['TRUSTED_NETWORKS'] = '10.0.0.0/8' end it { is_expected.to be(false) } end context 'when the trusted network is not defined' do it { is_expected.to be(false) } end context 'when the trusted network is malformed' do before do ENV['TRUSTED_NETWORKS'] = 'bad network' end it { is_expected.to be(false) } end end context 'when a trusted network is defined' do before { ENV['TRUSTED_NETWORKS'] = '10.0.0.0/8' } context 'when the ip is nil' do let(:ip) { nil } it { is_expected.to be(false) } end context 'when the ip is badly formatted' do let(:ip) { 'yop' } it { is_expected.to be(false) } end end end end