case testCase.expectedErr.Error() != err.Error():
				t.Errorf("error: expected = %v, got = %v", testCase.expectedErr, err)
			}
		})
	}
}

func TestExtractHostPort(t *testing.T) {
	testCases := []struct {
		addr        string
		host        string
		port        string
		expectedErr error
	}{
		{"", "", "", errors.New("unable to process empty address")},