@Test
public void testMultipleInterfaces() {

    String[] interfaceNames = {
            "com.example.Interface1,com.example.Interface2",
            "com.other.Interface1,com.other.Interface2",
    };
    String actual = DynamicProxyConfigGenerator.generateProxyConfig(new CommandSpec[0], interfaceNames);
    String expected = String.format("" +
            "[%n" +
            "  [\"com.example.Interface1\", \"com.example.Interface2\"],%n" +
            "  [\"com.other.Interface1\", \"com.other.Interface2\"]%n" +
            "]%n");
    assertEquals(expected, actual);
}