@Test
public void testStreamTupleSerializerWithPrimitive() {

    TypeInformation<String> typeInfo = TypeInformation.of(new TypeHint<String>() {});
    StreamSchema<String> schema = new StreamSchema<>(typeInfo, "words");
    assertEquals(String.class, schema.getTypeInfo().getTypeClass());
    TypeInformation<Tuple2<String, String>> tuple2TypeInformation = Types.TUPLE(TypeInformation.of(String.class), schema.getTypeInfo());
    assertEquals("Java Tuple2<String, String>", tuple2TypeInformation.toString());
}