``` @Test fun json_test_with_nested_data_class(...

# kotson

[hoang]

@Test fun json_test_with_nested_data_class() {
        data class MyNestedClass(val name: String, val password: String)

        val x: MyNestedClass = MyNestedClass("hoang", "1234")

        val result = GsonBuilder().create().toJson(x) // -> null
        result.should.equal("null")
    }