JsonClassPathSource support generics type?

Hello. I’ve tried the demo below but it doesn’t work. I think JsonClassPathSource can’t deserialize json array to java list. Is there any other way to implement it? Thanks.

Java code:

@JsonClassPathSource("test.json")
void test(List<Person> persons){
  log.info("{}",persons)
}

Json file:

[
  {
    "name": "a",
    "age": 23
  },
  {
    "name": "a",
    "age": 23
  }
]

[Michael1993]

Oh, yeah, I see where the problem is - you pass a list of objects to your test that expects a list of lists. See, when you execute a parameterized test, it expects an input (a list) which it converts to single parameters. In your example your parameter is a list, so the test tries to convert your input to a list but it can not do that because you supplied a simple list not a list of lists.

To demonstrate with an example, this should work:

@ParameterizedTest
@JsonClasspathSource(JEDI_LIST)
void listObject(List<Jedi> jedisList){
	System.out.println("jedisList = " + jedisList);
}

Jedi list:

[
  [
    {
      "name": "Luke",
      "height": 172
    },
    {
      "name": "Yoda",
      "height": 66
    }
  ]
]

Note that I used two square brackets [ ] in my JSON file - because I want to pass a list of lists.

[sherlockEix]

i want use @JsonClasspathSource to prepare my integrate test data. i would like to write data to json file. it’s a complex struct. maybe single object or list. then. i will use injected object(list) to do test. my first idea is i write a utils to load data and deserialize to object. but i found @JsonClasspathSource so i use it to prepare my complex test data.