Reading test data from JSON with TestNG in Java

Question

I'm trying to find the easiest way to parse simple json to java Object for use json data in autotest (TestNG), but I don't understand another examples with various libraries.

I have this code:

@Test(dataProvider = "SearchData") 
public void searchCatTest(String searchRequest, int expectedVal) {
    CatScreen.search(searchrequest);
    int actualVal = CatScreen.getSearchResultsNumber();
    Assert.assertEquals(actualVal, expectedVal);
}

And I have this json:

{   "dataSet": [
    {
      "searchRequest": "*]",
      "expectedVal": 0
    },
    {
      "searchRequest": "Tom",
      "expectedVal": 1
    },
    {
      "searchRequest": "1234",
      "expectedVal": 0
    }   ] }

How can I linked them?

I think the question is to broad and an answer would be opinionated. Here is a good answer how to parse JSON: https://stackoverflow.com/questions/2591098/how-to-parse-json-in-java — brass monkey, Jul 19 '18 at 09:59

score 2 · Accepted Answer · edited May 09 '19 at 16:26

@DataProvider(name = "json-data")
public static Object[][] getJSON(ITestContext context) throws FileNotFoundException {
    String filename = <get name from context>
    JsonArray array = new JsonParser().parse(new FileReader(filename))
       .getAsJsonArray();
    Gson gson = new Gson();
    List < Map > list = gson.fromJson(array, List.class);
    Object[][] objects = list.stream()
        .map(testData - >
            testData.values().stream().map(obj - > 
              doubletoint(obj)).toArray()).toArray(Object[][]::new);
    return objects;
}

TestNG will create a new thread per row of data.

score 0 · Answer 2 · answered Jul 19 '18 at 07:42

0

You can use the following library to parse the json code to java :

        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1.1</version>
        </dependency>

You can refer the this link for how to parse the json code.

answered Jul 19 '18 at 07:42

Suraj Jogdand

308
2
17

Thanks, but this info is more than available in google. I search a simple and fast template for this actions: parse json array to java Object[][] – Dmitrij Jul 19 '18 at 07:58

Reading test data from JSON with TestNG in Java

2 Answers2