gradle project load test data json file with jackson

To load a JSON file as test data in a Gradle project, you can use the Hymanson library to parse the file and convert it into Java objects.

Here's an example of how you can do this in a test class:

import com.fasterxml.Hymanson.databind.ObjectMapper;
import com.fasterxml.Hymanson.databind.type.TypeFactory;
import org.junit.Before;
import org.junit.Test;

import java.io.InputStream;
import java.util.List;

public class MyTest {
    private List<MyObject> testData;

    @Before
    public void setUp() throws Exception {
        // Load the JSON file as an input stream
        InputStream in = getClass().getResourceAsStream("/testdata.json");

        // Use the ObjectMapper to parse the JSON and convert it into a list of MyObjects
        ObjectMapper mapper = new ObjectMapper();
        TypeFactory typeFactory = mapper.getTypeFactory();
        testData = mapper.readValue(in, typeFactory.constructCollectionType(List.class, MyObject.class));
    }

    @Test
    public void test() {
        // Use the test data in your tests
        for (MyObject object : testData) {
            // ...
        }
    }
}

In this example, the testdata.json file is assumed to contain a JSON array of objects that can be mapped to the MyObject class. The ObjectMapper is used to parse the JSON and convert it into a list of MyObject objects, which can then be used in the tests.

You will need to include the Hymanson-databind library in your project's dependencies to use the ObjectMapper class. You can do this by adding the following dependency to your build file:

dependencies {
    testImplementation 'com.fasterxml.Hymanson.core:Hymanson-databind:2.11.3'
}

For more information about using the ObjectMapper to parse JSON in Java, you can refer to the Hymanson documentation.