CODEWITHSUNDEEP
javaspring-boottestingjunit
MauroB
MauroB

Reputation: 580

How to store sample objects used by tests in XML YML files?

When I create my unit tests, I use to declare and initialize a lot of sample shared objects used by the tests in one abstract class, extended by the classes with the tests.

E.g. I define the Product "phone" in the abstract class and I initialize it in a method called "init", annotated with @Before. I create the method @Test "savePhoneTest" in a child class which invokes the method "savePhone" using "phone". This object is always re-initialized and I can use it in other tests.

Is it possibile to store the sample objects in a XML / YML file? Is it a good practise? How can I retrieve the objects? I use spring boot. Thank you

Upvotes: 0

Views: 241

Answers (1)

pcsutar
pcsutar

Reputation: 1829

Yes, you can use XML/YAML/JSON to store sample objects. It will help you to write lesser code for creating sample objects. Also by using this approach your test cases will become more maintainable.

I will prefer JSON over XML/YAML.

Suppose you have a Product class as shown below,

Product.java

@Data
@NoArgsConstructor
public class Product {
    private int id;
    private String name;
    private float price;
    private String brand;
}

You can create JSON file to store objects. The JSON file for Product class will look like:

product.json

{
    "id": 1000,
    "name": "Smart phone",
    "price": 60000.0,
    "brand": "SAMSUNG"
}

Whenever you need any object of Product class you can create that object using JSON file. Below example shows how to create java object from JSON file:

InputStream inputStream = Product.class.getResourceAsStream("/product.json");
Product product = new ObjectMapper().readValue(inputStream, Product.class);

Upvotes: 1

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