Use Case

1. Custom Card Type annotation for ParameterizedTest tests

We currently have repeated test methods like this:

@ParameterizedTest
@CsvSource(value = {
    "debit",     // for prepaid card
    "null"         // default/optional case
}, nullValues = {"null"})
void testCardType(String cardType) {
    // test logic
}

We want to avoid repeating the boilerplate and allow:

• a single custom annotation

• configurable cardType values via the annotation

Solution

Define a Custom Annotation

@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@ParameterizedTest
@CsvSource(value = {
    "debit",
    "null"
}, nullValues = {"null"})
public @interface CardTypeTest {
}

We can now use

@CardTypeTest
void testCardType(String cardType) {
    // test logic
}