Examples with ThrowingConsumer org.junit.jupiter.api.function.ThrowingConsumer used on opensource projects

Example 1 with ThrowingConsumer

use of org.junit.jupiter.api.function.ThrowingConsumer in project junit5 by junit-team.

the class DynamicTestsDemo method generateRandomNumberOfTests.

@TestFactory
Stream<DynamicTest> generateRandomNumberOfTests() {
    // Generates random positive integers between 0 and 100 until
    // a number evenly divisible by 7 is encountered.
    Iterator<Integer> inputGenerator = new Iterator<Integer>() {

        Random random = new Random();

        // end::user_guide[]
        {
            // Use fixed seed to always produce the same number of tests for execution on the CI server
            random = new Random(23);
        }

        // tag::user_guide[]
        int current;

        @Override
        public boolean hasNext() {
            current = random.nextInt(100);
            return current % 7 != 0;
        }

        @Override
        public Integer next() {
            return current;
        }
    };
    // Generates display names like: input:5, input:37, input:85, etc.
    Function<Integer, String> displayNameGenerator = (input) -> "input:" + input;
    // Executes tests based on the current input value.
    ThrowingConsumer<Integer> testExecutor = (input) -> assertTrue(input % 7 != 0);
    // Returns a stream of dynamic tests.
    return DynamicTest.stream(inputGenerator, displayNameGenerator, testExecutor);
}

Example 2 with ThrowingConsumer

use of org.junit.jupiter.api.function.ThrowingConsumer in project tutorials by eugenp.

the class DynamicTests method dynamicUserTestCollection.

@TestFactory
public Stream<DynamicTest> dynamicUserTestCollection() {
    List<User> inputList = Arrays.asList(new User("john@yahoo.com", "John"), new User("ana@yahoo.com", "Ana"));
    Function<User, String> displayNameGenerator = (input) -> "Saving user: " + input;
    UserDAO userDAO = new UserDAO();
    ThrowingConsumer<User> testExecutor = (input) -> {
        userDAO.add(input);
        assertNotNull(userDAO.findOne(input.getEmail()));
    };
    return DynamicTest.stream(inputList.iterator(), displayNameGenerator, testExecutor);
}