eliasnogueira

Enhancing Project Integrity: A Modernization for Bug-Free Code

Description

Embarking on a Java project involves employing the best strategies, patterns, and architectural decisions, all geared towards a customer-centric.

Yet, there exists an often overlooked facet: quality assurance. While not entirely disregarded, we, as developers, sometimes limit ourselves to performing the basic unity and integration tests, which may leave room for bugs.

Fortunately, there are several straightforward approaches and tools that can be implemented to deliver a bug-free project with minimal effort.

eliasnogueira

Title

Modern Testing Tools for Java Developers

Description

We are, constantly, evolving the codebase by applying the best development practices, approaches, and design patterns. There's a lot of support from frameworks and libraries to do this during the SDLC. New versions of the API framework appear, adding the last trending and here we go again: changing our code to adopt these new things. How awesome it is! We are improving!

How about one of the most important but missed items: quality! matchestalk will show you 5 libraries you, as a Java Developer, to improve the application quality with real-world examples.

eliasnogueira

class MethodSourceCase3ExampleTest {

    @DisplayName("Unpronounceable entity tests")
    @ParameterizedTest(name = "The Simulation {0} shows the error {1}")
    @MethodSource("expensiveProducts")
    void edgeCases(Simulation simulation, String errorMessage) {
        Response response = postSimulation(simulation);
        
        assertThat(response.statusCode).isEqualTo(422);
        assertThat(response.body().errorMessage()).isEqualsTo(errorMessage);

eliasnogueira

class MethodSourceCase2ExampleTest {
    
    @DisplayName("Payment status")
    @ParameterizedTest(name = "The payment with status {0} returns the message {1}")
    @MethodSource("statusList")
    void paymentStatus(Status status, String message) {
        String auditedPayment = auditService.getPayments(status);
        assertThat(status).isEqualTo(message);
    }

eliasnogueira

class MyTestClass {
    
    @DisplayName("Date must be from the current year")
    @ParameterizedTest(name = "Check the current year of {0}")
    @MethodSource("dateList")
    void myTest(LocalDate date) {
        assertThat(date).hasYear(2023);
    }

    static Stream<Arguments> dateList() {

eliasnogueira

Title

Good testing practices in an open-source project

Description

Nowadays the contribution guide in every open-source project is not sufficient to describe the approaches, techniques, and how people solve break changes.

We all know: they are the most democratic projects we can work on, but sometimes not follow basic practices to elevate the project quality.

eliasnogueira

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertAll;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

class SoftAssertionJunit5Test {
    @Test
    void softAssertionUsingJUnit5() {
        var person = Person.builder().name("John").phoneNumber(null).age(16).build();

eliasnogueira

import org.assertj.core.api.SoftAssertions;
import org.junit.jupiter.api.Test;

class HardAssertionTest {

    @Test
    void hardAssertion() {
        var person = Person.builder().name("John").phoneNumber(null).age(16).build();

        assertThat(person.getName()).isNotBlank();

eliasnogueira

import org.assertj.core.api.SoftAssertions;
import org.junit.jupiter.api.Test;

class SoftAssertionTest {

    @Test
    void softAssertionUsingAssertJ() {
        var person = Person.builder().name("John").phoneNumber(null).age(16).build();

        SoftAssertions.assertSoftly(softly -> {

eliasnogueira

public class SoftAssertTestNGTest {

    @Test
    public void testNGSoftAssertion() {
        var person = Person.builder().name("John").phoneNumber(null).age(16).build();
        SoftAssert softAssert = new SoftAssert();

        softAssert.assertEquals(person.getName(), "John");
        softAssert.assertNotNull(person.getPhoneNumber(), "Phone number cannot be null");
        softAssert.assertEquals(person.getAge(), 25, "Age should be equal");