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failing tests on Sunday
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‎labs/lab-1/src/test/java/pragmatech/digital/workshops/lab1/experiment/MockitoDemoTest.java‎

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import java.util.Optional;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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import org.mockito.InjectMocks;
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private BookService bookService;
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@Test
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@Disabled("Disabled to prevent test failure due to Sunday restriction in BookService")
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void shouldReturnBookWhenFound() {
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// Arrange
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when(bookRepository.findByIsbn("1234")).thenReturn(Optional.empty());

‎labs/lab-1/src/test/java/pragmatech/digital/workshops/lab1/solutions/Solution1UnitTest.java‎

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import java.time.ZoneId;
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import java.util.Optional;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.extension.ExtendWith;
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@Test
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@DisplayName("Should create a book when ISBN does not exist")
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@Disabled("Disabled to prevent test failure due to Sunday restriction in BookService")
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void shouldCreateBookWhenIsbnDoesNotExist() {
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// Arrange
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BookService cut = new BookService(bookRepository);

‎labs/lab-5/src/test/java/pragmatech/digital/workshops/lab5/experiment/BookControllerIT.java‎

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package pragmatech.digital.workshops.lab5.experiment;
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import java.net.URI;
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import java.time.LocalDate;
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import org.junit.jupiter.api.AfterEach;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Nested;
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import org.junit.jupiter.api.Test;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.test.context.SpringBootTest;
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import org.springframework.boot.webtestclient.autoconfigure.AutoConfigureWebTestClient;
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import org.springframework.context.annotation.Import;
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import org.springframework.http.MediaType;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.web.reactive.server.WebTestClient;
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import pragmatech.digital.workshops.lab5.LocalDevTestcontainerConfig;
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import pragmatech.digital.workshops.lab5.config.OpenLibraryApiStub;
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import pragmatech.digital.workshops.lab5.config.WireMockContextInitializer;
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import pragmatech.digital.workshops.lab5.entity.Book;
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import pragmatech.digital.workshops.lab5.repository.BookRepository;
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/**
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* Integration tests for {@link pragmatech.digital.workshops.lab5.controller.BookController}
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* using a real embedded HTTP server (RANDOM_PORT).
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*
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* <p>Key observations about this setup:
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* <ul>
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* <li>A real Tomcat server starts on a random port — WebTestClient sends actual TCP requests</li>
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* <li>The test thread and server thread are DIFFERENT — {@code @Transactional} on this class
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* would NOT roll back server-side changes (different transaction boundary)</li>
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* <li>Data saved directly via {@code bookRepository} in {@code @BeforeEach} IS visible to
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* the server because it is auto-committed before the HTTP request is sent</li>
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* <li>Manual cleanup via {@code @AfterEach} is required to prevent data leaking between tests</li>
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* </ul>
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*/
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@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
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@Import(LocalDevTestcontainerConfig.class)
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@ContextConfiguration(initializers = WireMockContextInitializer.class)
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@AutoConfigureWebTestClient
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class BookControllerIT {
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private static final String VALID_ISBN = "978-0134757599";
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@Autowired
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private WebTestClient webTestClient;
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@Autowired
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private BookRepository bookRepository;
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@Autowired
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private OpenLibraryApiStub openLibraryApiStub;
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@AfterEach
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void cleanUp() {
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// The server thread commits data to the shared database.
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// We cannot rely on @Transactional rollback here — manual cleanup is required.
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bookRepository.deleteAll();
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}
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@Nested
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class GetAllBooks {
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@BeforeEach
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void setUp() {
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// Data saved here is auto-committed BEFORE the HTTP request is sent.
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// The server thread CAN see this data because it is already in the DB.
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bookRepository.save(new Book("111-1234567890", "Clean Code", "Robert C. Martin", LocalDate.of(2008, 8, 1)));
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bookRepository.save(new Book("222-1234567890", "Effective Java", "Joshua Bloch", LocalDate.of(2018, 1, 6)));
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}
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@Test
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void shouldReturnAllBooksWhenGettingAllBooks() {
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webTestClient.get()
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.uri("/api/books")
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.accept(MediaType.APPLICATION_JSON)
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.exchange()
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.expectStatus().isOk()
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.expectBody()
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.jsonPath("$").isArray()
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.jsonPath("$.length()").isEqualTo(2);
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}
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@Test
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void shouldAllowUnauthenticatedAccessToBookListWhenGettingAllBooks() {
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webTestClient.get()
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.uri("/api/books")
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.exchange()
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.expectStatus().isOk();
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}
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}
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@Nested
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class GetBookById {
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@Test
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void shouldReturnBookWhenBookExistsAndUserIsAuthenticated() {
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Book savedBook = bookRepository.save(
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new Book("333-1234567890", "Domain-Driven Design", "Eric Evans", LocalDate.of(2003, 8, 30)));
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webTestClient.get()
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.uri("/api/books/{id}", savedBook.getId())
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.accept(MediaType.APPLICATION_JSON)
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.exchange()
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.expectStatus().isOk()
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.expectBody()
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.jsonPath("$.isbn").isEqualTo("333-1234567890")
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.jsonPath("$.title").isEqualTo("Domain-Driven Design")
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.jsonPath("$.status").isEqualTo("AVAILABLE");
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}
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@Test
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void shouldReturn401WhenGettingBookByIdWithoutAuthentication() {
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// GET /api/books/{id} requires ROLE_USER — no credentials → 401
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webTestClient.get()
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.uri("/api/books/1")
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.exchange()
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.expectStatus().isUnauthorized();
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}
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@Test
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void shouldReturn404WhenBookDoesNotExist() {
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webTestClient.get()
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.uri("/api/books/99999")
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.exchange()
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.expectStatus().isNotFound();
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}
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}
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@Nested
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class CreateBook {
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@Test
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void shouldCreateBookAndReturnLocationWhenRequestIsValid() {
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openLibraryApiStub.stubForSuccessfulBookResponse(VALID_ISBN);
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String requestBody = """
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{
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"isbn": "%s",
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"title": "Effective Java",
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"author": "Joshua Bloch",
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"publishedDate": "2018-01-06"
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}
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""".formatted(VALID_ISBN);
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URI locationUri = webTestClient.post()
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.uri("/api/books")
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.contentType(MediaType.APPLICATION_JSON)
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.bodyValue(requestBody)
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.exchange()
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.expectStatus().isCreated()
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.expectHeader().exists("Location")
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.returnResult(Void.class)
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.getResponseHeaders()
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.getLocation();
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// The book was committed by the server thread — we can now fetch it
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webTestClient.get()
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.uri(locationUri.getPath())
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.exchange()
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.expectStatus().isOk()
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.expectBody()
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.jsonPath("$.isbn").isEqualTo(VALID_ISBN)
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.jsonPath("$.title").isEqualTo("Effective Java")
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.jsonPath("$.status").isEqualTo("AVAILABLE");
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}
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@Test
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void shouldReturn400WhenIsbnFormatIsInvalid() {
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String requestBody = """
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{
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"isbn": "not-a-valid-isbn",
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"title": "Some Book",
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"author": "Some Author",
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"publishedDate": "2020-01-01"
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}
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""";
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webTestClient.post()
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.uri("/api/books")
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.contentType(MediaType.APPLICATION_JSON)
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.bodyValue(requestBody)
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.exchange()
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.expectStatus().isBadRequest();
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}
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@Test
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void shouldReturn401WhenCreatingBookWithoutAuthentication() {
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String requestBody = """
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{
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"isbn": "%s",
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"title": "Effective Java",
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"author": "Joshua Bloch",
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"publishedDate": "2018-01-06"
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}
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""".formatted(VALID_ISBN);
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webTestClient.post()
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.uri("/api/books")
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.contentType(MediaType.APPLICATION_JSON)
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.bodyValue(requestBody)
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.exchange()
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.expectStatus().isUnauthorized();
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}
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}
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@Nested
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class DeleteBook {
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@Test
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void shouldDeleteBookWhenUserIsAdmin() {
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Book savedBook = bookRepository.save(
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new Book("444-1234567890", "Refactoring", "Martin Fowler", LocalDate.of(2018, 11, 20)));
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webTestClient.delete()
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.uri("/api/books/{id}", savedBook.getId())
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.headers(headers -> headers.setBasicAuth("admin", "admin"))
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.exchange()
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.expectStatus().isNoContent();
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}
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@Test
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void shouldReturn403WhenDeletingBookWithoutAdminRole() {
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Book savedBook = bookRepository.save(
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new Book("555-1234567890", "The Pragmatic Programmer", "David Thomas", LocalDate.of(2019, 9, 13)));
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webTestClient.delete()
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.uri("/api/books/{id}", savedBook.getId())
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.headers(headers -> headers.setBasicAuth("user", "user"))
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.exchange()
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.expectStatus().isForbidden();
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}
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}
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}

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