@Test(expected = NoProductsFoundException.class)
public void shouldThrowExceptionWhenNoProductsExists() {
final PageRequest pageRequest = new PageRequest(1, 10);
final Page<Product> page = new PageImpl<>(Collections.<Product>emptyList(), pageRequest, 0);
when(repository.findAll(Matchers.any(PageRequest.class))).thenReturn(page);
productService.getProducts(pageRequest);
}
@Test(expected = NoProductsFoundException.class)
public void shouldThrowExceptionWhenProductsExistsForGivenCategory() {
Pageable pageable = new PageRequest(1, 10);
Long categoryId = 1L;
final Page<Product> page = new PageImpl<>(Collections.<Product>emptyList(), pageable, 0);
when(repository.findByCategoryId(eq(categoryId), Matchers.any(PageRequest.class)))
.thenReturn(page);
productService.getProductsByCategory(categoryId, pageable);
}
@Test
public void shouldReturnExpectedProduct() throws Exception {
final Long id = 1L;
final Product expectedProduct = Product.build(id, "IOL123", "Optimus Prime");
when(repository.findOne(eq(id))).thenReturn(expectedProduct);
final Product actual = productService.getProduct(id);
verify(repository).findOne(eq(id));
assertEquals(expectedProduct, actual);
}
@Test
public void shouldRetrieveAllProducts() throws Exception {
Pageable pageable = new PageRequest(1, 10);
Page<Product> expected =
new PageImpl(
Collections.singletonList(Product.build(1L, "IOL123", "Optimus Prime")), pageable, 1);
when(repository.findAll(Matchers.any(PageRequest.class))).thenReturn(expected);
final Page<Product> actual = productService.getProducts(pageable);
assertEquals(expected, actual);
verify(repository).findAll(Matchers.any(PageRequest.class));
}
@Test
public void shouldRetrieveProductsByCategory() {
Pageable pageable = new PageRequest(1, 10);
Long categoryId = 1L;
Page<Product> page =
new PageImpl(
Collections.singletonList(Product.build(1L, "IOL123", "Optimus Prime")), pageable, 1);
when(repository.findByCategoryId(eq(categoryId), Matchers.any(PageRequest.class)))
.thenReturn(page);
final Page<Product> results = productService.getProductsByCategory(categoryId, pageable);
assertFalse(results.getContent().isEmpty());
}
@Test(expected = ProductNotFoundException.class)
public void shouldThrowExceptionWhenProductNotFound() throws Exception {
when(repository.findOne(anyLong())).thenReturn(null);
productService.getProduct(1L);
}