如何在Spock中创建通用CRUD控制器测试

Question

是否可以在Spock中为Spring控制器创建通用单元测试？我在Spring Boot中有一个抽象控制器，它由一些特定的控制器扩展。结果是每个控制器都有相同的CRUD实现。所以，现在我想为这些控制器创建类似的单元测试，但我不能在Spock测试中使用构造函数。我得到错误

CrudControllerTest.groovy
Error:(16, 5) Groovyc: Constructors are not allowed; instead, define a 'setup()' or 'setupSpec()' method
IngredientControllerTest.groovy
Error:(7, 5) Groovyc: Constructors are not allowed; instead, define a 'setup()' or 'setupSpec()' method

对于以下代码

abstract class CrudControllerTest<T, R extends JpaRepository<T, Long>, C extends CrudController<T,R>> extends Specification {
private String endpoint
private def repository
private def controller
private MockMvc mockMvc

CrudControllerTest(def endpoint, R repository, C controller) {
this.endpoint = endpoint
this.repository = repository
this.controller = controller
this.mockMvc = MockMvcBuilders.standaloneSetup(controller).build()
}

def "Should get 404 when product does not exists"() {
given:
repository.findById(1) >> Optional.empty()
when:
def response = mockMvc.perform(MockMvcRequestBuilders.get(endpoint + '/1')).andReturn().response
then:
response.status == HttpStatus.NOT_FOUND.value()
}
}

class IngredientControllerTest extends CrudControllerTest<Ingredient, IngredientRepository, IngredientController> {

IngredientControllerTest() {
def repository = Mock(IngredientRepository)
super("/ingredients", repository, new IngredientController(Mock(repository)))
}
}

有没有其他方法可以在Spock中实现通用单元测试？

Answer 1

不能为Specifications使用构造函数，而可以使用模板方法模式。使用单独的方法：

abstract class CrudControllerTest extends Specification {
private String endpoint
private def repository
private def controller
private MockMvc mockMvc

def setup() {
endpoint = createEndpoint()
repository = createRepository()
controller = createController()
mockMvc = MockMvcBuilders.standaloneSetup(controller).build()
}

abstract createEndpoint()
abstract createRepository()
abstract createController()

def "Should get 404 when product does not exists"() {
given:
repository.findById(1) >> Optional.empty()
when:
def response = mockMvc.perform(MockMvcRequestBuilders.get(endpoint + '/1')).andReturn().response
then:
response.status == HttpStatus.NOT_FOUND.value()
}
}

class IngredientControllerTest extends CrudControllerTest<Ingredient, IngredientRepository, IngredientController> {

def createEndpoint() {
"/ingredients"
}
def createRepository {
Mock(IngredientRepository)
}
def createController() {
new IngredientController(repository)
}
}

或者使用一个返回所有内容的方法，这有点好，因为您的一些值需要引用另一个值：

abstract class CrudControllerTest extends Specification {
private String endpoint
private def repository
private def controller
private MockMvc mockMvc

def setup() {
(endpoint, repository, controller) = createSut()
mockMvc = MockMvcBuilders.standaloneSetup(controller).build()
}

abstract createSut()

def "Should get 404 when product does not exists"() {
given:
repository.findById(1) >> Optional.empty()
when:
def response = mockMvc.perform(MockMvcRequestBuilders.get(endpoint + '/1')).andReturn().response
then:
response.status == HttpStatus.NOT_FOUND.value()
}
}

class IngredientControllerTest extends CrudControllerTest<Ingredient, IngredientRepository, IngredientController> {

def createSut() {
def repo = Mock(IngredientRepository)
["/ingredients", repo, new IngredientController(repository)]
}
}