我正在为测试每个功能的 Spring 启动应用程序编写 cucumber-java 单元测试。当我与 spring boot 集成时，@Autowired 类抛出 NullPointer 异常。
spring boot应用类,
@SpringBootApplication
public class SpringBootCucumberTest {
public static void main(String[] args) {
SpringApplication.run(SpringBootCucumberTest.class, args);
}
}
要测试的类,
@Component
public class Library {
private final List<BookVo> store = new ArrayList<BookVo>();
public void addBook(final BookVo BookVo) {
this.store.add(BookVo);
}
}
cucumber 单元类,
@RunWith(Cucumber.class)
@CucumberOptions(format = "pretty", features = "src/test/resources")
public class BookSearchTest {
}
cucumber 定义类,
public class BookSearchSteps extends AbstractDefinition{
@Autowired
private Library library;
private List<BookVo> result = new ArrayList<BookVo>();
@Given(".+book with the title '(.+)', written by '(.+)', published in (.+)")
public void addNewBook(final String title, final String author, @Format("dd MMMMM yyyy") final Date published) {
BookVo book = new BookVo(title, author, published);
library.addBook(book);
}
}
与 cucumber 类的spring集成,
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringBootCucumberTest.class, loader = SpringApplicationContextLoader.class)
@WebAppConfiguration
@IntegrationTest
public class AbstractDefinition {
public AbstractDefinition() {
}
}
如果这样定义类就可以了,
public class BookSearchSteps extends AbstractDefinition{
private Library library = new Library();
private List<BookVo> result = new ArrayList<BookVo>();
@Given(".+book with the title '(.+)', written by '(.+)', published in (.+)")
public void addNewBook(final String title, final String author, @Format("dd MMMMM yyyy") final Date published) {
BookVo book = new BookVo(title, author, published);
library.addBook(book);
}
}
这样定义class是不行的，抛出NullPointer异常，
public class BookSearchSteps extends AbstractDefinition{
@Autowired
private Library library;
private List<BookVo> result = new ArrayList<BookVo>();
@Given(".+book with the title '(.+)', written by '(.+)', published in (.+)")
public void addNewBook(final String title, final String author, @Format("dd MMMMM yyyy") final Date published) {
BookVo book = new BookVo(title, author, published);
library.addBook(book);
}
}
@Autowired 在这个地方不起作用，我在运行测试时也看不到 Spring 引导应用程序日志。是集成springboot应用类进行cucumber单元测试的正确方式。请建议我解决此问题。
最佳答案
下面解决了这个问题，需要在 maven 依赖项中包含 cucumber-spring。
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-spring</artifactId>
<version>1.2.4</version>
<scope>test</scope>
</dependency>
cucumber-spring 的 pom.xml，
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-junit</artifactId>
<version>1.2.4</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>info.cukes</groupId>
<artifactId>cucumber-spring</artifactId>
<version>1.2.4</version>
<scope>test</scope>
</dependency>
修改后的 cucumber 定义文件，
@ContextConfiguration(classes = SpringBootCucumberTest.class, loader = SpringApplicationContextLoader.class)
public class BookSearchSteps {
@Autowired
private Library library;
private List<BookVo> result = new ArrayList<BookVo>();
@Given(".+book with the title '(.+)', written by '(.+)', published in (.+)")
public void addNewBook(final String title, final String author, @Format("dd MMMMM yyyy") final Date published) {
BookVo book = new BookVo(title, author, published);
library.addBook(book);
}
}
这解决了 @Autowired 和 springboot 集成问题。我们将能够使用 Cucumber 指定的更改来测试 Spring Boot 应用程序。
关于java - 具有 Spring Boot 集成的 Cucumber Java - Spring @Autowired 抛出 NullPointer 异常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37859073/