SpringBootTest
-
描述:
該註解是用到類名上,表示自動啓動加載類或指定某個或多個加載啓動類,默認會加載當前module下的啓動類。而啓動類(如下)
@SpringBootApplication public class TestApplication { public static void main(String[] args) { SpringApplication.run(TestApplication.class, args); } }
的
@SpringBootApplication
組合了多個註解,如@componentScan
、@SpringBootConfiguration
、@EnableAutoConfiguration
。這些註解自動開啓了自動掃描、依賴注入、自動配置等功能,而且main裏的方法又加載了監聽器、過濾器、攔截器等功能,具體查看SpringApplication.run方法的源碼。 -
樣例:
/**
* SpringBootTestDemo
*
* @author orjrs
* @date 2018-10-06 19:51
*/
@RunWith(SpringRunner.class)
//@SpringBootTest // 1
@SpringBootTest(classes = TestApplication.class) // 2
//@SpringBootTest(classes={TestApplication.class,XXX.class}) // 3
public class SpringBootTestDemo {
// 1. 測試類會自動加載啓動類,默認module下的啓動類
// 2. 可以指定具體的啓動類,且可以多個(3)
// 4. SpringBoot 2.0+版本後,默認生產啓動測試類,
// 可以直接extends TestApplicationTests,這樣就不用家@RunWith和@SpringBo0tTest註解
}
2.註解源碼:
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.core.annotation.AliasFor;
import org.springframework.test.context.BootstrapWith;
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@BootstrapWith(SpringBootTestContextBootstrapper.class)
public @interface SpringBootTest {
@AliasFor("properties")
String[] value() default {};
@AliasFor("value")
String[] properties() default {};
Class<?>[] classes() default {};
SpringBootTest.WebEnvironment webEnvironment() default SpringBootTest.WebEnvironment.MOCK;
public static enum WebEnvironment {
MOCK(false),
RANDOM_PORT(true),
DEFINED_PORT(true),
NONE(false);
private final boolean embedded;
private WebEnvironment(boolean embedded) {
this.embedded = embedded;
}
public boolean isEmbedded() {
return this.embedded;
}
}
}