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我收到此错误,当我尝试在我的春季启动应用程序中运行unitTest。错误与单元测试Zipkin(不能模拟Span.baggageItems)
java.lang.NullPointerException: null
at org.springframework.cloud.sleuth.Span.baggageItems(Span.java:381)
at org.springframework.cloud.sleuth.instrument.web.ZipkinHttpSpanInjector.inject(ZipkinHttpSpanInjector.java:27)
at org.springframework.cloud.sleuth.instrument.web.ZipkinHttpSpanInjector.inject(ZipkinHttpSpanInjector.java:15)
at org.springframework.cloud.sleuth.instrument.web.client.AbstractTraceHttpRequestInterceptor.publishStartEvent(AbstractTraceHttpRequestInterceptor.java:60)
at org.springframework.cloud.sleuth.instrument.web.client.TraceRestTemplateInterceptor.intercept(TraceRestTemplateInterceptor.java:52)
at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:86)
我注意到,当我使用这个版本弹簧云依赖性,我只得到这个错误:
<spring-cloud.version>Dalston.RELEASE</spring-cloud.version>
,但如果我用这个以前的版本:
<spring-cloud.version>Camden.SR6</spring-cloud.version>
一切正常,如我所料
我能做些什么才能避免上次版本出现此错误?
单元测试是为了嘲笑SpanAccessor
public class AbstractSpanAccessorTest {
@MockBean
private Tracer tracer;
@MockBean
private Span span;
private Random random = new Random();
@Before
public void mockSpan() {
long id = createId();
Span spanMock = Span.builder().name("mock").traceId(id).spanId(id).build();
doReturn(spanMock.traceIdString()).when(span).traceIdString();
doReturn(span).when(tracer).getCurrentSpan();
doReturn(span).when(tracer).createSpan(anyString());
}
private long createId() {
return random.nextLong();
}
}
所以它不仅不能为单元测试?你能告诉我你的单元测试吗? –
查看AbstractSpanAccessorTest.class –