package org.skywalking.apm.plugin.tomcat78x;
import org.hamcrest.CoreMatchers;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
import org.skywalking.apm.agent.core.boot.ServiceManager;
import org.skywalking.apm.agent.core.context.TracerContext;
import org.skywalking.apm.agent.core.plugin.interceptor.EnhancedClassInstanceContext;
import org.skywalking.apm.agent.core.plugin.interceptor.enhance.InstanceMethodInvokeContext;
import org.skywalking.apm.agent.core.plugin.interceptor.enhance.MethodInterceptResult;
import org.skywalking.apm.sniffer.mock.context.MockTracerContextListener;
import org.skywalking.apm.sniffer.mock.context.SegmentAssert;
import org.skywalking.apm.trace.LogData;
import org.skywalking.apm.trace.Span;
import org.skywalking.apm.trace.TraceSegment;
import org.skywalking.apm.trace.TraceSegmentRef;
import org.skywalking.apm.trace.tag.Tags;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.when;
@RunWith(MockitoJUnitRunner.class)
public class TomcatInterceptorTest {
private TomcatInterceptor tomcatInterceptor;
private MockTracerContextListener contextListener;
@Mock
private HttpServletRequest request;
@Mock
private HttpServletResponse response;
@Mock
private EnhancedClassInstanceContext classInstanceContext;
@Mock
private InstanceMethodInvokeContext methodInvokeContext;
@Mock
private MethodInterceptResult methodInterceptResult;
@Before
public void setUp() throws Exception {
ServiceManager.INSTANCE.boot();
tomcatInterceptor = new TomcatInterceptor();
contextListener = new MockTracerContextListener();
TracerContext.ListenerManager.add(contextListener);
when(request.getRequestURI()).thenReturn("/test/testRequestURL");
when(request.getRequestURL()).thenReturn(new StringBuffer("http://localhost:8080/test/testRequestURL"));
when(response.getStatus()).thenReturn(200);
when(methodInvokeContext.allArguments()).thenReturn(new Object[] {request, response});
}
@Test
public void testWithoutSerializedContextData() {
tomcatInterceptor.beforeMethod(classInstanceContext, methodInvokeContext, methodInterceptResult);
tomcatInterceptor.afterMethod(classInstanceContext, methodInvokeContext, null);
contextListener.assertSize(1);
contextListener.assertTraceSegment(0, new SegmentAssert() {
@Override
public void call(TraceSegment traceSegment) {
assertThat(traceSegment.getSpans().size(), is(1));
Span span = traceSegment.getSpans().get(0);
assertHttpSpan(span);
}
});
}
@Test
public void testWithSerializedContextData() {
when(request.getHeader(TomcatInterceptor.HEADER_NAME_OF_CONTEXT_DATA)).thenReturn("302017.1487666919810.624424584.17332.1.1|1|REMOTE_APP|127.0.0.1|Trace.globalId.123|1");
tomcatInterceptor.beforeMethod(classInstanceContext, methodInvokeContext, methodInterceptResult);
tomcatInterceptor.afterMethod(classInstanceContext, methodInvokeContext, null);
contextListener.assertSize(1);
contextListener.assertTraceSegment(0, new SegmentAssert() {
@Override
public void call(TraceSegment traceSegment) {
assertThat(traceSegment.getSpans().size(), is(1));
Span span = traceSegment.getSpans().get(0);
assertHttpSpan(span);
assertTraceSegmentRef(traceSegment.getRefs().get(0));
}
});
}
@Test
public void testWithOccurException() {
tomcatInterceptor.beforeMethod(classInstanceContext, methodInvokeContext, methodInterceptResult);
tomcatInterceptor.handleMethodException(new RuntimeException(), classInstanceContext, methodInvokeContext);
tomcatInterceptor.afterMethod(classInstanceContext, methodInvokeContext, null);
contextListener.assertSize(1);
contextListener.assertTraceSegment(0, new SegmentAssert() {
@Override
public void call(TraceSegment traceSegment) {
assertThat(traceSegment.getSpans().size(), is(1));
Span span = traceSegment.getSpans().get(0);
assertHttpSpan(span);
assertThat(span.getLogs().size(), is(1));
assertSpanLog(span.getLogs().get(0));
}
});
}
private void assertSpanLog(LogData logData) {
assertThat(logData.getFields().size(), is(4));
assertThat(logData.getFields().get("event"), CoreMatchers.<Object>is("error"));
assertThat(logData.getFields().get("error.kind"), CoreMatchers.<Object>is(RuntimeException.class.getName()));
assertNull(logData.getFields().get("message"));
}
private void assertTraceSegmentRef(TraceSegmentRef ref) {
assertThat(ref.getSpanId(), is(1));
assertThat(ref.getTraceSegmentId(), is("302017.1487666919810.624424584.17332.1.1"));
}
private void assertHttpSpan(Span span) {
assertThat(span.getOperationName(), is("/test/testRequestURL"));
assertThat(Tags.COMPONENT.get(span), is("Tomcat"));
assertThat(Tags.URL.get(span), is("http://localhost:8080/test/testRequestURL"));
assertThat(Tags.STATUS_CODE.get(span), is(200));
assertThat(Tags.SPAN_KIND.get(span), is(Tags.SPAN_KIND_SERVER));
assertTrue(Tags.SPAN_LAYER.isHttp(span));
}
@After
public void tearDown() throws Exception {
TracerContext.ListenerManager.remove(new MockTracerContextListener());
}
}