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testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/interceptor/DynamicFeatureTest.java

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+package org.jboss.resteasy.test.interceptor;
+
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.container.test.api.RunAsClient;
+import org.jboss.arquillian.junit.Arquillian;
+import org.jboss.logging.Logger;
+import org.jboss.resteasy.test.interceptor.resource.AddDynamicFeature;
+import org.jboss.resteasy.test.interceptor.resource.DynamicFeatureResource;
+import org.jboss.resteasy.test.interceptor.resource.GreetingInterceptor;
+import org.jboss.resteasy.utils.PortProviderUtil;
+import org.jboss.resteasy.utils.TestUtil;
+import org.jboss.shrinkwrap.api.Archive;
+import org.jboss.shrinkwrap.api.spec.WebArchive;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.ws.rs.client.Client;
+import javax.ws.rs.client.ClientBuilder;
+import javax.ws.rs.client.Entity;
+import javax.ws.rs.client.WebTarget;
+import javax.ws.rs.core.MediaType;
+
+/**
+ * @tpSubChapter Resteasy-client
+ * @tpChapter Integration tests
+ * @tpTestCaseDetails Test for DynamicFeature
+ * @tpSince RESTEasy 3.8.0
+ */
+@RunWith(Arquillian.class)
+@RunAsClient
+public class DynamicFeatureTest {
+
+   private static final Logger LOG = Logger.getLogger(DynamicFeatureTest.class.getName());
+
+   static Client client;
+
+   @Deployment
+   public static Archive<?> deploy() {
+      WebArchive war = TestUtil.prepareArchive(DynamicFeatureTest.class.getSimpleName());
+      war.addClasses(GreetingInterceptor.class);
+      return TestUtil.finishContainerPrepare(war, null, DynamicFeatureResource.class, AddDynamicFeature.class);
+   }
+
+   @BeforeClass
+   public static void setup() {
+      client = ClientBuilder.newClient();
+   }
+
+   @AfterClass
+   public static void cleanup() {
+      client.close();
+   }
+
+   /**
+    * @tpTestDetails Test dynamic feature.
+    * @tpSince RESTEasy 3.8.0
+    */
+   @Test
+   public void testDynamicFeature() {
+      WebTarget target = client.target(PortProviderUtil.generateURL("/dynamic-feature/hello", DynamicFeatureTest.class.getSimpleName()));
+      Entity<String> entity = Entity.entity( "Tomas", MediaType.TEXT_PLAIN);
+      String response = target.request().post(entity, String.class);
+      Assert.assertEquals("Hello Tomas !", response);
+      LOG.info("Response: " + response);
+   }
+}

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/interceptor/resource/AddDynamicFeature.java

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+package org.jboss.resteasy.test.interceptor.resource;
+
+import org.jboss.logging.Logger;
+
+import javax.ws.rs.container.DynamicFeature;
+import javax.ws.rs.container.ResourceInfo;
+import javax.ws.rs.core.FeatureContext;
+import javax.ws.rs.ext.Provider;
+
+@Provider
+public class AddDynamicFeature implements DynamicFeature {
+
+   private static final Logger LOG = Logger.getLogger(AddDynamicFeature.class.getName());
+
+   @Override
+   public void configure(ResourceInfo resourceInfo, FeatureContext context) {
+      if (resourceInfo.getResourceMethod().getName().equals("hello")) {
+         context.register(GreetingInterceptor.class);
+         LOG.error("This should be happening exactly once");
+      }
+   }
+
+}

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/interceptor/resource/DynamicFeatureResource.java

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+package org.jboss.resteasy.test.interceptor.resource;
+
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+
+@Path("/dynamic-feature")
+public class DynamicFeatureResource {
+
+   @Path("/hello")
+   @GET
+   @POST
+   @Produces("text/plain")
+   @Consumes("text/plain")
+   public String hello(String name) {
+      return name;
+   }
+
+}

testsuite/integration-tests/src/test/java/org/jboss/resteasy/test/interceptor/resource/GreetingInterceptor.java

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+package org.jboss.resteasy.test.interceptor.resource;
+
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.ext.WriterInterceptor;
+import javax.ws.rs.ext.WriterInterceptorContext;
+import java.io.IOException;
+
+public class GreetingInterceptor implements WriterInterceptor {
+
+   @Override
+   public void aroundWriteTo(WriterInterceptorContext context)
+         throws IOException, WebApplicationException {
+      String entity = (String) context.getEntity();
+      if (entity != null) {
+         context.setEntity("Hello " + entity + " !");
+      }
+      context.proceed();
+   }
+
+}